WO2021136328A1 - 一种长余辉汽车尾气净化涂料及其制备方法和应用 - Google Patents
一种长余辉汽车尾气净化涂料及其制备方法和应用 Download PDFInfo
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- WO2021136328A1 WO2021136328A1 PCT/CN2020/141167 CN2020141167W WO2021136328A1 WO 2021136328 A1 WO2021136328 A1 WO 2021136328A1 CN 2020141167 W CN2020141167 W CN 2020141167W WO 2021136328 A1 WO2021136328 A1 WO 2021136328A1
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- gas purification
- exhaust gas
- long afterglow
- automobile exhaust
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- 238000000576 coating method Methods 0.000 title claims abstract description 50
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000454 talc Substances 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
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- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
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- 238000001035 drying Methods 0.000 abstract description 2
- 229910002915 BiVO4 Inorganic materials 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 63
- 238000012360 testing method Methods 0.000 description 24
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 22
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- 230000000052 comparative effect Effects 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 description 9
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 150000002430 hydrocarbons Chemical class 0.000 description 9
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 229910052797 bismuth Inorganic materials 0.000 description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 6
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 6
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
Definitions
- the invention belongs to the technical field of road engineering materials, and specifically relates to a long afterglow automobile tail gas purification coating, and a preparation method and application thereof.
- the present invention provides a long afterglow automobile exhaust purification coating and a preparation method and application thereof.
- Photocatalytic materials can be used in road pavement engineering to deal with air pollution, while using long afterglow materials , Can absorb light energy and continue to emit light in the dark or low light environment, so as to achieve all-weather purification of car exhaust, good purification efficiency, and provide night driving guidance.
- a preparation method of a composite photocatalytic tail gas purification material includes the following steps:
- the calcination temperature in the step 1a) is 550-580°C
- the calcination time is 3-4h
- the ultrasonic dispersion time in the step 3a) is 30-40min
- the ultrasonic power is 300-600W. .
- a composite photocatalytic tail gas purification material prepared by a method for preparing a composite photocatalytic tail gas purification material.
- the composite photocatalytic exhaust gas purification material includes the following materials in parts by mass: 35-45 parts of melamine, 25-30 parts of absolute ethanol, 20-25 parts of deionized water, 5-8 parts of tourmaline powder, and BiVO 4 8-12 servings.
- a long afterglow automobile exhaust purification coating prepared by a composite photocatalytic exhaust purification material including the following parts by mass: 20-26 parts of epoxy resin, 10-13 parts of epoxy resin diluent, 0.5 parts of defoamer, 2 parts -3 parts dispersant, 6-7 parts silane coupling agent, 2.5-3 parts talc powder, 2.5-3 parts calcium carbonate, 0.5 parts anti-settling agent fumed silica, 15 parts luminous powder, 5-20 parts composite light Catalytic exhaust gas purification material, 9-10 parts of film-forming aid alcohol ester twelve, 10-13 parts of epoxy resin curing agent and 1 part of defoamer.
- a preparation method of long afterglow automobile exhaust gas purification coating includes the following steps:
- step 2b) Add talc and calcium carbonate to step 1b) and stir;
- step 2b continue to add anti-settling agent fumed silica, luminescent powder, composite photocatalytic exhaust gas purification material, film-forming assistant alcohol ester twelve and epoxy resin curing agent, and stir;
- step 4b Drop the defoamer into step 3b), adjust the PH value, and stir to obtain the long afterglow automobile exhaust purification paint.
- step 2b the mass ratio of talc and calcium carbonate is 1:1.
- step 4b the pH is adjusted to 8-9 by ammonia water.
- the long afterglow automobile exhaust purification paint when applied on the road surface, it can continue to emit light in a dark or low light environment, so as to realize all-weather purification of automobile exhaust.
- the composite photocatalytic exhaust gas purification material prepared by the present invention utilizes the visible light activity and high light absorption rate of gC 3 N 4 , the preparation process is simple and recyclable, and bismuth vanadate (BiVO 4 ) and gC 3 N 4
- the heterojunction formed by the composite helps to improve the photocatalytic degradation efficiency.
