Adsorption reaction synergistic composite plant deodorant liquid and preparation process thereof

Abstract

This invention discloses an adsorption reaction synergistic composite plant deodorizing liquid and its preparation process, relating to the field of plant deodorizing liquids. It comprises the following components: water, aloe vera extract, grapefruit peel extract, green tea extract, beetroot extract, rosemary essential oil, perilla extract, porous carrier silica, citric acid, zinc acetate, sodium dodecylbenzenesulfonate, and phenoxyethanol. This adsorption reaction synergistic composite plant deodorizing liquid and its preparation process utilize the active ingredients in aloe vera, grapefruit peel, green tea, beetroot, perilla extract, and rosemary essential oil to undergo complex chemical reactions such as addition, oxidation-reduction, neutralization, and condensation with volatile odor molecules such as ammonia, formaldehyde, and hydrogen sulfide. This directly alters the molecular structure of the odor, transforming them into non-toxic and odorless substances, achieving efficient and thorough deodorization at the molecular level.

Description

Technical Field

[0001] This invention relates to plant-based deodorizing liquid technology, specifically to an adsorption-reaction synergistic composite plant-based deodorizing liquid and its preparation process. Background Technology

[0002] Currently, while physical and chemical deodorizers are known to be fast-acting, they suffer from the core drawbacks of "treating the symptoms but not the root cause" and "causing secondary pollution," respectively. Biological deodorizers, on the other hand, are environmentally friendly and thorough, but their slow onset of action and stringent usage conditions limit their widespread application.

[0003] Plant-based deodorizers are a type of deodorizer that uses plant extracts as active ingredients. In a sense, they represent an upgrade from chemical deodorizers. Due to their wide availability, natural and pollution-free nature, high deodorization efficiency, good biodegradability, wide range of applications, and ease of use, they are a type of deodorizer with great development potential.

[0004] Due to its vast land area, expansive latitude, and unique topography, the region boasts extremely rich flora and fauna resources. This provides a unique advantage for research into plant-based deodorizers from the outset. Furthermore, the deep-rooted research and development of traditional Chinese medicine (TCM) provides a strong foundation for the development of a modern industry centered on TCM extracts and encompassing a wide range of plant extracts from around the world. Therefore, this research utilizes different plant extracts as core raw materials, leveraging the unique properties of each herb to thoroughly eliminate ammonia, hydrogen sulfide, and formaldehyde, and innovatively conducts experimental verification studies on carbon monoxide removal.

[0005] This project innovatively uses formulated agents to reduce the cost of chemical raw materials and improve deodorization efficiency, so as to completely eliminate odors rather than simply mask them, and effectively improve safety, so that customers can use it with confidence and comfort. Summary of the Invention

[0006] The purpose of this invention is to provide an adsorption reaction synergistic composite plant deodorizing liquid and its preparation process, so as to solve the core defects of existing deodorizing technologies, namely, although known physical deodorizers and chemical deodorizers are fast-acting, they respectively have the problems of "treating the symptoms but not the root cause" and "secondary pollution".

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adsorption reaction synergistic composite plant deodorizing liquid, comprising the following components: water, aloe vera extract, grapefruit peel extract, green tea extract, beetroot extract, rosemary essential oil, perilla extract, porous carrier silica, citric acid, zinc acetate, sodium dodecylbenzenesulfonate, and phenoxyethanol.

[0008] Further, after washing, drying, and pulverizing the perilla leaves, an organic solvent extraction method was used, employing petroleum ether or ethanol as the extractant, and reflux extraction was performed. The extract was collected and concentrated to obtain perilla extract. The aloe vera extract was obtained by combining organic solvent extraction with water extraction to obtain anthraquinones and sterols. The grapefruit peel extract was obtained by solvent extraction to obtain a viscous paste or essential oil. The green tea extract was obtained by water extraction combined with pulverization and sieving to improve the extraction rate. The beetroot extract was obtained by water extraction. The rosemary essential oil was obtained by steam distillation.

