Anion purification liquid for removing formaldehyde and purifying air and preparation method of anion purification liquid

Abstract

The invention discloses an anion purification liquid for formaldehyde removal and air purification, which comprises the following components in percentage by mass: 20% of natural plant extract, 10-15% of anion cellulose, 3-5% of nano six-ring stone, 4-5% of cryolite and 55-60% of deionized water, the preparation method comprises the following steps: putting the natural plant extract liquid, the negative ion cellulose, the nano six-ring stone, the rare spar and the deionized water into a stirrer according to the mass percent, and mixing and stirring for 1-3 minutes at the speed of 300 r / min to obtain the negative ion purification liquid. The negative ion purification liquid prepared by the invention has the effect that plants can ionize and release negative oxygen ions, realizes air purification by utilizing the diffusion fluidity of air, has the functions of resisting (inhibiting) bacteria, removing aldehyde, sterilizing and removing odor, and creates clean, healthy and health-preserving living and working spaces.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to a negative ion purification liquid for removing formaldehyde and purifying air and a preparation method thereof. Background Art

[0002] The residual formaldehyde and other harmful components in the home decoration process volatilize and release seriously endanger human health. Common formaldehyde removal products on the market include:

[0003] (1) Sealing agent. This is mainly used to treat the exposed joints and cross-sections of furniture and boards, thereby slowing down the release of formaldehyde. However, this is only one part of the formaldehyde removal process and needs to be used in conjunction with other agents. The construction is complex and the effectiveness is not long-lasting.

[0004] (2) Amino acids. Generally speaking, this type of product can quickly remove free and adsorbed formaldehyde in the home through chemical reactions. The disadvantage is that the formaldehyde that is later volatilized in a combined state cannot be removed again.

[0005] (3) Photocatalyst. Photocatalyst (main component: titanium dioxide) acts as a catalyst and is not consumed. As long as there is light, it can continue to react with formaldehyde. However, its disadvantage is that it cannot be used at night and must rely on ultraviolet light.

[0006] In addition, when the indoor environment is poorly ventilated and the air flow is poor, the presence of microorganisms will also produce odors, especially in the bathroom where there will be hydrogen sulfide and ammonia, which will affect the living environment and quality. Commonly used air purification products on the market include:

[0007] (1) Polymer deodorants. This type of product, through its high viscosity, can wrap and emulsify the functional groups of harmful gases and odor molecules, breaking them apart and effectively removing odors. The effect is very obvious immediately after spraying, but the disadvantage is that it is short-lived and prone to rebound, and requires continuous use for better results.

[0008] (2) Air fresheners. These products can quickly cover up indoor odors and provide immediate olfactory comfort, but they mainly confuse the sense of smell by emitting fragrance and do not actually remove harmful substances in the air. Long-term use may cause allergic reactions, irritate the respiratory tract, and cause secondary pollution to the environment. Summary of the invention

[0009] The object of the present invention is to provide a negative ion purification liquid for formaldehyde removal and air purification and a preparation method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides a negative ion purification liquid for formaldehyde removal and air purification, which comprises, by mass percentage, 20% natural plant extract, 10-15% negative ion cellulose, 3-5% nano hexacyclotetrasilver, 4-5% rare earth stone, and 55-60% deionized water, wherein the natural plant extract is an extract of coniferous plant leaves.

[0011] As a preferred technical solution of the present invention, the coniferous plant is one or more of coconut trees, cacti, pine trees, cedars, podocarps, white pine, bald cypress, metasequoia, pond cypress and cryptomeria fortunei.

[0012] A method for preparing a negative ion purification liquid for formaldehyde removal and air purification comprises the following steps:

[0013] S1. Wash and drain the collected coniferous plant leaves, put them into an aluminum foil composite packaging bag, evacuate the bag and seal it, and perform ultra-high pressure treatment at a temperature of 5-30°C and a pressure of 300-500 MPa using water as a pressure medium, with a holding time of 10-15 min;

[0014] S2, taking out the coniferous plant leaves after the ultrahigh pressure treatment, putting them into 5-10 times the amount of distilled water, soaking them for 30-60 minutes, taking out the coniferous plant leaves after soaking and absorption, grinding them with stainless steel colloid to a leaf pulp with a fineness of 50-100 microns for later use;

[0015] S3, putting the above leaf pulp into 8 times the amount of 50%-70% ethanol, extracting it three times, the first time for 3 hours, the second time for 2.5 hours, the third time for 2 hours, the extraction temperature is maintained at 70°C, and the extract is collected after extraction;

[0016] S4, the above-collected extract was mixed with an ionic solution having a mass fraction of 10.45-55.56% at a mass ratio of 1:1-5, and then ultrasonic waves were transmitted at a frequency of 25-35KHz and a power density of 0.10-0.50W / cm 2 , ultrasonic treatment at a temperature of 25-45°C for 5-30 minutes;

[0017] S5, subjecting the ultrasonically treated extract to three stages of centrifugation, the first stage at 500-1000 rpm for 3-5 min, the second stage at 1500-2000 rpm for 5-8 min, and the third stage at 2000-3000 rpm for 5-8 min, to remove impurities in the extract, and collecting the lower layer of the aqueous substance in the centrifuge tube, which is the natural plant extract;

[0018] S6. Put the above-mentioned natural plant extract, anion cellulose, nano hexacyclic stone, rare crystal stone and deionized water according to the mass percentage into a blender and mix and stir at 300 rpm for 1-3 minutes to obtain the anion purification liquid.