- Tourmaline powder can improve the adsorption capacity of the composite photocatalytic exhaust gas purification material and the absorbance of the composite photocatalytic exhaust gas purification material, thereby greatly increasing the coating effect. Purification efficiency of car exhaust. Meanwhile, gC 3 N 4 / BiVO 4 / electric composite powder photocatalytic material is produced automobile exhaust purification pollution substances, polluting substances have no effect on surrounding roads and soil and water quality.
- the road-use long afterglow automobile exhaust gas purification coating uses the film-forming assistant alcohol ester twelve, gC 3 N 4 /BiVO 4 /tourmaline powder composite photocatalytic material, luminescent powder, talc powder, and anti-settling agent gas phase Silica, silane coupling agent and epoxy resin diluent, etc. have a comprehensive effect, play the characteristics of each material, and form a road coating material with good road performance, strong adhesion to the road surface, and good weather resistance. , And the made paint can restore the purification efficiency of car exhaust through rain water and regular sprinkling.
- the luminescent powder used in the road long afterglow automobile exhaust purification paint prepared by the present invention is a high-performance luminescent powder.
- the high-performance luminescent powder can be used for driving on roads with no street lights or insufficient lighting. Provide guidance to ensure traffic safety, and high-performance luminescent powder can provide reaction conditions for photocatalytic degradation of automobile exhaust.
- the road-use long afterglow automobile exhaust purification paint prepared by the present invention has low raw material cost and simple preparation process.
- the coating on the road surface will not reduce the anti-skid function of the road surface, and the coating has an all-weather service cycle and is effective on the road surface.
- the characteristics of strong adhesion and good weather resistance, and the coating material (paint) can be used in some specific scenes and other road ancillary facilities, and the application prospect is good.
- Figure 1 is a schematic diagram of the composite photocatalytic exhaust gas purification material prepared in Example 1;
- Example 2 is a scanning electron micrograph of the composite photocatalytic exhaust gas purification material prepared in Example 1;
- Figure 3 shows the results of the purification effect of three materials on HC in Comparative Experiment 1;
- Figure 4 shows the results of the CO purification effect of the three materials in Comparative Experiment 1;
- Figure 5 is a graph of the experimental results of the purification effect of three materials on NO in Comparative Experiment 1.
- the preparation method of the composite photocatalytic exhaust gas purification material includes the following steps:
- the gC 3 N 4 /BiVO 4 /tourmaline powder composite photocatalytic exhaust gas purification material prepared in this example is shown in FIG. 1 for the preparation principle.
- the composite photocatalytic exhaust gas purification material prepared in the example is scanned by electron microscope, and the results are shown in FIG. 2.
- harmful oxides refer to NO and CO
- organic pollutants refer to HC.
- the heterojunction formed by the combination of bismuth vanadate (BiVO 4 ) and gC 3 N 4 helps to improve the efficiency of photocatalytic degradation.
- Tourmaline powder can improve the adsorption capacity and adsorption capacity of the coating made of composite photocatalytic exhaust gas purification materials on automobile exhaust. The absorbance of the composite photocatalytic exhaust gas purification material greatly increases the purification efficiency of the paint for automobile exhaust gas.
- the preparation method of the composite photocatalytic exhaust gas purification material includes the following steps:
- the preparation method of the composite photocatalytic exhaust gas purification material includes the following steps:
- the long afterglow automobile exhaust purification coating includes the following steps:
- the long afterglow automobile exhaust purification coating includes the following steps:
- the long afterglow automobile exhaust purification coating includes the following steps:
- the long afterglow automobile exhaust purification coating includes the following steps:
- Comparative group 1 gC 3 N 4 /BiVO 4 composite material
- Comparative group 2 gC 3 N 4 material
- comparative group 1 preparation method of gC 3 N 4 /BiVO 4 composite material:
- Comparative test process The materials in the experimental group, comparison group 1 and comparison group 2 of the same quality were uniformly painted on the surface of the rut board (dimensions 300mm ⁇ 300mm ⁇ 50mm) formed indoors, and tested under visible light. Purification effect of HC, CO and NO. The results are shown in Figure 3, Figure 4, and Figure 5, respectively.