[0009] Furthermore, the porous carrier silica has a particle size of 50-200 mesh and a specific surface area greater than 300 m² / g, which is used to enhance the adsorption capacity of the deodorizing liquid.

[0010] Furthermore, the weight percentages of each component are as follows: water 60-80%, aloe vera extract 2-5%, grapefruit peel extract 1-4%, green tea extract 1-3%, beetroot extract 1-3%, rosemary essential oil 0.5-2%, perilla extract 1-3%, porous carrier silica 2-5%, citric acid 0.1-1%, zinc acetate 0.1-1%, sodium dodecylbenzenesulfonate 0.5-2%, and phenoxyethanol 0.1-0.5%.

[0011] A preparation process for an adsorption reaction synergistic composite plant deodorizing liquid includes the following steps:

[0012] Step 1: Extract the active ingredients from aloe vera, grapefruit peel, green tea, beetroot, and perilla to prepare rosemary essential oil;

[0013] Step 2: Pre-treat the porous carrier silica;

[0014] Step 3: Mix the plant extracts, rosemary essential oil, porous carrier silica, deionized water, citric acid, zinc acetate and sodium dodecylbenzenesulfonate in proportion to form a homogeneous and stable emulsion.

[0015] Furthermore, the step of pretreating the porous carrier silica includes drying the porous carrier silica at 100-120°C for 2-4 hours to remove moisture and impurities.

[0016] Furthermore, in step three, deionized water, citric acid, zinc acetate, and sodium dodecylbenzenesulfonate are first completely dissolved under stirring to form an aqueous phase; then rosemary essential oil is premixed with a small amount of surfactant to form an oil phase; finally, under high-speed shear stirring, the oil phase is slowly added to the aqueous phase to form a uniform and stable emulsion, and then the plant extract composite liquid and porous carrier silica are added.

[0017] Furthermore, this deodorizing liquid utilizes the active ingredients in plant extracts to undergo addition, oxidation-reduction, neutralization, and condensation reactions with volatile odor molecules, while simultaneously employing the adsorption properties of porous silica carriers for deodorization, achieving a highly efficient and thorough deodorization effect.

[0018] Furthermore, this deodorizing liquid is suitable for treating malodorous gases in various scenarios such as homes, communities, and farms.

[0019] Furthermore, this deodorizing liquid does not rely on fragrance to mask odors, but instead directly decomposes odor molecules through chemical reactions to achieve a fundamental deodorizing effect without causing secondary pollution.

[0020] Compared with existing technologies, the adsorption reaction synergistic composite plant deodorizing liquid and its preparation process provided by the present invention have the following beneficial effects:

[0021] By utilizing the active ingredients in aloe vera, grapefruit peel, green tea, beetroot, perilla extract, and rosemary essential oil, this deodorizer undergoes complex chemical reactions with volatile odor molecules such as ammonia, formaldehyde, and hydrogen sulfide, including addition, oxidation-reduction, neutralization, and condensation. This directly alters the molecular structure of the odor, transforming them into non-toxic and odorless substances, achieving highly efficient and thorough deodorization at the molecular level. Simultaneously, the addition of porous silica enhances the adsorption capacity of the deodorizing liquid, further improving its deodorizing effect. Experiments show that this deodorizing liquid has a significantly higher removal efficiency for common malodorous gases such as ammonia, formaldehyde, and hydrogen sulfide than commercially available deodorizers, and also has a certain removal capacity for carbon monoxide, truly achieving root-cause deodorization without secondary pollution.

