CN112108154A - 一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 - Google Patents
一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 Download PDFInfo
- Publication number
- CN112108154A CN112108154A CN202011110783.0A CN202011110783A CN112108154A CN 112108154 A CN112108154 A CN 112108154A CN 202011110783 A CN202011110783 A CN 202011110783A CN 112108154 A CN112108154 A CN 112108154A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- formaldehyde
- ozone
- solution
- gamma
- 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
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000003054 catalyst Substances 0.000 title claims abstract description 35
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910003158 γ-Al2O3 Inorganic materials 0.000 claims abstract description 12
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000006104 solid solution Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- LAIZPRYFQUWUBN-UHFFFAOYSA-L nickel chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ni+2] LAIZPRYFQUWUBN-UHFFFAOYSA-L 0.000 claims description 4
- 239000012286 potassium permanganate Substances 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 13
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 238000006731 degradation reaction Methods 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 230000000593 degrading effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 230000000711 cancerogenic effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000378 teratogenic Toxicity 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
本发明公开一种臭氧敏感性甲醛去除催化剂及其制备方法和应用,该催化剂为γ‑Al2O3负载的镍锰(NiyMn1‑yOx)固溶体催化剂,其中以MnO2的质量计,MnO2的负载量为γ‑Al2O3质量的50%,y为0.025‑0.050,催化剂采用水热法制备。本发明所述的催化剂能消除低浓度的臭氧,且在室温下能实现对甲醛的催化完全降解。除此之外,该催化剂还对空气中的其他污染物,如甲苯,也有较高的降解效率。该催化剂制备方法简单,价格低廉,能有效利用臭氧的强氧化性降解空气中的甲醛和甲苯等污染物。
Description
技术领域
本发明属于催化环保技术领域,具体涉及一种臭氧敏感性甲醛去除催化剂及其制备方法和应用。其目的在于解决当前甲醛催化氧化过程中中间产物多,反应不完全等问题。
背景技术
随着生活水平的逐渐提高,环境问题日益严重,室内装潢造成的环境问题引发了越来越多人的关注。其中,甲醛是室内装修中最常见也是毒性最大的污染物之一,由于甲醛污染造成的疾病也逐步凸显。甲醛已经被世界卫生组织确定为致癌和致畸形物质,是公认的变态反应源,也是潜在的强致突变物之一,引发多种疾病,具有强烈的致癌和促癌作用。据有关国际组织调查,全世界每年有近300万人直接或间接死于装修引起的甲醛污染。因此,室内空气中甲醛污染问题亟待解决。
