Gas purification solution based on quantum photocatalytic material

Abstract

The invention discloses a gas purification solution based on a quantum photocatalytic material, which is prepared from the following raw materials in parts by weight: 30 to 40 parts of methyl methacrylate, 40 to 50 parts of butyl acrylate, 8 to 10 parts of acrylic acid, 10 to 15 parts of hydroxyethyl methylacrylate, 2 to 5 parts of modified additive, 5 to 10 parts of functional filler and 110 to 130 parts of deionized water, the polyaniline chain segment can be used as an electron transport medium to promote migration of photo-induced electrons so as to improve the purification effect of the solution, the carbon quantum dots loaded on the functional filler can effectively promote separation of the photo-induced electrons and holes, so that the photocatalytic efficiency is improved, carrier migration can be promoted under doping of sulfur, nitrogen and metal cobalt, and the photocatalytic efficiency is improved. Furthermore, the forbidden band width of titanium dioxide can be effectively reduced, so that the titanium dioxide has higher light absorption capacity in a visible light region, and the photocatalytic effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photocatalytic purification solution preparation, and specifically relates to a gas purification solution based on quantum photocatalytic materials. Background Art

[0002] In today's rapidly developing technological era, people have higher and higher requirements for the indoor environmental quality. With the improvement of living standards, people have higher expectations for the comfort of living and working environments, especially paying attention to air quality and health safety. Environmental pollution problems such as harmful substances like formaldehyde, as well as bacteria and odors, seriously threaten human health. Traditional treatment methods such as ventilation, activated carbon adsorption, chemical reagents, etc., although can improve the environment to a certain extent, have disadvantages such as incomplete effect, easy to produce secondary pollution, and short duration. Quantum photocatalytic technology uses light energy to excite the catalyst, enabling it to effectively decompose harmful substances under light conditions, with characteristics such as high efficiency, environmental protection, and no secondary pollution. However, existing technologies are often limited to specific environments or application scenarios, with insufficient wide adaptability. For special environments, such as enclosed spaces, places with relatively serious pollution, etc., there is an urgent need to develop more efficient and comprehensive solutions for formaldehyde removal, bacteria removal, and odor removal. Summary of the Invention

[0003] The purpose of the present invention is to provide a gas purification solution based on quantum photocatalytic materials, which solves the problem of low efficiency of the current gas purification solution in decomposing using light.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A gas purification solution based on quantum photocatalytic materials is prepared by the following steps: Step A1: Mix the modified filler, citric acid, urea, and deionized water evenly, and carry out a hydrothermal reaction at a temperature of 200 - 220 °C for 8 - 10 h to obtain a functional filler. Mix 4-nitrophenol, potassium carbonate, and dichloromethane evenly, stir and add fumaroyl chloride at a rotation speed of 150 - 200 r / min and a temperature of 3 - 5 °C, and raise the temperature to 25 - 30 °C for reaction for 6 - 8 h to obtain an intermediate.

[0005] Step A2: Mix the intermediate, palladium-carbon catalyst, triethylamine, and toluene evenly, introduce hydrogen to maintain a pressure of 0.5 - 1 MPa, and carry out a reaction at a rotation speed of 120 - 150 r / min and a temperature of 40 - 50 °C for 3 - 5 h to obtain a modified monomer. Mix 2-aminobenzenesulfonic acid and hydrochloric acid solution evenly, stir and add the modified monomer, aniline, and ammonium persulfate at a rotation speed of 150 - 200 r / min and a temperature of 3 - 5 °C for reaction for 4 - 6 h to obtain a modified additive; Step A3: Weigh the following raw materials in parts by weight: 30 - 40 parts of methyl methacrylate, 40 - 50 parts of butyl acrylate, 8 - 10 parts of acrylic acid, 10 - 15 parts of hydroxyethyl methacrylate, 2 - 5 parts of a modified additive, 5 - 10 parts of a functional filler, and 110 - 130 parts of deionized water. Mix the raw materials evenly to obtain a gas purification solution based on a quantum photocatalytic material.

[0006] Further, the mass ratio of the modified filler, citric acid, and urea described in Step A1 is 1:5:1.5, and the molar ratio of 4 - nitrophenol, potassium carbonate, and fumaroyl chloride is 2:2.1:1.

