CN111974156A - 一种高效降解气态污染物清除剂的制备方法 - Google Patents
一种高效降解气态污染物清除剂的制备方法 Download PDFInfo
- Publication number
- CN111974156A CN111974156A CN201910441717.2A CN201910441717A CN111974156A CN 111974156 A CN111974156 A CN 111974156A CN 201910441717 A CN201910441717 A CN 201910441717A CN 111974156 A CN111974156 A CN 111974156A
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- solution
- scavenger
- mixing
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002516 radical scavenger Substances 0.000 title claims abstract description 20
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 15
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 230000000593 degrading effect Effects 0.000 title claims description 9
- 239000002808 molecular sieve Substances 0.000 claims abstract description 59
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 59
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 40
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 36
- 238000002156 mixing Methods 0.000 claims description 36
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 32
- 239000011258 core-shell material Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 23
- 238000002425 crystallisation Methods 0.000 claims description 18
- 230000008025 crystallization Effects 0.000 claims description 18
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 16
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 12
- 230000002209 hydrophobic effect Effects 0.000 claims description 12
- 238000005216 hydrothermal crystallization Methods 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 7
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 7
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 6
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 239000002149 hierarchical pore Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000011257 shell material Substances 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 239000000809 air pollutant Substances 0.000 abstract description 11
- 231100001243 air pollutant Toxicity 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 238000004887 air purification Methods 0.000 abstract description 3
- 239000002086 nanomaterial Substances 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 12
- 235000019441 ethanol Nutrition 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000013077 target material Substances 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 2
- 230000007670 carcinogenicity Effects 0.000 description 2