[0022] By selecting active ingredients from aloe vera, grapefruit peel, green tea, beetroot, perilla extract, and rosemary essential oil, this product undergoes complex chemical reactions such as addition, oxidation-reduction, neutralization, and condensation with volatile odor molecules like ammonia, formaldehyde, and hydrogen sulfide. This directly alters the molecular structure of the odor, transforming them into non-toxic and odorless substances, achieving highly efficient and thorough deodorization at the molecular level. Simultaneously, the addition of porous silica enhances the adsorption capacity of the deodorizing liquid, further improving its deodorizing effect. Experiments show that this deodorizing liquid has a significantly higher removal efficiency for common malodorous gases such as ammonia, formaldehyde, and hydrogen sulfide than commercially available deodorizers, and also has a certain removal capacity for carbon monoxide, truly achieving root-cause deodorization without secondary pollution. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1This is a flow chart illustrating the preparation process of an adsorption reaction synergistic composite plant deodorizing liquid according to the present invention. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Preparation of plant extracts

[0028] (1) Preparation of Perilla Extract

[0029] (a) Raw material preparation: Select 500g of fresh, disease-free perilla leaves, wash them with clean water, and place them in a ventilated place to air dry naturally.

[0030] (b) Drying treatment: Spread the dried perilla leaves evenly on the oven tray, set the oven temperature to 40℃, and dry for 6 hours until the leaves are completely dry and brittle.

[0031] (c) Pulverization: The dried perilla leaves are pulverized to a fineness of 60 mesh using a pulverizer to obtain perilla powder.

[0032] (d) Solvent extraction: Weigh 100g of perilla powder, place it in a round-bottom flask, add 500mL of anhydrous ethanol as the extractant, install a reflux device, and reflux in a 70℃ water bath for 3 hours.

[0033] Stir every 30 minutes during the process to ensure complete extraction.

[0034] (e) Filtration and concentration: After extraction, the extract was filtered using a Buchner funnel and filter paper, and the filtrate was collected. The filtrate was placed in a rotary evaporator and concentrated under reduced pressure at 50°C to approximately 50 mL to obtain the perilla extract.

[0035] (2) Aloe vera extract (organic solvent extraction method):

[0036] (a) Water extraction

[0037] Pre-treatment: Wash fresh aloe vera leaves, peel them, and crush the gel.

[0038] Water extraction: Mix aloe vera gel with a certain proportion of water and stir and extract for several hours at a certain temperature (such as 50-70℃).

[0039] Solid-liquid separation: Insoluble residues are removed by filtration or centrifugation to obtain crude extract.

[0040] Concentration and drying: The filtrate is concentrated under reduced pressure or further spray-dried into powder.

[0041] (b) Solvent extraction: Place the aqueous extract in a separatory funnel, add an organic solvent such as petroleum ether, ethyl acetate or ethanol, and shake to extract.

[0042] (c) Separation and purification: After standing and layering, collect the organic solvent layer (containing lipid-soluble components).

[0043] (d) Solvent recovery: Organic solvents are recovered by rotary evaporation to obtain fat-soluble extracts such as anthraquinones (aloebinin, emodin), sterols, and certain vitamins.

[0044] (3) Grapefruit peel extract (solvent extraction method)

[0045] (a) Pretreatment: Dry and crush the grapefruit peel.

[0046] (b) Extraction: The grapefruit peel powder was soaked in an organic solvent (petroleum ether) and then extracted by reflux at 55 degrees Celsius.

[0047] (c) Reduced pressure filtration: After extraction, filter to remove residue.

[0048] (d) Concentration: The solvent is recovered by rotary evaporation to obtain a viscous extract or essential oil.

[0049] (4) Green tea extract (water extraction method)

[0050] (a) Pretreatment: Pulverize the green tea leaves and sieve them (60 mesh). Pulverization can significantly increase the contact area and improve the extraction rate.

[0051] (b) Extraction: Mix green tea powder with a certain proportion of hot water (90°C) and stir to extract for a certain time (25 minutes).

[0052] (c) Solid-liquid separation: Filter while hot and centrifuge at high speed to obtain clear green tea extract.

[0053] (d) Concentration / Drying: The extract can be concentrated under reduced pressure or spray-dried into powder.

[0054] (5) Beetroot extract (water extraction method)

[0055] (a) Pretreatment: Dry the beetroot and grind it into powder (or use fresh raw material directly cut into pieces).

[0056] (b) Extraction: Mix with a certain proportion of water and extract by stirring at a specific temperature (70°C).