[0007] Further, the dosage ratio of the intermediate, palladium - carbon catalyst, triethylamine, and toluene described in Step A2 is 5 mmol:200 mg:1 mg:60 mL, and the dosage ratio of 2 - aminobenzenesulfonic acid, hydrochloric acid solution, modified monomer, aniline, and ammonium persulfate is 10 mmol:50 mL:2 mmol:90 mmol:110 mmol. The mass fraction of the hydrochloric acid solution is 7%.

[0008] Further, the modified filler is prepared by the following steps: Step B1: Mix cobalt nitrate hexahydrate, 3 - amino - 5 - mercapto - 1,2,4 - triazole, DMF, and ethylene glycol evenly. Under the conditions of a rotation speed of 150 - 200 r / min and a temperature of 20 - 25 °C, stir for 15 - 20 min, then raise the temperature to 180 - 185 °C and keep the temperature for 8 - 10 h to obtain a cobalt organic framework. Disperse graphene in ethanol, under the conditions of a rotation speed of 200 - 300 r / min and a temperature of 60 - 70 °C, stir and add KH570 and deionized water, and react for 2 - 3 h to obtain modified graphene. Step B2: Mix the modified graphene, cobalt organic framework, benzophenone, and toluene evenly. Under the conditions of a rotation speed of 200 - 300 r / min, a temperature of 20 - 25 °C, and 365 nm ultraviolet light irradiation, react for 10 - 15 min to obtain a composite material. Mix the composite material, isocyanatopropyltriethoxysilane, and DMF, introduce nitrogen protection, and under the conditions of a rotation speed of 120 - 150 r / min and a temperature of 40 - 50 °C, react for 2 - 3 h to obtain a precursor. Step B3: Mix the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, and ethanol evenly. Under the conditions of a rotation speed of 150 - 200 r / min and a temperature of 65 - 70 °C, stir and add deionized water and hydrochloric acid solution. After reacting for 1 - 1.5 h, add tetrabutyl titanate and continue to react for 3 - 4 h. Then raise the temperature to 120 - 125 °C and continue to react for 30 - 40 min to obtain a modified precursor. Bake the modified precursor for 2 - 3 h under a nitrogen atmosphere condition at a temperature of 600 - 650 °C to obtain a modified filler.

[0009] Furthermore, the dosage ratio of cobalt nitrate hexahydrate, 3 - amino - 5 - mercapto - 1,2,4 - triazole, DMF, and ethylene glycol described in Step B1 is 1 mmol:1 mmol:10 mL:2 mL, and the dosage ratio of graphene, ethanol, KH570, and deionized water is 1 g:10 mL:1 mL:2 mL.

[0010] Furthermore, the mass ratio of the modified graphene and the cobalt organic framework described in Step B2 is 1:1, the dosage of benzophenone is 1% of the mass of the modified graphene, and the molar ratio of the amino group on the composite material and isocyanatopropyltriethoxysilane is 1:1.

[0011] Furthermore, the dosage ratio of the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, ethanol, deionized water, hydrochloric acid solution, and tetrabutyl titanate described in Step B3 is 5 g:14 mL:20 mL:80 mL:20 mL:2 mL:20 mL, and the mass fraction of the hydrochloric acid solution is 10%.

[0012] The beneficial effects of the present invention: A gas purification solution based on a quantum photocatalytic material disclosed by the present invention comprises the following raw materials: methyl methacrylate, butyl acrylate, acrylic acid, 2 - hydroxyethyl methacrylate, a modified additive, a functional filler, and deionized water. The functional filler uses the modified filler and citric acid as raw materials, and under the action of urea, carbon quantum dots are loaded on the gaps of the modified filler to obtain the functional filler.

[0013] The modified additive uses 4 - nitrophenol and fumaroyl chloride as raw materials. Under the action of potassium carbonate, the nitro group on 4 - nitrophenol reacts with the acyl chloride group on fumaroyl chloride to obtain an intermediate. The intermediate is reduced with a palladium - carbon catalyst under a hydrogen atmosphere to convert the nitro group on the intermediate into an amino group, obtaining a modified monomer. 2 - aminobenzenesulfonic acid, the modified monomer, and aniline are polycondensed to form a polyaniline structure containing sulfonic acid groups and double bonds, obtaining the modified additive.