- 231100000260 carcinogenicity Toxicity 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010012434 Dermatitis allergic Diseases 0.000 description 1
- 208000002454 Nasopharyngeal Carcinoma Diseases 0.000 description 1
- 206010061306 Nasopharyngeal cancer Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 201000008937 atopic dermatitis Diseases 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000009982 effect on human Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000010893 electron trap Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 208000030603 inherited susceptibility to asthma Diseases 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 201000011216 nasopharynx carcinoma Diseases 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates [SAPO compounds]
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
-
- 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
- B01D53/007—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 by irradiation
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
- B01J29/072—Iron group metals or copper
-
- 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
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/802—Visible light
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
-
- 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
- B01J35/396—Distribution of the active metal ingredient
- B01J35/397—Egg shell like
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
本发明属于空气净化技术领域,具体涉及一种贵金属‑可见光降解室内空气污染物清除剂的制备方法。清除剂是以Ag、无定形硅、TiO2为核,以表面活性剂浸入后的分子筛为壳形成的纳米材料,对室内污染物如甲醛、苯、TVOC具有高的降解去除效果。该方法操作简单,净化效果好,具有一定的经济价值。
Description
技术领域
本发明属于空气净化技术领域,具体涉及一种室温除甲醛、苯、TVOC的清除剂及其制备方法。
背景技术
装修材料常采用人造板材、夹心板、胶、漆、涂料、粘合剂、花岗岩、大理石、瓷砖及石膏等,这些材料多多少少均含有不等的甲醛、苯、氨、氡等污染物,这些构成了室内空气污染物。室内空气污染物,如甲醛对皮肤黏膜具有刺激作用,对人体具有致敏作用,可引起过敏性皮炎、色斑、支气管哮喘等。其还具有强烈的致癌性和促癌变性,可引起例如鼻咽癌和白血病。
室内空气污染问题已引起人们的广泛关注。但目前市场上销售的室内清除剂大多只是一种“表面封闭剂”,而不是真正意义上的“甲醛等室内污染物的分解剂”。而是在板材或家具表面形成一层膜来暂时封闭甲醛等空气污染物的释放,一旦该膜由于受潮或遇热而遭到破坏,甲醛等空气污染物就会重新散发出来,危害人身体健康。
随着去除空气污染物的研究越发重视,研究者开始利用光催化剂TiO2,然而将其用于降解室内空气污染物也暴露出一些问题。如TiO2去除室内污染物需要紫外灯光的照射,对可见光利用不足5%,加之紫外灯光对人体有害,一定程度上限制了该类材料在净化空气领域方面的应用。由于吸附过程中,水份和污染物有着竞争吸附,因而水份会降低TiO2催化剂的活性以及寿命;在光催化过程中TiO2催化剂易发生团聚现象,极大降低其催化性能。
发明内容
本发明的目的在于克服上述现有技术中存在的问题,提供一种新型材料,用于催化降解室内空气污染物。本发明的清除剂主要成分是TiO2和分子筛。清除剂利用设计的材料于可见光照射下,自发的对室内污染物,如甲醛、苯、TVOC进行吸附,材料自身的物理化学性质对吸附的污染物进行降解。本发明所制备的清除剂属于纳米材料,为核-壳结构。其中,TiO2为核,以表面活性剂浸入后的分子筛为壳,Ag元素修饰。该清除剂具有降解催化和疏水的双功能性。在实际应用中,对室内污染物的去除率达到95%以上。
本发明的技术方案如下:
(1)室温下,将氨水、乙醇混合、搅拌,调节pH值成碱性,优选pH为8-9,再加入二氧化钛粉末,搅拌30min,记为溶液A;
(2)将正硅酸乙酯和二甲基二乙氧基硅烷按体积比5-10:1比例混合,加入硅藻土,其中硅藻土是二氧化钛粉末量的0.2-3倍,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥8h,得粉末C;