[0057] (c) Filtration: Separate the residue to obtain the extract.

[0058] (6) Rosemary essential oil (steam distillation)

[0059] (a) Pretreatment: Dry the rosemary plants (mainly the leaves and flower tips) in the shade and crush them appropriately.

[0060] (b) Loading: Place the raw material into the distillation vessel and add an appropriate amount of water.

[0061] (c) Distillation: Heating water to boiling produces steam. The steam penetrates the plant tissue, vaporizing the essential oil.

[0062] (d) Condensation and collection: The mixture of essential oil and water vapor is cooled into liquid by the condenser and flows into the oil-water separator.

[0063] (e) Separation: Since essential oils are less dense than water and are immiscible, they will separate into layers in the separator. The upper layer is rosemary essential oil, and the lower layer is "hydrosol" containing water-soluble components, which can be collected and used separately.

[0064] Example 2: Pretreatment of porous carrier silica. Purpose: To pretreat porous carrier silica to improve its surface activity and characterize its physicochemical properties, providing a basis for the subsequent preparation of composite deodorizing liquid.

[0065] step:

[0066] (a) Raw material selection: Select 200g of porous carrier silica with a particle size of 100 mesh and a specific surface area greater than 350m² / g.

[0067] (b) Drying treatment: The porous carrier silica is placed in a muffle furnace and the temperature is set at 110°C for 4 hours to remove adsorbed moisture and impurities.

[0068] Example 3: Formulation and Optimization of Plant Extracts

[0069] Objective: To improve deodorization efficiency by combining different plant extracts and leveraging the synergistic effect between the components.

[0070] step:

[0071] (a) Individual extraction: Aloe vera extract, grapefruit peel extract, green tea extract, beetroot extract and perilla extract were prepared according to the method of Example 1.

[0072] (b) Preliminary compounding: Based on the preliminary experimental results, the proportions of each extract were initially determined as follows: aloe vera extract 30%, grapefruit peel extract 20%, green tea extract 15%, beetroot extract 15%, and perilla extract 20%.

[0073] (c) Performance test: The preliminary compounded plant extract was reacted with equal amounts of ammonia, formaldehyde solution and hydrogen sulfide gas to determine its removal efficiency. The ratio was adjusted according to the test results until the best deodorization effect was achieved.

[0074] (d) Final compounding: The optimal ratio was determined to be 25% aloe vera extract, 22% grapefruit peel extract, 18% green tea extract, 18% beetroot extract, and 17% perilla extract.

[0075] Results: The optimized compound plant extract significantly improved the removal efficiency of ammonia, formaldehyde and hydrogen sulfide compared with the use of each alone.

[0076] Example 4: Preparation of Adsorption Reaction Synergistic Composite Plant Deodorizing Liquid

[0077] Objective: To prepare a composite plant-based deodorizing liquid with high adsorption and reaction capabilities.

[0078] step:

[0079] (a) Aqueous phase preparation: In a clean reaction vessel, add 700 mL of deionized water, start stirring, and add 5 g of citric acid, 5 g of zinc acetate and 15 g of sodium dodecylbenzenesulfonate in sequence. After complete dissolution, an aqueous phase is formed.

[0080] (b) Preparation of oil phase: In another container, add 10g of rosemary essential oil and 2g of nonionic surfactant, and premix evenly to form an oil phase.

[0081] (c) Emulsification: Under high-speed shear stirring (2000 rpm), the oil phase is slowly added to the aqueous phase and stirred continuously for 10 minutes to form a uniform and stable emulsion.

[0082] (d) Mixing: Add 100g of the compound plant extract prepared in Example 3 and 30g of the porous carrier silica pretreated in Example 2 to the emulsion, and continue stirring for 30 minutes to ensure that all components are fully mixed.

[0083] (e) Adjustment and filling: Add 3g of phenoxyethanol as a preservative, and adjust the pH of the final product to 6.5 with a pH adjuster. After standing to defoam, fill into spray bottles and seal for storage.