[0014] The modified filler is prepared by a coordination reaction using cobalt nitrate hexahydrate and 3-amino-5-mercapto-1,2,4-triazole as raw materials to obtain a cobalt organic framework. Graphene is treated with KH570 to graft double bonds on the surface of graphene, obtaining modified graphene. The modified graphene and the cobalt organic framework are reacted so that the double bonds on the modified graphene react with the mercapto groups on the cobalt organic framework to obtain a composite material. The composite material is treated with isocyanatopropyltriethoxysilane so that the amino groups on the composite material react with the isocyanate groups on isocyanatopropyltriethoxysilane to obtain a precursor. The precursor, dimethyldimethoxysilane, methyltrimethoxysilane, and tetrabutyl titanate are hydrolyzed and condensed to obtain a modified precursor. The modified precursor is calcined in a nitrogen atmosphere to obtain the modified filler.

[0015] The modified additive contains a polystyrene structure, so that the formed polyacrylate chain segment contains a polystyrene chain segment. The polystyrene chain segment can act as an electron transport medium to promote the migration of photo-generated electrons, thereby increasing the purification effect of the solution. Loading carbon quantum dots on the functional filler can effectively promote the separation of photo-generated electrons and holes, thereby improving the photocatalytic efficiency. During the calcination process, the cobalt organic framework in the modified precursor forms a carbon material containing sulfur, nitrogen, and metallic cobalt, and the titanium-containing polysiloxane forms silica containing titanium dioxide. Doped with sulfur, nitrogen, and metallic cobalt, it can promote the migration of carriers, thereby inhibiting electron-hole recombination, and can effectively reduce the band gap of titanium dioxide, making it have higher light absorption ability in the visible light region and improving the photocatalytic effect. Specific Embodiments

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0017] Example 1. A gas purification solution based on a quantum photocatalytic material is prepared by the following steps: Step A1: The modified filler, citric acid, urea, and deionized water are mixed evenly and hydrothermally reacted at a temperature of 200 °C for 8 h to obtain a functional filler. 4-Nitrophenol, potassium carbonate, and dichloromethane are mixed evenly, stirred at a rotation speed of 150 r / min and a temperature of 3 °C, and fumaroyl chloride is added, and the temperature is raised to 25 °C for reaction for 6 h to obtain an intermediate.

[0018] Step A2: Mix the intermediate, palladium-carbon catalyst, triethylamine, and toluene evenly, introduce hydrogen to maintain a pressure of 0.5 MPa, and react for 3 h under the conditions of a rotation speed of 120 r / min and a temperature of 40 °C to obtain a modified monomer. Mix 2-aminobenzenesulfonic acid and hydrochloric acid solution evenly, and under the conditions of a rotation speed of 150 r / min and a temperature of 3 °C, stir and add the modified monomer, aniline, and ammonium persulfate, and react for 4 h to obtain a modified additive; Step A3: Weigh the following raw materials in parts by weight: 30 parts of methyl methacrylate, 40 parts of butyl acrylate, 8 parts of acrylic acid, 10 parts of 2-hydroxyethyl methacrylate, 2 parts of modified additive, 5 parts of functional filler, and 110 parts of deionized water. Mix the raw materials evenly to obtain a gas purification solution based on quantum photocatalytic materials.

[0019] The mass ratio of the modified filler, citric acid, and urea described in Step A1 is 1:5:1.5, and the molar ratio of 4-nitrophenol, potassium carbonate, and fumaroyl chloride is 2:2.1:1.

[0020] The dosage ratio of the intermediate, palladium-carbon catalyst, triethylamine, and toluene described in Step A2 is 5 mmol: 200 mg: 1 mg: 60 mL, and the dosage ratio of 2-aminobenzenesulfonic acid, hydrochloric acid solution, modified monomer, aniline, and ammonium persulfate is 10 mmol: 50 mL: 2 mmol: 90 mmol: 110 mmol. The mass fraction of the hydrochloric acid solution is 7%.