[0019] As a preferred technical solution of the present invention, the ethanol used for the extraction in step S3 is recovered by vacuum evaporation under the conditions of a water bath temperature of 60°C, a rotary evaporator speed of 80 rpm, a vacuum degree of 100 bar, a circulating refrigerator temperature of -10°C, and a pressure of 1 bar.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention aims to improve the durability, instability, cumbersome use, inability to completely decompose formaldehyde and improve the air environment of formaldehyde removal and air purification products currently on the market by compounding their functions. Plant extracts are extracted from herbs using plant extraction technology. The plant extracts are modified and processed to synthesize plant essences that can ionize and release small-particle negative oxygen ions. The plant essences are then composited and implanted into a series of products through a mixing process to achieve the effect of plant ionization and release of negative oxygen ions. The diffuse fluidity of air is used to purify the air. The products have anti-(inhibitory) bacteria, formaldehyde removal, sterilization, and deodorization functions, creating a clean, healthy, and health-preserving living and working space.

[0022] The principle of generating negative oxygen ions is to utilize the mechanism of ionization of gas molecules in the air, mainly utilizing the result of the effect of external ionizers on the gas. Ionizers include ultraviolet rays, radiation, photoelectric effect, etc., and the raw materials have the effect of ionizers (i.e. plant energy). The components have thermoelectricity and piezoelectricity. Therefore, when there are changes in temperature and pressure (even small changes), it can cause an electric potential difference between the component crystals. This static electricity is as high as 1 million electron volts, thereby ionizing the air. The struck electrons attach to nearby water and oxygen molecules and convert them into negative air ions, i.e. negative oxygen ions.

[0023] (2) The negative ion purification liquid of the present invention can effectively release 2000 / cm when sprayed on the wall or adsorbable fabric and leather surface. 3 The above negative oxygen ions can naturally purify harmful gases such as formaldehyde, toluene, TVOC, etc. in the air 24 hours a day, and have antibacterial and antimicrobial effects. They do not require additional energy consumption, are energy-efficient, and are green and environmentally friendly. No harmful gas substances are produced during the process. They can effectively improve the air quality of the living environment, achieve a natural ecological level of fresh air for the living environment, and have certain health and immunity-enhancing effects on the body. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] Example 1

[0026] This embodiment provides a method for preparing a negative ion purification liquid for formaldehyde removal and air purification, comprising the following steps:

[0027] S1. Wash and drain the collected pine needles, put them into an aluminum foil composite packaging bag, evacuate the bag and seal it, and use water as a pressure medium to perform ultra-high pressure treatment at a temperature of 5-30°C and a pressure of 300-500 MPa for 10-15 minutes;

[0028] S2, taking out the pine needles after the ultrahigh pressure treatment, putting them into 5-10 times the amount of distilled water, soaking for 30-60 minutes, taking out the pine needles after soaking and absorption, grinding them with stainless steel colloid to a pine needle pulp with a fineness of 50-100 microns for later use;

[0029] S3, putting the pine needle pulp into 8 times the amount of 50%-70% ethanol, extracting it three times, the first time for 3 hours, the second time for 2.5 hours, the third time for 2 hours, the extraction temperature is maintained at 70°C, and the extract is collected after extraction;

[0030] S4, the above-collected extract was mixed with an ionic solution having a mass fraction of 10.45-55.56% at a mass ratio of 1:1-5, and then ultrasonic waves were transmitted at a frequency of 25-35KHz and a power density of 0.10-0.50W / cm 2 , ultrasonic treatment at a temperature of 25-45°C for 5-30 minutes;

[0031] S5, subjecting the ultrasonically treated extract to three stages of centrifugation, the first stage at 500-1000 rpm for 3-5 min, the second stage at 1500-2000 rpm for 5-8 min, and the third stage at 2000-3000 rpm for 5-8 min, to remove impurities in the extract, and collecting the lower layer of the aqueous substance in the centrifuge tube, which is the natural plant extract;

[0032] S6. According to the mass percentage, 20% natural plant extract, 10% anion cellulose, 5% nano hexacyclotetrasilica, 5% rare crystal stone, and 55-60% deionized water are put into a blender and mixed at 300 rpm for 1-3 minutes to obtain the anion purification liquid.