[0084] Example 5: Performance Verification and Application Testing

[0085] Objective: To verify the actual deodorizing effect of the compound plant deodorizing liquid and explore its application scenarios.

[0086] 1. Experimental equipment

[0087] Pump-type triple gas concentration analyzer [ammonia (NH3), formaldehyde (HCHO), hydrogen sulfide (H2S)], carbon monoxide (CO) detector, 10L sealed box, 30mL spray bottle, watch glass, dropper, beaker, glass rod, graduated cylinder

[0088] 2. Experimental reagents

[0089] Ammonia (25.0-28.0%, analytical grade), formaldehyde (37.0-40.0%, analytical grade), hydrogen sulfide, carbon monoxide, deodorizer A (plant-based), deodorizer B (commercially available), blank control group C (water).

[0090] 3. Experimental Methods

[0091] In this study, four gases—ammonia, formaldehyde, hydrogen sulfide, and carbon monoxide—were selected as odor source indicators. The deodorizing effects of aloe vera, grapefruit peel, green tea, beetroot, and rosemary extracts were investigated. Removal efficiency was calculated using the following formula:

[0092] Removal efficiency (%) = (C′-C) / C′×100% (Where: C′ is the initial concentration of the gas, in mg / L; C is the gas concentration measured at different times, in mg / L.)

[0093] 4. Specific experimental procedures

[0094] (1) Effect of deodorant on ammonia concentration

[0095] Experimental conditions: room temperature 25℃, take 0.1 mL of ammonia water into a watch glass and place it in a sealed box.

[0096] Experimental procedure: After the ammonia concentration stabilized, spray one pump (0.25 mL) of deodorant A and B respectively, and read the data once per minute. Set up a blank control group C.

[0097] Experimental data:

[0098] Initial concentration C′: 2.5 mg / L.

[0099] Deodorant A: The concentration dropped to 0.3 mg / L after 5 minutes, with a removal efficiency of 88%.

[0100] Deodorant B: The concentration dropped to 1.0 mg / L after 5 minutes, with a removal efficiency of 60%.

[0101] Blank control group C: Concentration remained basically unchanged.

[0102] Beneficial effects: Deodorant A has a significant effect on removing ammonia, far exceeding that of commercially available deodorant B.

[0103] (2) Effect of deodorant on formaldehyde concentration

[0104] Experimental conditions: room temperature 25℃, take 0.1 mL of formaldehyde solution into a watch glass and place it in a sealed box.

[0105] Experimental procedure: After the formaldehyde concentration stabilized, spray one pump of deodorant A and one pump of deodorant B respectively, and read the data once per minute. Set up a blank control group C.

[0106] Experimental data:

[0107] Initial concentration C′: 3.0 mg / L.

[0108] Deodorant A: The concentration dropped to 0.4 mg / L after 10 minutes, with a removal efficiency of 86.7%.

[0109] Deodorant B: The concentration dropped to 1.5 mg / L after 10 minutes, with a removal efficiency of 50%.

[0110] Blank control group C: The concentration remained basically unchanged.

[0111] Beneficial effects: Deodorant A is significantly more effective at removing formaldehyde than commercially available deodorant B.

[0112] (3) The effect of deodorant on hydrogen sulfide concentration.

[0113] Experimental conditions: room temperature 25℃, take a small test tube of hydrogen sulfide gas into a watch glass and place it in a sealed box.

[0114] Experimental procedure: After the hydrogen sulfide concentration stabilized, spray one pump of deodorant A and one pump of deodorant B respectively, and read the data once per minute. Set up a blank control group C.

[0115] Experimental data:

[0116] Initial concentration C′: 1.8 mg / L.

[0117] Deodorant A: The concentration dropped to 0.2 mg / L after 3 minutes, with a removal efficiency of 88.9%.

[0118] Deodorant B: The concentration dropped to 0.8 mg / L after 3 minutes, with a removal efficiency of 55.6%.

[0119] Blank control group C: The concentration remained basically unchanged.