[0021] The modified filler is prepared by the following steps: Step B1: Mix cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol evenly, and under the conditions of a rotation speed of 150 r / min and a temperature of 20 °C, stir for 15 min, heat up to 180 °C, and keep warm for 8 h to obtain a cobalt organic framework. Disperse graphene in ethanol, and under the conditions of a rotation speed of 200 r / min and a temperature of 60 °C, stir and add KH570 and deionized water, and react for 2 h to obtain modified graphene; Step B2: Mix the modified graphene, cobalt organic framework, benzophenone, and toluene evenly, and under the conditions of a rotation speed of 200 r / min, a temperature of 20 °C, and irradiation with 365 nm ultraviolet light, react for 10 min to obtain a composite material. Mix the composite material, isocyanatopropyltriethoxysilane, and DMF, introduce nitrogen protection, and under the conditions of a rotation speed of 120 r / min and a temperature of 40 °C, react for 2 h to obtain a precursor; Step B3: Mix the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, and ethanol evenly. Under the conditions of a rotation speed of 150 r / min and a temperature of 65 °C, stir and add deionized water and hydrochloric acid solution. After reacting for 1 h, add tetrabutyl titanate and continue to react for 3 h. Raise the temperature to 120 °C and continue to react for 30 min to obtain a modified precursor. Calcinate the modified precursor under a nitrogen atmosphere at a temperature of 600 °C for 2 h to obtain a modified filler.

[0022] The dosage ratio of cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol described in Step B1 is 1 mmol: 1 mmol: 10 mL: 2 mL, and the dosage ratio of graphene, ethanol, KH570, and deionized water is 1 g: 10 mL: 1 mL: 2 mL.

[0023] The mass ratio of the modified graphene and cobalt organic framework described in Step B2 is 1:1. The dosage of benzophenone is 1% of the mass of the modified graphene. The molar ratio of amino groups on the composite material and isocyanatopropyltriethoxysilane is 1:1.

[0024] The dosage ratio of the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, ethanol, deionized water, hydrochloric acid solution, and tetrabutyl titanate described in Step B3 is 5 g: 14 mL: 20 mL: 80 mL: 20 mL: 2 mL: 20 mL. The mass fraction of the hydrochloric acid solution is 10%.

[0025] Example 2. The gas purification solution based on the quantum photocatalytic material is prepared by the following steps: Step A1: Mix the modified filler, citric acid, urea, and deionized water evenly. Under the condition of a temperature of 210 °C, carry out hydrothermal reaction for 9 h to obtain a functional filler. Mix 4-nitrophenol, potassium carbonate, and dichloromethane evenly. Under the conditions of a rotation speed of 150 r / min and a temperature of 4 °C, stir and add fumaroyl chloride, and raise the temperature to 30 °C and react for 7 h to obtain an intermediate.

[0026] Step A2: Mix the intermediate, palladium-carbon catalyst, triethylamine, and toluene evenly. Introduce hydrogen to keep the pressure at 0.8 MPa. Under the conditions of a rotation speed of 150 r / min and a temperature of 45 °C, react for 4 h to obtain a modified monomer. Mix 2-aminobenzenesulfonic acid and hydrochloric acid solution evenly. Under the conditions of a rotation speed of 150 r / min and a temperature of 4 °C, stir and add the modified monomer, aniline, and ammonium persulfate, and react for 5 h to obtain a modified additive; Step A3: Weigh the following raw materials by weight parts: 35 parts of methyl methacrylate, 45 parts of butyl acrylate, 9 parts of acrylic acid, 13 parts of 2-hydroxyethyl methacrylate, 3.5 parts of modified additive, 8 parts of functional filler, and 120 parts of deionized water. Mix the raw materials evenly to obtain a gas purification solution based on quantum photocatalytic materials.

[0027] The mass ratio of the modified filler, citric acid, and urea described in Step A1 is 1:5:1.5, and the molar ratio of 4-nitrophenol, potassium carbonate, and fumaroyl chloride is 2:2.1:1.

[0028] The dosage ratio of the intermediate, palladium-carbon catalyst, triethylamine, and toluene described in Step A2 is 5 mmol: 200 mg: 1 mg: 60 mL, and the dosage ratio of 2-aminobenzenesulfonic acid, hydrochloric acid solution, modified monomer, aniline, and ammonium persulfate is 10 mmol: 50 mL: 2 mmol: 90 mmol: 110 mmol. The mass fraction of the hydrochloric acid solution is 7%.