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:10-14.7,将NaAlO2、NaOH与水混合均匀,记为溶液D;将粉末C和溶液D混合,充分搅拌,备用,记为溶液E。
(4)称取分子筛和表面活性剂,表面活性剂是分子筛质量的1.5倍以上,加入乙醇,乙醇液体要淹没分子筛和表面活性剂,使分子筛浸泡12h以上;粗滤,取固体,记为浸泡后的分子筛;无需干燥。
(5)将浸泡后的分子筛与溶液E混合,充分搅拌后,置于水热晶化釜中,于100-300℃条件下水热晶化,晶化时间是12-24h,过滤、干燥得分子筛包覆TiO2的核壳材料。
(6)将步骤(5)得到的核壳材料浸入0.001-3mol/L硝酸银溶液中,放置到365nm紫外灯照射5-10min,加入六次甲基四胺和0.001-0.5mol/L硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h。
分子筛优选疏水型分子筛;疏水型分子筛优选甲基靶向定位到分子筛骨架上的分子筛,可以为市售疏水型分子筛,也可以自制。
其特征在于所述步骤(5)中,浸泡后的分子筛添加量是粉末C质量的2-5倍。步骤(5)获得的产物仍具有疏水性质,保留有分子筛的微孔或多级孔构造。
所述表面活性剂优选硬脂酸、十二烷基苯磺酸钠的一种或两种。
方案中,步骤(2)为步骤(4)提供了无定形硅。
浸泡使得表面活性剂渗透入分子筛孔隙结构中,表面活性剂有效提高了分子筛效能。为步骤(5)制备核-壳结构的材料,以及为去除室内污染物提供了更多的能量,离子电荷等,使得去除效果显著。硅藻土一方面提供硅元素,一方面提供少量的Al2O3、Fe2O3、CaO、MgO,增加材料的吸附性能、催化活性。
将上述制备的材料,喷洒于板材、家具或家居装饰的表面即可达到去除室内空气污染物的效果。
本发明设计、制备的核-壳材料构成了去除室内空气污染物清除剂的主要成分。这样的催化材料以核-壳结构促进了激发价带上的电子跃迁到导带,形成带负电的高活性电子,进而价带上形成空穴,促进光电子发生转移,从外界形成捕获电子的肖特基势垒,有效的充当电子陷阱阻击电子-空穴的复合。当富集的光电子被表面的氧化性物质捕获(如甲醛等),在这个过程中,电子不断被消耗,导致能级下降,这样就可以使光电子不断的流向材料表面以保持费米能级平衡,从此循环下去,降低了光电子-空穴的复合,从而增强的光催化性能,使其在可见光区具有较好的吸收催化降解性能。
附图说明
图1是实施例1的SEM图片。
具体实施方式
下面结合实施例对本发明作进一步详细描述。但是本发明不限于所给出的例子。
实施例1
(1)室温下,将150mL25%氨水,加无水乙醇混合、搅拌,调节pH值在7.5-8.2,再加入二氧化钛粉末50g,搅拌30min,记为溶液A;
(2)将正硅酸乙酯100mL和二甲基二乙氧基硅烷10mL混合,加入硅藻土25g,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥8h,得粉末C;
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:14.7,将NaAlO2、NaOH与水混合均匀,记为溶液D;将粉末C和溶液D混合,充分搅拌,备用,记为溶液E。
(4)按粉末C质量的2倍称取带有甲基修饰的SAP0-34分子筛,按所称取分子筛质量的1.5倍称取十二烷基苯磺酸钠,加入乙醇,乙醇液体足以淹没固体,搅拌,使分子筛浸泡12h以上;粗滤,取固体,记为浸泡后的分子筛;无需干燥。
(5)将浸泡后的分子筛与溶液E混合,充分搅拌后,置于水热晶化釜中,于100-300℃条件下水热晶化,晶化时间是12-24h,过滤、干燥得分子筛包覆TiO2的核壳材料。
(6)将步骤(5)得到的核壳材料浸入0.001mol/L硝酸银溶液中,放置到365nm紫外灯照射5-10min,加入六次甲基四胺和0.001mol/L硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h,得目标材料。
实施例2
(1)室温下,将300mL25%氨水,加无水乙醇混合、搅拌,调节pH值在8-9,再加入二氧化钛粉末100g,搅拌30min,记为溶液A;
(2)将正硅酸乙酯50mL和二甲基二乙氧基硅烷10mL混合,加入硅藻土40g,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥8h,得粉末C;
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:10,将NaAlO2、NaOH与水混合均匀,记为溶液D;将粉末C和溶液D混合,充分搅拌,备用,记为溶液E。
(4)按粉末C质量的2倍称取带有甲基修饰的SAP0-34分子筛,按所称取分子筛质量的2倍称取硬脂酸,加入乙醇,乙醇液体足以淹没固体,搅拌,使分子筛浸泡48h;粗滤,取固体,记为浸泡后的分子筛;无需干燥。
(5)将浸泡后的分子筛与溶液E混合,充分搅拌后,置于水热晶化釜中,于100-300℃条件下水热晶化,晶化时间是12-24h,过滤、干燥得分子筛包覆TiO2的核壳材料。
(6)将步骤(5)得到的核壳材料浸入1mol/L硝酸银溶液中,放置到365nm紫外灯照射5-10min,加入六次甲基四胺和1mol/L硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h,得目标材料。
实施例3
(1)室温下,将150mL25%氨水,加无水乙醇混合、搅拌,调节pH值在7.5-8.5,再加入二氧化钛粉末50g,搅拌30min,记为溶液A;
(2)将正硅酸乙酯100mL和二甲基二乙氧基硅烷10mL混合,加入硅藻土100g,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥8h,得粉末C;