- the composite photocatalytic exhaust gas purification material of gC 3 N 4 /BiVO 4 /tourmaline powder prepared in this embodiment has a good ability to purify NO in automobile exhaust gas.
- the self-made automobile exhaust test device was tested in the oxidation blank group (there is no in the test device). Place the rut plate sample coated with purification material); the blank test is performed three times and the average value is taken. The test environment temperature is 25( ⁇ 2)°C, and the test device is shaded. The test results are shown in Table 1 below.
- the long afterglow automobile exhaust purification paint prepared by the present invention is used to purify automobile exhaust, and the comparison with the blank group shows that the long afterglow automobile exhaust purification coating prepared by the present invention has a good purification effect on automobile exhaust.
- the long afterglow tail gas purification paint prepared in Example 4 was evenly painted on the surface of the rut board (the size is 300mm ⁇ 300mm ⁇ 50mm) formed indoors, and the purification efficiency of the car exhaust gas under the condition of no light and visible light was tested, minus The average value of the purification efficiency of the blank group on automobile exhaust, and the purification rate of the long afterglow exhaust purification coating prepared in Example 4 on automobile exhaust was calculated. The results are shown in Table 2 below.
- the long afterglow tail gas purification paint prepared in Example 5 was evenly painted on the surface of the rut board (the size is 300mm ⁇ 300mm ⁇ 50mm) formed indoors, and its purification efficiency on automobile exhaust gas under the condition of no light and visible light was tested. The average value of the purification efficiency of the blank group on the automobile exhaust was removed, and the purification rate of the automobile exhaust by the long afterglow exhaust purification coating prepared in Example 5 was calculated. The results are shown in Table 3 below.
- the long afterglow tail gas purification paint prepared in Example 6 was evenly painted on the surface of the rut board (the size is 300mm ⁇ 300mm ⁇ 50mm) formed indoors, and the purification efficiency of the car exhaust gas under the condition of no light and visible light was tested, minus The average value of the purification efficiency of the blank group on automobile exhaust, and the purification rate of the long afterglow exhaust purification coating prepared in Example 6 on automobile exhaust was calculated. The results are shown in Table 4 below.
- the long afterglow exhaust gas purification paint prepared in Example 7 was evenly painted on the surface of the rut board (the size is 300mm ⁇ 300mm ⁇ 50mm) formed indoors, and the purification efficiency of the automobile exhaust gas under the condition of no light and visible light was tested, minus The average value of the purification efficiency of the blank group on automobile exhaust, and the purification rate of the long afterglow exhaust purification coating prepared in Example 4 on automobile exhaust was calculated. The results are shown in Table 5 below.
- the long afterglow tail gas purification coating After deducting the effect of the blank group, the long afterglow tail gas purification coating has a high purification efficiency for automobile exhaust under dark and visible light conditions.
- the results are obtained based on the different ratios of long afterglow materials and photocatalytic tail gas purification materials Different long-afterglow tail gas purification coatings, as the mass ratio of photocatalytic tail gas purification materials in the long-afterglow tail gas purification coatings increase, the tail gas purification efficiency is also improved; in particular, the long-afterglow tail gas purification coatings prepared in Example 7 are more effective for HC and CO
- the maximum purification efficiencies of NO and NO in 60 minutes can reach 13.68%, 17.39% and 57.16%, respectively, indicating that the photocatalytic exhaust purification material prepared by the present invention and the long afterglow exhaust purification coating prepared based on the photocatalytic exhaust purification material have a great effect on automobile exhaust. Good purification effect.