[0029] The modified filler is prepared by the following steps: Step B1: Mix cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol evenly. Under the conditions of a rotation speed of 150 r / min and a temperature of 25 °C, stir for 15 min, then raise the temperature to 185 °C and keep it for 9 h to obtain cobalt organic framework. Disperse graphene in ethanol. Under the conditions of a rotation speed of 200 r / min and a temperature of 65 °C, stir and add KH570 and deionized water, and react for 3 h to obtain modified graphene. Step B2: Mix the modified graphene, cobalt organic framework, benzophenone, and toluene evenly. Under the conditions of a rotation speed of 200 r / min, a temperature of 25 °C, and 365 nm ultraviolet light irradiation, react for 10 min to obtain a composite material. Mix the composite material, isocyanatopropyltriethoxysilane, and DMF, introduce nitrogen protection, and under the conditions of a rotation speed of 150 r / min and a temperature of 45 °C, react for 2.5 h to obtain a precursor. Step B3: Mix the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, and ethanol evenly. Under the conditions of a rotation speed of 150 r / min and a temperature of 70 °C, stir and add deionized water and hydrochloric acid solution, react for 1.5 h, then add tetrabutyl titanate and continue to react for 3 h, raise the temperature to 125 °C, and continue to react for 35 min to obtain a modified precursor. Calcinate the modified precursor in a nitrogen atmosphere at a temperature of 630 °C for 3 h to obtain the modified filler.

[0030] The dosage ratio of cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol described in step B1 is 1 mmol: 1 mmol: 10 mL: 2 mL, and the dosage ratio of graphene, ethanol, KH570, and deionized water is 1 g: 10 mL: 1 mL: 2 mL.

[0031] The mass ratio of the modified graphene and the cobalt organic framework described in step B2 is 1:1, the dosage of benzophenone is 1% of the mass of the modified graphene, and the molar ratio of the amino group on the composite material and isocyanatopropyltriethoxysilane is 1:1.

[0032] The dosage ratio of the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, ethanol, deionized water, hydrochloric acid solution, and tetrabutyl titanate described in step B3 is 5 g: 14 mL: 20 mL: 80 mL: 20 mL: 2 mL: 20 mL, and the mass fraction of the hydrochloric acid solution is 10%.

[0033] Example 3, a gas purification solution based on a quantum photocatalytic material, is prepared by the following steps: Step A1: Mix the modified filler, citric acid, urea, and deionized water evenly, and carry out a hydrothermal reaction at a temperature of 220 °C for 10 h to obtain a functional filler. Mix 4-nitrophenol, potassium carbonate, and dichloromethane evenly, stir and add fumaroyl chloride at a rotation speed of 200 r / min and a temperature of 5 °C, and raise the temperature to 30 °C for a reaction of 8 h to obtain an intermediate.

[0034] Step A2: Mix the intermediate, palladium-carbon catalyst, triethylamine, and toluene evenly, introduce hydrogen to maintain a pressure of 1 MPa, and carry out a reaction at a rotation speed of 150 r / min and a temperature of 50 °C for 5 h to obtain a modified monomer. Mix 2-aminobenzenesulfonic acid and hydrochloric acid solution evenly, stir and add the modified monomer, aniline, and ammonium persulfate at a rotation speed of 200 r / min and a temperature of 5 °C, and carry out a reaction for 6 h to obtain a modified additive; Step A3: Weigh the following raw materials in parts by weight: 40 parts of methyl methacrylate, 50 parts of butyl acrylate, 10 parts of acrylic acid, 15 parts of 2-hydroxyethyl methacrylate, 5 parts of the modified additive, 10 parts of the functional filler, and 130 parts of deionized water. Mix the raw materials evenly to obtain a gas purification solution based on a quantum photocatalytic material.

[0035] The mass ratio of the modified filler, citric acid, and urea described in step A1 is 1:5:1.5, and the molar ratio of 4-nitrophenol, potassium carbonate, and fumaroyl chloride is 2:2.1:1.

[0036] The dosage ratio of the intermediate, palladium-carbon catalyst, triethylamine, and toluene described in step A2 is 5 mmol: 200 mg: 1 mg: 60 mL, and the dosage ratio of 2-aminobenzenesulfonic acid, hydrochloric acid solution, modified monomer, aniline, and ammonium persulfate is 10 mmol: 50 mL: 2 mmol: 90 mmol: 110 mmol. The mass fraction of the hydrochloric acid solution is 7%.