[0120] Beneficial effects: Deodorant A is highly effective at removing hydrogen sulfide, far exceeding that of commercially available deodorant B.

[0121] (4) Effect of deodorant on carbon monoxide concentration (verified separately).

[0122] Experimental conditions: room temperature 25℃, 1 mL of carbon monoxide gas was drawn into a petri dish and placed in a sealed box.

[0123] Experimental procedure: After the carbon monoxide concentration stabilized, spray one pump of deodorant A and one pump of deodorant B respectively, and read the data once per minute. Set up a blank control group C.

[0124] Experimental data:

[0125] Initial concentration C′: 5.0 mg / L.

[0126] Deodorant A: The concentration dropped to 3.5 mg / L after 15 minutes, with a removal efficiency of 30%.

[0127] Deodorant B: The concentration dropped to 4.0 mg / L after 15 minutes, with a removal efficiency of 20%.

[0128] Blank control group C: The concentration remained basically unchanged.

[0129] Beneficial effects: Although deodorant A has a relatively low efficiency in removing carbon monoxide, it is still better than commercially available deodorant B, showing a certain removal ability.

[0130] (5) Deodorization simulating real environment

[0131] Experimental conditions: room temperature 25℃. Take 0.1 mL of formaldehyde solution, 0.1 mL of ammonia water and 1 mL of hydrogen sulfide gas into 3 watch glasses and place them in a sealed box.

[0132] Experimental procedure: After the concentrations of formaldehyde, ammonia, and hydrogen sulfide stabilize, spray one pump of deodorant A, B, and C respectively, and read the gas concentration measurement data once per minute.

[0133] Experimental data:

[0134] Initial concentrations: formaldehyde 3.0 mg / L, ammonia 2.5 mg / L, hydrogen sulfide 1.8 mg / L.

[0135] Deodorant A: After 10 minutes, the formaldehyde concentration dropped to 0.5 mg / L (removal efficiency 83.3%), the ammonia concentration dropped to 0.4 mg / L (removal efficiency 84%), and the hydrogen sulfide concentration dropped to 0.25 mg / L (removal efficiency 86.1%).

[0136] Deodorant B: After 10 minutes, the formaldehyde concentration dropped to 1.6 mg / L (removal efficiency 46.7%), the ammonia concentration dropped to 1.1 mg / L (removal efficiency 56%), and the hydrogen sulfide concentration dropped to 0.9 mg / L (removal efficiency 50%).

[0137] Blank control group C: The concentrations of each gas remained basically unchanged.

[0138] Beneficial effects: In simulated real-world environments, deodorant A showed significant removal effects on a variety of malodorous gases, and its overall deodorization ability was far superior to that of commercially available deodorant B and the blank control group C.

[0139] In summary, the core principle of the adsorption reaction synergistic composite plant deodorizing liquid provided by the present invention lies in the ingenious use of the active ingredients in the plant extract to undergo a complex chemical reaction with volatile odor molecules, combined with the adsorption effect of porous carrier silica, to achieve a highly efficient and thorough deodorization effect.

[0140] Chemical reaction principle: Aloe vera, grapefruit peel, green tea, beetroot, perilla extract, and rosemary essential oil are rich in various active ingredients. These ingredients can undergo addition, redox, neutralization, and condensation reactions with volatile odor molecules such as ammonia, formaldehyde, and hydrogen sulfide. Through these reactions, the structure of odor molecules is directly altered, transforming them into non-toxic and odorless substances. This achieves deodorization at the molecular level, rather than relying on fragrance to mask the odor, truly addressing the root cause of the problem.

[0141] Adsorption Principle: Porous silica carriers possess a unique physical structure with a particle size of 50-200 mesh and a specific surface area greater than 300 m² / g. This structure endows them with a strong adsorption capacity, enabling them to adsorb odor molecules from the air and further enhance the deodorizing effect of the deodorizing liquid. During the deodorization process, chemical reactions and adsorption work synergistically to significantly improve deodorization efficiency.