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Abstract
Description
汽车尾气主 | 60分钟前后浓度差值 | 平均值 |
要成分 | 测试1 | 测试2 | 测试3 | |
HC(ppm) | 60 | 54 | 56 | 56.67 |
CO(%) | 0.53 | 0.52 | 0.52 | 0.52 |
NO(ppm) | 29 | 31 | 29 | 29.67 |
汽车尾气主要 | 60分钟净化效率(%) |
成分 | 黑暗 | 可见光 |
HC | 5.06 | 13.68 |
CO | 5.83 | 17.39 |
NO | 22.68 | 57.16 |
Claims (10)
- 一种复合光催化尾气净化材料的制备方法,其特征在于,包括以下步骤:1a)将三聚氰胺经煅烧、冷却后得到淡黄色g-C 3N 4固体;2a)将得到的g-C 3N 4固体,经研磨后形成细粉状g-C 3N 4;3a)在室温下,将得到的细粉状g-C 3N 4、电气石粉和BiVO 4溶于乙醇-水溶液中,进行超声分散处理得到分散混合物;4a)将经超声分散得到的分散混合物,搅拌得到深绿色溶液;5a)将得到的深绿色溶液,干燥后得到深绿色固体;6a)将得到的深绿色固体,经研磨后得到复合光催化尾气净化材料g-C 3N 4/BiVO 4/电气石粉。
- 根据权利要求1所述的复合光催化尾气净化材料的制备方法,其特征在于,所述步骤1a)中煅烧温度为550-580℃,煅烧时间为3-4h;所述步骤3a)中超声功率为300-600W,超声分散时间为30-40min。
- 一种如权利要求1所述的复合光催化尾气净化材料的制备方法所制备的复合光催化尾气净化材料。
- 根据权利要求3所述的复合光催化尾气净化材料,其特征在于,所述复合光催化尾气净化材料包括以下质量份的各物料:三聚氰胺35-45份、无水乙醇25-30份、去离子水20-25份、电气石粉5-8份以及BiVO 48-12份。
- 一种采用权利要求3所述的复合光催化尾气净化材料制备的长余辉汽车尾气净化涂料,其特征在于,所述长余辉汽车尾气净化涂料包括以下质量份的各物料:20-26份环氧树脂、10-13份环氧树脂稀释剂、0.5份消泡剂、2-3份分散剂、6-7份硅烷偶联剂、2.5-3份滑石粉、2.5-3份碳酸钙、0.5份防沉剂气相二氧化硅、15份发光粉、5-20份复合光催化尾气净化材料、9-10份 成膜助剂醇酯十二、10-13份环氧树脂固化剂和1份消泡剂。
- 一种如权利要求5所述的长余辉汽车尾气净化涂料的制备方法,其特征在于,所述长余辉汽车尾气净化涂料的制备方法包括以下步骤:1b)将环氧树脂、环氧树脂稀释剂、消泡剂、分散剂以及硅烷偶联剂,搅拌;2b)向步骤1b)中再加入滑石粉和碳酸钙,搅拌;3b)向步骤2b)中继续加入防沉剂气相二氧化硅,发光粉,复合光催化尾气净化材料,成膜助剂醇酯十二和环氧树脂固化剂,搅拌;4b)向步骤3b)中滴入消泡剂,并调节PH值,搅拌后得到长余辉汽车尾气净化涂料。
- 根据权利要求6所述的长余辉汽车尾气净化涂料的制备方法,其特征在于,步骤2b)滑石粉和碳酸钙的质量比为1:1。
- 根据权利要求6所述的长余辉汽车尾气净化涂料的制备方法,其特征在于,步骤4b)中通过氨水调节PH为8-9。
- 一种如权利要求5所述的长余辉汽车尾气净化涂料在路面上的应用。
- 根据权利要求9所述的长余辉汽车尾气净化涂料在路面上的应用,其特征在于:所述长余辉汽车尾气净化涂料在路面应用时,能在黑暗或弱光环境下继续发光,实现对汽车尾气的全天候净化。
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