[0037] The modified filler described above is prepared by the following steps: Step B1: Mix cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol evenly, and under the conditions of a rotation speed of 200 r / min and a temperature of 25 °C, stir for 20 min, then raise the temperature to 185 °C and keep it warm for 10 h to obtain cobalt organic framework. Disperse graphene in ethanol, and under the conditions of a rotation speed of 300 r / min and a temperature of 70 °C, stir and add KH570 and deionized water, and react for 3 h to obtain modified graphene; Step B2: Mix the modified graphene, cobalt organic framework, benzophenone, and toluene evenly, and under the conditions of a rotation speed of 300 r / min, a temperature of 25 °C, and 365 nm ultraviolet light irradiation, react for 10 - 15 min to obtain a composite material. Mix the composite material, isocyanatopropyltriethoxysilane, and DMF, introduce nitrogen protection, and under the conditions of a rotation speed of 150 r / min and a temperature of 50 °C, react for 3 h to obtain a precursor; Step B3: Mix the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, and ethanol evenly, and under the conditions of a rotation speed of 200 r / min and a temperature of 70 °C, stir and add deionized water and hydrochloric acid solution, react for 1.5 h, then add tetrabutyl titanate and continue to react for 4 h, raise the temperature to 125 °C and continue to react for 40 min to obtain a modified precursor. Calcine the modified precursor in a nitrogen atmosphere at a temperature of 650 °C for 3 h to obtain the modified filler.

[0038] The dosage ratio of cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol described in step B1 is 1 mmol: 1 mmol: 10 mL: 2 mL, and the dosage ratio of graphene, ethanol, KH570, and deionized water is 1 g: 10 mL: 1 mL: 2 mL.

[0039] The mass ratio of the modified graphene and cobalt organic framework described in step B2 is 1:1, the dosage of benzophenone is 1% of the mass of the modified graphene, and the molar ratio of the amino group on the composite material and isocyanatopropyltriethoxysilane is 1:1.

[0040] The dosage ratio of the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, ethanol, deionized water, hydrochloric acid solution and tetrabutyl titanate described in step B3 is 5 g: 14 mL: 20 mL: 80 mL: 20 mL: 2 mL: 20 mL, and the mass fraction of the hydrochloric acid solution is 10%.

[0041] Comparative example 1: This comparative example is the same as example 1 except that no modified additive is added.

[0042] Comparative example 2: This comparative example is the same as example 1 except that the modified filler is used instead of the functional filler.

[0043] Comparative example 3: This comparative example is the same as example 1 except that the product prepared by mixing modified graphene, 3-mercaptopropyltrimethoxysilane, benzophenone and toluene evenly and reacting for 10 min under the conditions of a rotation speed of 200 r / min, a temperature of 20 °C and ultraviolet light irradiation at 365 nm is used instead of the precursor.

[0044] Comparative example 4: This comparative example is the same as example 1 except that no precursor is added.

[0045] The gas purification solutions prepared in comparative examples 1-3 and comparative examples 1-4 were irradiated with ultraviolet light in a 3 m 3 test chamber for 18 h according to the standard of QB / T2761-2006, and the gas concentration values before and after purification were detected. The removal rate was calculated. 100 μL of the prepared bacterial suspension was added dropwise to the gas purification solutions prepared in comparative examples 1-3 and comparative examples 1-4 and the control sample solution test tubes respectively, mixed evenly, irradiated with ultraviolet light at 365 nm for 20 min, then 0.5 mL of the sample solution was put into a test tube containing 5 mL of PBS buffer solution, mixed well, diluted appropriately, poured into petri dishes, cultured, and the viable bacterial colony count was performed to calculate the antibacterial rate. The test results are shown in Table 1 below.

[0046] Table 1 Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Formaldehyde removal rate % 96.2 97.8 98.3 79.4 82.1 75.8 63.5 TVOC removal rate % 95.9 97.5 98.1 77.7 80.7 72.4 61.1 Escherichia coli antibacterial rate % 99.2 99.6 99.8 88.5 91.2 84.7 78.1 Staphylococcus aureus antibacterial rate % 99.1 99.6 99.7 86.8 90.4 82.3 76.6 As can be seen from Table 1, the present application has good toxic gas removal effect and bactericidal effect.