[0142] Experiments show that this compound plant-based deodorizing liquid has a significant removal effect on a variety of common malodorous gases, and also has a certain removal capacity for carbon monoxide, truly achieving the goal of efficient, thorough, and pollution-free deodorization. Specific experimental data are as follows:

[0143] Ammonia removal efficiency: At room temperature (25℃), with an initial ammonia concentration of 2.5 mg / L, after spraying the deodorizer A (compound plant deodorizing liquid) prepared in this invention for 5 minutes, the concentration dropped to 0.3 mg / L, achieving a removal efficiency of 88%. In contrast, under the same conditions, the concentration of commercially available deodorizer B dropped to 1.0 mg / L after 5 minutes, with a removal efficiency of only 60%. The concentration of the blank control group C remained essentially unchanged. This clearly demonstrates that deodorizer A's ammonia removal efficiency is far superior to that of commercially available deodorizer B.

[0144] Formaldehyde removal efficiency: At room temperature (25℃), with an initial formaldehyde concentration of 3.0 mg / L, after spraying deodorant A for 10 minutes, the concentration decreased to 0.4 mg / L, with a removal efficiency of 86.7%; after 10 minutes, the concentration of commercially available deodorant B decreased to 1.5 mg / L, with a removal efficiency of 50%; the concentration of the blank control group C remained essentially unchanged. Therefore, deodorant A is significantly more effective than commercially available deodorant B in removing formaldehyde.

[0145] Removal efficiency of hydrogen sulfide: At room temperature (25℃), with an initial hydrogen sulfide concentration of 1.8 mg / L, after spraying deodorant A for 3 minutes, the concentration dropped to 0.2 mg / L, achieving a removal efficiency of 88.9%; the concentration of commercially available deodorant B dropped to 0.8 mg / L after 3 minutes, with a removal efficiency of 55.6%; the concentration of the blank control group C remained essentially unchanged. This indicates that deodorant A has a very significant effect on the removal of hydrogen sulfide, far exceeding that of commercially available deodorant B.

[0146] Removal efficiency for carbon monoxide: At room temperature (25℃), with an initial carbon monoxide concentration of 5.0 mg / L, after spraying deodorant A for 15 minutes, the concentration decreased to 3.5 mg / L, with a removal efficiency of 30%; after 15 minutes, the concentration of commercially available deodorant B decreased to 4.0 mg / L, with a removal efficiency of 20%; the concentration of the blank control group C remained basically unchanged. Although deodorant A has a relatively low removal efficiency for carbon monoxide, it is still better than commercially available deodorant B, showing a certain removal ability.

[0147] Deodorization effect in simulated real-world environments: In a simulated real-world environment, with formaldehyde (initial concentration 3.0 mg / L), ammonia (initial concentration 2.5 mg / L), and hydrogen sulfide (initial concentration 1.8 mg / L) present simultaneously, after spraying deodorant A for 10 minutes, the formaldehyde concentration decreased to 0.5 mg / L (removal efficiency 83.3%), the ammonia concentration decreased to 0.4 mg / L (removal efficiency 84%), and the hydrogen sulfide concentration decreased to 0.25 mg / L (removal efficiency 86.1%). After treatment with commercially available deodorant B, the formaldehyde concentration decreased to 1.6 mg / L (removal efficiency 46.7%), the ammonia concentration decreased to 1.1 mg / L (removal efficiency 56%), and the hydrogen sulfide concentration decreased to 0.9 mg / L (removal efficiency 50%). The concentrations of each gas in the blank control group C remained essentially unchanged. This further demonstrates that in simulated real-world environments, deodorant A exhibits significant removal effects on multiple malodorous gases, and its overall deodorization ability is far superior to that of commercially available deodorant B and the blank control group C.

[0148] In summary, this invention achieves efficient removal of various malodorous gases through the synergistic effect of the chemical reaction of active ingredients in plant extracts and the adsorption of porous silica carrier. It has significant advantages and broad application prospects in the field of deodorization.