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:14.7,将NaAlO2、NaOH与水混合均匀,记为溶液D;将粉末C和溶液D混合,充分搅拌,备用,记为溶液E。
(4)按粉末C质量的2.5倍称取市售疏水性分子筛,按所称取分子筛质量的2倍称取十二烷基苯磺酸钠,加入乙醇,乙醇液体足以淹没固体,搅拌,使分子筛浸泡48h;粗滤,取固体,记为浸泡后的分子筛;无需干燥。
(5)将浸泡后的分子筛与溶液E混合,充分搅拌后,置于水热晶化釜中,于100-300℃条件下水热晶化,晶化时间是12-24h,过滤、干燥得分子筛包覆TiO2的核壳材料。
(6)将步骤(5)得到的核壳材料浸入3mol/L硝酸银溶液中,放置到365nm紫外灯照射5-10min,加入六次甲基四胺和3mol/L硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h,得目标材料。
本发明方案的其他形式。以实施例4-5解释。
实施例4
(1)室温下,将100mL25%氨水、200mL乙醇混合、搅拌,调节pH值成8-9,记为溶液A;将50mL正硅酸乙酯和10mL二甲基二乙氧基硅烷混合,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥。
(2)购买市售的疏水性SAP0-34分子筛。
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:14.7,将NaAlO2、NaOH与水混合均匀,加入几滴硝酸银,硝酸银加入量占总溶液体积的千分之四,记为溶液C,将步骤(1)获得的粉末与步骤(2)获得的疏水分子筛加入到溶液C中,充分搅拌;于晶化釜中100℃,晶化24h,过滤、干燥得目标分子筛包覆TiO2的核壳材料,含无定形硅和Ag负载。
(4)将步骤(3)干燥后的产物放置到365nm紫外灯照射5min,加入六次甲基四胺和0.001M硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h,得目标材料。
实施例5
(1)室温下,将200mL25%氨水、500mL乙醇混合、搅拌,调节pH值成8-9,记为溶液A;将100mL正硅酸乙酯和10mL二甲基二乙氧基硅烷混合,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥,形成无定形硅;
(2)通过浸渍法将Si元素浸渍到具有甲基修饰的SAP0-34分子筛表面,形成疏水性SAP0-34分子筛。
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:14.7,将NaAlO2、NaOH与水混合均匀,记为溶液C,将步骤(1)获得的无定形硅与步骤(2)获得的疏水分子筛加入到溶液C中,充分搅拌;再加入硝酸银溶液,硝酸银加入量占溶液总体积的百分之20;于晶化釜中150℃,晶化24h,过滤、干燥得目标分子筛包覆TiO2的核壳材料,含无定形硅和Ag负载。
(4)将步骤(3)干燥后的产物放置到365nm紫外灯照射5min,加入六次甲基四胺和0.001M硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h,得目标材料。
图1是实施例1的SEM图片。图1可以看出达到了良好的晶化效果,制备得到有规则的纳米材料。
将上述实施例制备的材料,喷洒于板材、家具或家居装饰的表面即可达到去除室内空气污染物的效果。实施例甲醛去除率95%以上,苯、TVOC吸附和降解率达到85%以上。制备的清除剂材料中保留有分子筛的多级孔构造及疏水性,对有机物选择性捕获效果良好。
Claims (5)
1.一种高效降解气态污染物清除剂的制备方法,其特征在于所述清除剂的主要成分是TiO2、浸有表面活性剂的分子筛、Ag元素;所述清除剂是核-壳结构;所述核-壳结构中核的主要构成为TiO2和无定形硅,壳为浸入有表面活性剂的分子筛;所述清除剂中含有由硅藻土引入的Al、Fe、Ca、Mg元素;所述清除剂的制备方法包括如下步骤:
(1)室温下,将氨水、乙醇混合、搅拌,调节pH值成碱性,再加入二氧化钛粉末,搅拌30min,记为溶液A;
(2)将正硅酸乙酯和二甲基二乙氧基硅烷按体积比5-10:1比例混合,加入硅藻土,其中硅藻土是二氧化钛粉末量的0.2-3倍,记为溶液B;将溶液B快速加入到溶液A中,搅拌,100℃下真空干燥8h,得粉末C;
(3)按摩尔比NaAlO2、NaOH、H2O=1:1.5:10-14.7,将NaAlO2、NaOH与水混合均匀,记为溶液D;将粉末C和溶液D混合,充分搅拌,备用,记为溶液E;
(4)称取分子筛和表面活性剂,表面活性剂是分子筛质量的1.5倍以上,加入乙醇,乙醇液体要淹没分子筛和表面活性剂,使分子筛浸泡12h以上;粗滤,取固体,记为浸泡后的分子筛;无需干燥;
(5)将浸泡后的分子筛与溶液E混合,充分搅拌后,置于水热晶化釜中,于100-300℃条件下水热晶化,晶化时间是12-24h,过滤、干燥得分子筛包覆TiO2的核壳材料;
(6)将步骤(5)得到的核壳材料浸入0.001-3mol/L硝酸银溶液中,放置到365nm紫外灯照射5-10min,加入六次甲基四胺和0.001-0.5mol/L硝酸银溶液搅拌均匀,放入晶化釜中,晶化温度90℃,晶化时间1h。
2.根据权利要求1所述的一种高效降解气态污染物清除剂的制备方法,其特征在于所述分子筛优选疏水型分子筛;其特征在于所述步骤(5)中,浸泡后的分子筛添加量是粉末C质量的2-5倍;步骤(5)获得的产物仍具有疏水性质,保留有分子筛的微孔或多级孔构造。
3.根据权利要求1所述的一种高效降解气态污染物清除剂的制备方法,其特征在于所述表面活性剂为硬脂酸、十二烷基苯磺酸钠的一种或两种。
4.根据权利要求1所述的一种高效降解气态污染物清除剂的制备方法,其特征在于所述步骤(2)为步骤(4)提供了无定形硅。