[0047] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A gas purification solution based on a quantum photocatalytic material, characterized in that: It is made by the following steps: Step A1: Mix the modified filler, citric acid, urea and deionized water for hydrothermal reaction to obtain a functional filler. Mix 4-nitrophenol, potassium carbonate and dichloromethane, stir and add fumaroyl chloride for reaction to obtain an intermediate; Step A2: Mix the intermediate, palladium-carbon catalyst, triethylamine and toluene evenly, and carry out a reaction under a hydrogen atmosphere to obtain a modified monomer. Mix 2-aminobenzenesulfonic acid and hydrochloric acid solution, stir and add the modified monomer, aniline and ammonium persulfate for reaction to obtain a modified additive; Step A3: Weigh the following raw materials in parts by weight: 30-40 parts of methyl methacrylate, 40-50 parts of butyl acrylate, 8-10 parts of acrylic acid, 10-15 parts of 2-hydroxyethyl methacrylate, 2-5 parts of the modified additive, 5-10 parts of the functional filler and 110-130 parts of deionized water. Mix the raw materials evenly to obtain a gas purification solution based on quantum photocatalytic materials; The modified filler is obtained by reacting cobalt hexahydrate nitrate with 3-amino-5-mercapto-1,2,4-triazole to form a cobalt organic framework, then treating graphene with KH570 to obtain modified graphene, reacting the modified graphene with the cobalt organic framework to obtain a composite material, treating the composite material with isocyanatopropyltriethoxysilane to obtain a precursor, and hydrolyzing and condensing the precursor, dimethyldimethoxysilane, methyltrimethoxysilane and tetrabutyl titanate to obtain a modified precursor, and calcining the modified precursor to obtain the modified filler.

2. The gas purification solution based on the quantum photocatalytic material according to claim 1, wherein: In Step A1, the mass ratio of the modified filler, citric acid and urea is 1:5:1.5, and the molar ratio of 4-nitrophenol, potassium carbonate and fumaroyl chloride is 2:2.1:

1.

3. The gas purification solution based on quantum photocatalytic material according to claim 1, characterized in that: In Step A2, the dosage ratio of the intermediate, palladium-carbon catalyst, triethylamine and toluene is 5 mmol: 200 mg: 1 mg: 60 mL, and the dosage ratio of 2-aminobenzenesulfonic acid, hydrochloric acid solution, modified monomer, aniline and ammonium persulfate is 10 mmol: 50 mL: 2 mmol: 90 mmol: 110 mmol.

4. The gas purification solution based on the quantum photocatalytic material according to claim 1, characterized in that: The modified filler is made by the following steps: Step B1: Mix cobalt hexahydrate nitrate, 3-amino-5-mercapto-1,2,4-triazole, DMF and ethylene glycol, stir and process, then heat up and keep warm to obtain a cobalt organic framework. Disperse graphene in ethanol, stir and add KH570 and deionized water for reaction to obtain modified graphene; Step B2: React the modified graphene, cobalt organic framework, benzophenone and toluene to obtain a composite material. Mix the composite material, isocyanatopropyltriethoxysilane and DMF, and introduce nitrogen protection for reaction to obtain a precursor; Step B3: Mix the precursor, dimethyldimethoxysilane, methyltrimethoxysilane and ethanol, stir and add deionized water and hydrochloric acid solution, carry out a reaction, then add tetrabutyl titanate, continue the reaction, heat up and keep warm to obtain a modified precursor, and calcine the modified precursor under the condition of a nitrogen atmosphere at a temperature of 600-650 °C to obtain the modified filler.

5. The gas purification solution based on the quantum photocatalytic material according to claim 4, wherein: The dosage ratio of cobalt nitrate hexahydrate, 3-amino-5-mercapto-1,2,4-triazole, DMF, and ethylene glycol described in step B1 is 1 mmol: 1 mmol: 10 mL: 2 mL, and the dosage ratio of graphene, ethanol, KH570, and deionized water is 1 g: 10 mL: 1 mL: 2 mL.

6. The gas purification solution based on a quantum photocatalytic material according to claim 4, characterized in that: The mass ratio of the modified graphene and the cobalt organic framework described in step B2 is 1:1, and the molar ratio of the amino group on the composite material and isocyanatopropyltriethoxysilane is 1:

1.

7. The gas purification solution based on the quantum photocatalytic material according to claim 4, characterized in that: The dosage ratio of the precursor, dimethyldimethoxysilane, methyltrimethoxysilane, ethanol, deionized water, hydrochloric acid solution, and tetrabutyl titanate described in step B3 is 5 g: 14 mL: 20 mL: 80 mL: 20 mL: 2 mL: 20 mL.