[0033] Example 2

[0034] The negative ion purification liquid was prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid included: 20% plant extract, 15% negative ion cellulose, 3% nano hexacyclolith, 58% deionized water, and 4% rare earth stone.

[0035] Example 3

[0036] The negative ion purification liquid was prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid included: 15% plant extract, 5% negative ion cellulose, 2% nano hexacyclolith, 75% deionized water, and 3% rare crystal stone.

[0037] Example 4

[0038] The negative ion purification liquid was prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid included: 10% plant extract, 2% negative ion cellulose, 2% nano hexacyclolith, 84% deionized water, and 2% rare crystal stone.

[0039] Example 5

[0040] The negative ion purification liquid was prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid included: 5% plant extract, 5% negative ion cellulose, 1% nano hexacyclolith, 88% deionized water, and 1% rare crystal stone.

[0041] Test Example 1

[0042] The formaldehyde purification rate and formaldehyde purification durability of the negative ion purification liquid prepared in Examples 1-5 were tested using the "JC / T 1074-2021 Purification Performance of Indoor Air Purification Functional Coating Materials" standard. The specific test data are shown in Table 1.

[0043] Test Example 2

[0044] The negative ion purification liquids prepared in Examples 1-5 were tested for the amount of negative ions induced by air using the standard "HG / T 4109-2009 Negative Ion Functional Coatings". The specific test data are shown in Table 1.

[0045] Test Example 3

[0046] The negative ion purification liquid prepared in Examples 1-5 was tested for antibacterial rates against Escherichia coli and Staphylococcus aureus using the standard "HG / T 3950-2007 Antibacterial Coatings". Specific test data are shown in Table 1.

[0047] Table 1 Test data table for test cases 1-3

[0048]

[0049] It can be seen from the test results that as the mass percentage of natural plant extract and negative ion cellulose in the negative ion purification liquid prepared by the present invention decreases, the amount of negative oxygen ion induced is significantly reduced, the air purification effect is reduced, the formaldehyde purification effect is also reduced, and the antibacterial effect is also reduced.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A negative ion purification liquid for removing formaldehyde and purifying air, characterized in that: According to the percentage by mass, the invention comprises: 20% natural plant extract, 10-15% anion cellulose, 3-5% nano hexacyclosite, 4-5% rare earth stone and 55-60% deionized water, wherein the natural plant extract is an extract of coniferous plant leaves.

2. The negative ion purification liquid for removing formaldehyde from air according to claim 1, characterized in that: The coniferous plant is one or more of coconut trees, cacti, pine trees, cedars, podocarps, white pine, bald cypress, metasequoia, pond cypress and cryptomeria fortunei.

3. A method for preparing a negative ion purification liquid for formaldehyde removal and air purification, comprising the following steps: S1. Wash and drain the collected coniferous plant leaves, put them into an aluminum foil composite packaging bag, evacuate the bag and seal it, and perform ultra-high pressure treatment at a temperature of 5-30°C and a pressure of 300-500 MPa using water as a pressure medium, with a holding time of 10-15 min; S2, taking out the coniferous plant leaves after the ultrahigh pressure treatment, putting them into 5-10 times the amount of distilled water, soaking them for 30-60 minutes, taking out the coniferous plant leaves after soaking and absorption, grinding them with stainless steel colloid to a leaf pulp with a fineness of 50-100 microns for later use; S3, putting the above leaf pulp into 8 times the amount of 50%-70% ethanol, extracting it three times, the first time for 3 hours, the second time for 2.5 hours, the third time for 2 hours, the extraction temperature is maintained at 70°C, and the extract is collected after extraction; S4, the above-collected extract was mixed with an ionic solution having a mass fraction of 10.45-55.56% at a mass ratio of 1:1-5, and then ultrasonic waves were transmitted at a frequency of 25-35KHz and a power density of 0.10-0.50W / cm 2 , ultrasonic treatment at a temperature of 25-45°C for 5-30 minutes; S5, subjecting the ultrasonically treated extract to three stages of centrifugation, the first stage at 500-1000 rpm for 3-5 min, the second stage at 1500-2000 rpm for 5-8 min, and the third stage at 2000-3000 rpm for 5-8 min, to remove impurities in the extract, and collecting the lower layer of the aqueous substance in the centrifuge tube, which is the natural plant extract; S6. Put the above-mentioned natural plant extract, anion cellulose, nano hexacyclic stone, rare crystal stone and deionized water according to the mass percentage into a blender and mix and stir at 300 rpm for 1-3 minutes to obtain the anion purification liquid.

4. The method for preparing a negative ion purification liquid for formaldehyde removal and air purification according to claim 3, characterized in that: The ethanol used for the extraction in step S3 is recovered by vacuum evaporation under the conditions of a water bath temperature of 60° C., a rotary evaporator speed of 80 rpm, a vacuum degree of 100 bar, a circulating refrigerator temperature of −10° C., and a pressure of 1 bar.

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