5.根据权利要求1所述的一种高效降解气态污染物清除剂的制备方法,其特征在于所述清除剂富含贵金属银、用于催化降解甲醛、苯、TVOC污染物。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910441717.2A CN111974156A (zh) | 2019-05-24 | 2019-05-24 | 一种高效降解气态污染物清除剂的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910441717.2A CN111974156A (zh) | 2019-05-24 | 2019-05-24 | 一种高效降解气态污染物清除剂的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111974156A true CN111974156A (zh) | 2020-11-24 |
Family
ID=73436830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910441717.2A Pending CN111974156A (zh) | 2019-05-24 | 2019-05-24 | 一种高效降解气态污染物清除剂的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111974156A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112973437A (zh) * | 2021-02-20 | 2021-06-18 | 武汉绿知行环保科技有限公司 | 一种空气净化装置用甲醛去除母粒及其制备方法 |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103803581A (zh) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | 一种核壳结构zsm-5复合分子筛及其制备方法和应用 |
CN104001537A (zh) * | 2014-06-18 | 2014-08-27 | 中国矿业大学(北京) | 提高TiO2/硅藻土复合材料可见光催化活性及抗菌性能的方法 |
CN105289192A (zh) * | 2015-10-13 | 2016-02-03 | 山东大学 | 一种适用于空气净化机的室温甲醛分解剂及其制备方法 |
CN105363479A (zh) * | 2015-11-20 | 2016-03-02 | 太原理工大学 | 一种磁性纳米光催化材料Ag/AgCl@Fe3O4及其制备方法和应用 |
CN105597528A (zh) * | 2015-11-03 | 2016-05-25 | 中山大学 | 一种废气净化装置及工艺 |
CN106552614A (zh) * | 2015-09-29 | 2017-04-05 | 云南民族大学 | 疏水性二氧化钛/介孔硅核/壳复合光催化剂的制备方法 |
CN106732572A (zh) * | 2016-11-16 | 2017-05-31 | 中山大学 | 一种气态污染物的净化材料及其制备方法和应用 |
CN107185535A (zh) * | 2016-05-31 | 2017-09-22 | 浙江理工大学 | 一种无光除醛催化剂、包含所述催化剂的除醛体系及其用途 |
CN107308983A (zh) * | 2017-06-30 | 2017-11-03 | 科比环保科技(天津自贸试验区)有限公司 | 室温除室内voc的催化剂及其制备方法 |
CN108339567A (zh) * | 2018-02-10 | 2018-07-31 | 浙江大学 | 一种制备封装二氧化钛的疏水沸石催化材料的方法 |
CN108722470A (zh) * | 2018-05-28 | 2018-11-02 | 成都新柯力化工科技有限公司 | 一种用于室内净化空气的硅藻土复合光催化剂及制备方法 |
CN109225311A (zh) * | 2018-08-22 | 2019-01-18 | 天津大学 | 一种用于低温催化VOCs的复合氧化物催化剂的制备方法 |
CN109225140A (zh) * | 2018-10-10 | 2019-01-18 | 常州良福朗清生物科技有限公司 | 一种改性除甲醛沸石及其制备方法 |
CN109289777A (zh) * | 2018-12-10 | 2019-02-01 | 安徽万山红环保科技有限公司 | 一种废气吸附剂 |
-
2019
- 2019-05-24 CN CN201910441717.2A patent/CN111974156A/zh active Pending
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103803581A (zh) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | 一种核壳结构zsm-5复合分子筛及其制备方法和应用 |
CN104001537A (zh) * | 2014-06-18 | 2014-08-27 | 中国矿业大学(北京) | 提高TiO2/硅藻土复合材料可见光催化活性及抗菌性能的方法 |
CN106552614A (zh) * | 2015-09-29 | 2017-04-05 | 云南民族大学 | 疏水性二氧化钛/介孔硅核/壳复合光催化剂的制备方法 |
CN105289192A (zh) * | 2015-10-13 | 2016-02-03 | 山东大学 | 一种适用于空气净化机的室温甲醛分解剂及其制备方法 |
CN105597528A (zh) * | 2015-11-03 | 2016-05-25 | 中山大学 | 一种废气净化装置及工艺 |