[0149] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A composite plant-based deodorizing liquid with synergistic adsorption reaction, characterized in that, It contains the following components: water, aloe vera extract, grapefruit peel extract, green tea extract, beetroot extract, rosemary essential oil, perilla extract, porous carrier silica, citric acid, zinc acetate, sodium dodecylbenzenesulfonate, and phenoxyethanol.

2. The adsorption reaction synergistic composite plant deodorizing liquid according to claim 1, characterized in that, The perilla extract is prepared through the following steps: perilla leaves are washed, dried, and pulverized, and then extracted using an organic solvent extraction method with petroleum ether or ethanol as the extractant. The extract is collected and concentrated to obtain the perilla extract. The aloe vera extract is obtained by combining organic solvent extraction with water extraction to obtain anthraquinones and sterols. The grapefruit peel extract is obtained by solvent extraction to obtain a viscous extract or essential oil. The green tea extract is obtained by water extraction combined with pulverization and sieving to improve the extraction rate. The beetroot extract is obtained by water extraction. The rosemary essential oil is obtained by steam distillation.

3. The adsorption-reaction synergistic composite plant deodorization liquid according to claim 1, characterized in that, The porous carrier silica has a particle size of 50-200 mesh and a specific surface area greater than 300 m² / g, which is used to enhance the adsorption capacity of the deodorizing liquid.

4. The adsorption-reaction synergistic composite plant deodorization liquid according to claim 1, characterized in that, The weight percentages of each component are as follows: water 60-80%, aloe vera extract 2-5%, grapefruit peel extract 1-4%, green tea extract 1-3%, beetroot extract 1-3%, rosemary essential oil 0.5-2%, perilla extract 1-3%, porous carrier silica 2-5%, citric acid 0.1-1%, zinc acetate 0.1-1%, sodium dodecylbenzenesulfonate 0.5-2%, and phenoxyethanol 0.1-0.5%.

5. A preparation process of an adsorption-reaction synergistic composite plant deodorant liquid, characterized in that, The preparation of the adsorption reaction synergistic composite plant deodorizing liquid as described in any one of claims 1-4 includes the following steps: Step 1: Extract the active ingredients from aloe vera, grapefruit peel, green tea, beetroot, and perilla to prepare rosemary essential oil; Step 2: Pre-treat the porous carrier silica; Step 3: Mix the plant extracts, rosemary essential oil, porous carrier silica, deionized water, citric acid, zinc acetate and sodium dodecylbenzenesulfonate in proportion to form a homogeneous and stable emulsion.

6. The preparation process of the adsorption reaction synergistic composite plant deodorizing liquid according to claim 5, characterized in that, The pretreatment step of the porous carrier silica includes drying the porous carrier silica at 100-120°C for 2-4 hours to remove moisture and impurities.

7. The preparation process of the adsorption reaction synergistic composite plant deodorizing liquid according to claim 5, characterized in that, In step three, deionized water, citric acid, zinc acetate, and sodium dodecylbenzenesulfonate are first completely dissolved under stirring to form an aqueous phase; then rosemary essential oil is premixed with a small amount of surfactant to form an oil phase; finally, the oil phase is slowly added to the aqueous phase under high-speed shear stirring to form a homogeneous and stable emulsion, and then plant extract composite liquid and porous carrier silica are added.

8. The adsorption reaction synergistic composite plant deodorizing liquid according to claim 1, characterized in that, This deodorizing liquid deodorizes by having the active ingredients in the plant extract react with volatile odor molecules through addition, oxidation-reduction, neutralization, and condensation reactions, while also utilizing the adsorption properties of porous silica as a carrier.

9. The adsorption reaction synergistic composite plant deodorizing liquid according to claim 1, characterized in that, This deodorizing liquid is suitable for treating malodorous gases in various settings such as homes, communities, and farms.

10. The adsorption reaction synergistic composite plant deodorizing liquid according to claim 1, characterized in that, This deodorizing liquid does not rely on fragrance to mask odors, but instead decomposes odor molecules directly through a chemical reaction, achieving a fundamental deodorizing effect without causing secondary pollution.

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