CN105363479A (zh) * | 2015-11-20 | 2016-03-02 | 太原理工大学 | 一种磁性纳米光催化材料Ag/AgCl@Fe3O4及其制备方法和应用 |
CN107185535A (zh) * | 2016-05-31 | 2017-09-22 | 浙江理工大学 | 一种无光除醛催化剂、包含所述催化剂的除醛体系及其用途 |
CN106732572A (zh) * | 2016-11-16 | 2017-05-31 | 中山大学 | 一种气态污染物的净化材料及其制备方法和应用 |
CN107308983A (zh) * | 2017-06-30 | 2017-11-03 | 科比环保科技(天津自贸试验区)有限公司 | 室温除室内voc的催化剂及其制备方法 |
CN108339567A (zh) * | 2018-02-10 | 2018-07-31 | 浙江大学 | 一种制备封装二氧化钛的疏水沸石催化材料的方法 |
CN108722470A (zh) * | 2018-05-28 | 2018-11-02 | 成都新柯力化工科技有限公司 | 一种用于室内净化空气的硅藻土复合光催化剂及制备方法 |
CN109225311A (zh) * | 2018-08-22 | 2019-01-18 | 天津大学 | 一种用于低温催化VOCs的复合氧化物催化剂的制备方法 |
CN109225140A (zh) * | 2018-10-10 | 2019-01-18 | 常州良福朗清生物科技有限公司 | 一种改性除甲醛沸石及其制备方法 |
CN109289777A (zh) * | 2018-12-10 | 2019-02-01 | 安徽万山红环保科技有限公司 | 一种废气吸附剂 |
Non-Patent Citations (3)
Title |
---|
包新华等: "《无机化学实验》", 30 September 2010, 上海大学出版社 * |
宁伟伟: "二氧化钛纳米纤维材料的制备及其对甲醛的光催化降解性能", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
方克明: "《微米-纳米材料微观结构表征》", 31 July 2009, 北京.冶金出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112973437A (zh) * | 2021-02-20 | 2021-06-18 | 武汉绿知行环保科技有限公司 | 一种空气净化装置用甲醛去除母粒及其制备方法 |
CN112973437B (zh) * | 2021-02-20 | 2022-08-26 | 武汉绿知行环保科技有限公司 | 一种空气净化装置用甲醛去除母粒及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1982379B (zh) | 一种内墙涂料组合物 | |
CN107096527A (zh) | 一种常温高效催化氧化甲醛催化剂、制备方法及应用 | |
CN108325536B (zh) | 一种催化VOCs的锰-铜基复合氧化物掺杂稀土元素的催化剂及其制备方法和应用 | |
CN108339546B (zh) | 一种臭氧分解催化剂及其制备方法和应用 | |
CN108671905B (zh) | 一种用于污水处理的光催化剂的制备方法 | |
CN106975473A (zh) | 网络结构的负载型材料催化剂 | |
CN107308983B (zh) | 室温除室内voc的催化剂及其制备方法 | |
CN108579721B (zh) | 一种用于空气voc处理的光催化剂的制备方法 | |
CN107096562B (zh) | 一种微纤复合分子筛膜负载活性成分催化剂及其方法与应用 | |
AU2020103306A4 (en) | Preparation and application of a floating photocatalyst for inhibiting cyanobacteria in water | |
CN104772110A (zh) | 一种可见光响应型空气净化器光触媒滤网及其制备方法 | |
CN108067218A (zh) | 脱硝催化剂的制备方法 | |
CN1680018A (zh) | 甲醛分解剂及其制备方法 | |
CN103357443A (zh) | 一种氧化钛涂层/泡沫碳化硅结构催化载体及其制备方法 | |
CN107935618B (zh) | 一种生态装饰硅藻泥-人造砂岩复合板及制备方法 | |
CN111974156A (zh) | 一种高效降解气态污染物清除剂的制备方法 | |
CN101773831A (zh) | 一种微孔氧化亚铜可见光催化剂及其制备方法和应用 | |
CN109012756A (zh) | 一种具有高稳定性的光催化材料及其制备方法 | |
CN109092257B (zh) | 一种改性多孔氧化铝甲醛吸附剂及其制备方法 | |
CN112403459A (zh) | 一种基于金属相变微胶囊的低温scr催化剂及其制备方法 | |
CN114471585A (zh) | 一种前驱体为醋酸盐的臭氧催化剂及其制备方法与应用 | |
CN108250808B (zh) | 硅藻土负载的氮掺杂二氧化钛/二氧化硅光催化涂料 | |
CN110075909A (zh) | 一种净化含氮有机化合物废气用催化剂 | |
CN106377983B (zh) | 一种纳米藻酸钛空气净化材料及其制备方法 | |
CN108355695A (zh) | 一种具备内转光的净化甲醛的专用硅藻泥及制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201124 |
|
WD01 | Invention patent application deemed withdrawn after publication |