目前针对甲醛污染主要是从源头上控制和后处理两种手段。从源头上控制主要是加强安全装修材料的管控。后处理主要是针对已经引起的室内污染采用吸附、催化分解等方式消除污染。由于甲醛在空气中动态变化,其检测难度巨大,针对低浓度甲醛的去除的研究工作困难重重。目前针对甲醛的去除,主要是采用吸附的方法,尽管单一的吸附法对甲醛去除效果相对较好,但是容易因为吸附饱和引起失活,且易造成二次污染。催化氧化法能将甲醛降解,但目前的大部分催化剂很难实现甲醛的催化完全降解。通常在甲醛降解的过程中容易生成甲酸等中间产物吸附在催化剂表面,从而导致催化剂失活。甲醛在室温下实现催化完全降解为二氧化碳和水仍然是科学家们需要攻克的难题。
臭氧作为一种强氧化剂可以在催化剂表面活化分解为活性氧,该活性氧可以促进甲醛中间产物的完全氧化。本发明针对现有甲醛催化剂易生成中间产物覆盖活性位的特点,制备一种臭氧敏感性甲醛催化剂,利用臭氧的强氧化性促进甲醛的完全氧化。
发明内容
针对当前甲醛催化氧化过程中中间产物多,反应不完全等问题,本发明目的在于提供一种臭氧敏感性甲醛去除催化剂。
本发明的再一目的在于:提供一种上述臭氧敏感性甲醛去除催化剂产品的制备方法。
本发明的又一目的在于:提供一种上述产品的应用。
本发明目的通过下述方案实现:一种臭氧敏感性甲醛去除催化剂,该催化剂为γ-Al2O3负载的镍锰(NiyMn1-yOx)固溶体催化剂,其中,以MnO2的质量计,MnO2的负载量为γ-Al2O3质量的50%,y为0.025-0.050。
本发明提供一种臭氧敏感性甲醛去除催化剂的制备方法,采用水热法制备,包括以下步骤:
(1)称取1g载体γ-Al2O3分散于40ml去离子水中;
(2)向上述悬浮液中加入4.18mmol高锰酸钾,继续搅拌0.5h,记作溶液A;
(3)称取1.57mmol一水合硫酸锰溶解于40ml去离子水中,记作溶液B;
(4)称取0.15mmol或者0.30mmoln六水合二氯化镍溶解于上述溶液B中,继续搅拌0.5h;
(5)将上述溶液A和步骤(4)的溶液混合均匀,然后转移到100毫升的水热釜中;
(6)将水热釜置于140℃烘箱水热12h;
(7)得到的沉淀过滤、用去离子水洗涤;
(8)于100℃烘箱中干燥12h,然后于400℃条件下在空气中焙烧4h。
本发明还提供了一种臭氧敏感性甲醛去除催化剂的应用,在室温对甲醛、臭氧、甲苯进行催化消除。
在连续流动固定床装置中测试甲醛净化性能。气体总流量为500ml/min,反应压力为常压1atm,甲醛的初始浓度为1ppm(V/V),臭氧浓度为50ppm, 样品用量为0.2g。
在连续流动固定床装置中测试甲苯净化性能。气体总流量为100ml/min,反应压力为常压1atm,甲苯的初始浓度为10ppm(V/V),臭氧浓度为50ppm, 样品用量为0.2g。
本发明提供一种臭氧敏感性的催化材料,可以利用其对臭氧的敏感性促进甲醛和甲苯等污染物的深度降解,同时也能消除臭氧污染问题。本发明所述的催化剂能消除低浓度的臭氧,且在室温下能实现对甲醛的催化完全降解。除此之外,该催化剂还对空气中的其他污染物,如甲苯,也有较高的降解效率。该催化剂制备方法简单,价格低廉,能有效利用臭氧的强氧化性降解空气中的甲醛和甲苯等污染物。
具体实施例
实施例1
一种臭氧敏感性甲醛去除催化剂,采用水热法制备,按以下步骤制备:
(1)称取1g载体γ-Al2O3分散于40ml去离子水中;
(2)向上述悬浮液中加入0.66g高锰酸钾,继续搅拌0.5h,记作溶液A;
(3)称取0.27g一水合硫酸锰溶解于40ml去离子水中,记作溶液B;
(4)称取0.035g六水合二氯化镍溶解于上述溶液B中,继续搅拌0.5h;
(5)将上述溶液A和步骤(4)的溶液混合均匀,然后转移到100毫升的水热釜中;
(6)将水热釜置于140℃烘箱水热12h;
(7)得到的沉淀过滤、用去离子水洗涤;
(8)于100℃烘箱中干燥12h,然后于400℃条件下在空气中焙烧4h,得到的催化剂记作Ni0.25Mn9.75Ox/γ-Al2O3。
实施例2
一种臭氧敏感性甲醛去除催化剂,与实施例步骤相同,按以下步骤制备:
(1)称取1g载体γ-Al2O3分散于40ml去离子水中;
(2)向上述悬浮液中加入0.66g高锰酸钾,继续搅拌0.5h,记作溶液A;
(3)称取0.27g一水合硫酸锰溶解于40ml去离子水中,记作溶液B;
(4)称取0.07g六水合二氯化镍溶解于上述溶液B中,继续搅拌0.5h;
(5)将上述溶液A和步骤(4)的溶液混合均匀,然后转移到100毫升的水热釜中;
(6)将水热釜置于140℃烘箱水热12h;
(7)得到的沉淀过滤、用去离子水洗涤;
(8)于100℃烘箱中干燥12h,然后于400℃条件下在空气中焙烧4h,得到的催化剂记作Ni0.50Mn9.50Ox/γ-Al2O3。
在连续流动固定床装置中测试甲醛净化性能。气体总流量为500ml/min,反应压力为常压1atm,甲醛的初始浓度为1ppm(V/V),臭氧浓度为50ppm, 样品用量为0.2g。催化性能测试结果如下表1。
在连续流动固定床装置中测试甲苯净化性能。气体总流量为100ml/min,反应压力为常压1atm,甲苯的初始浓度为10ppm(V/V),臭氧浓度为50ppm, 样品用量为0.2g。催化性能测试结果如下表1:
从表1的结果可以看出,此方法所制备的臭氧敏感性催化剂在室温下对甲醛、甲苯和臭氧均有一定的净化率。臭氧的促进作用可以实现甲醛的催化完全氧化。
Claims (3)
1.一种臭氧敏感性甲醛去除催化剂,其特征在于,该催化剂为γ-Al2O3负载的镍锰(NiyMn1-yOx)固溶体催化剂,其中,以MnO2的质量计,MnO2的负载量为γ-Al2O3质量的50%,y为0.025-0.050。
2.一种根据权利要求1所述臭氧敏感性甲醛去除催化剂的制备方法,其特征在于采用水热法制备,包括以下步骤:
(1)称取1g载体γ-Al2O3分散于40ml去离子水中,得到悬浮液;
(2)向上述悬浮液中加入4.18mmol高锰酸钾,继续搅拌0.5h,记作溶液A;
(3)称取1.57mmol一水合硫酸锰溶解于40ml去离子水中,记作溶液B;
(4)称取0.15mmol或者0.30mmoln六水合二氯化镍溶解于上述溶液B中,继续搅拌0.5h;
(5)将上述溶液A和步骤(4)的溶液混合均匀,然后,转移到100毫升的水热釜中;
(6)将水热釜置于140℃烘箱水热12h;
(7)得到的沉淀过滤、用去离子水洗涤;
(8)于100℃烘箱中干燥12h,然后于400℃条件下在空气中焙烧4h。
3.一种根据权利要求1所述臭氧敏感性甲醛去除催化剂的应用,其特征在于,在室温对甲醛、臭氧、甲苯进行催化消除。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011110783.0A CN112108154A (zh) | 2020-10-16 | 2020-10-16 | 一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011110783.0A CN112108154A (zh) | 2020-10-16 | 2020-10-16 | 一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112108154A true CN112108154A (zh) | 2020-12-22 |
Family
ID=73794967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011110783.0A Pending CN112108154A (zh) | 2020-10-16 | 2020-10-16 | 一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112108154A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113477245A (zh) * | 2021-06-30 | 2021-10-08 | 上海师范大学 | 金属或金属离子修饰c基臭氧活化催化剂及其制备方法和应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101774675A (zh) * | 2010-01-15 | 2010-07-14 | 济南大学 | 一种催化氧化预处理新戊二醇生产废水的方法 |
CN103861615A (zh) * | 2012-12-14 | 2014-06-18 | 上海郎特汽车净化器有限公司 | 一种用于汽车尾气净化的催化剂及其制备方法 |
CN106076351A (zh) * | 2016-06-13 | 2016-11-09 | 湘潭大学 | 一种用于治理工业固定源有机废气催化剂及其制备方法 |
CN110280263A (zh) * | 2019-06-26 | 2019-09-27 | 中国科学院山西煤炭化学研究所 | 脱除烟气氮氧化物的氧化铝负载锰镍催化剂及制备和应用 |
-
2020
- 2020-10-16 CN CN202011110783.0A patent/CN112108154A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101774675A (zh) * | 2010-01-15 | 2010-07-14 | 济南大学 | 一种催化氧化预处理新戊二醇生产废水的方法 |
CN103861615A (zh) * | 2012-12-14 | 2014-06-18 | 上海郎特汽车净化器有限公司 | 一种用于汽车尾气净化的催化剂及其制备方法 |
CN106076351A (zh) * | 2016-06-13 | 2016-11-09 | 湘潭大学 | 一种用于治理工业固定源有机废气催化剂及其制备方法 |
CN110280263A (zh) * | 2019-06-26 | 2019-09-27 | 中国科学院山西煤炭化学研究所 | 脱除烟气氮氧化物的氧化铝负载锰镍催化剂及制备和应用 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113477245A (zh) * | 2021-06-30 | 2021-10-08 | 上海师范大学 | 金属或金属离子修饰c基臭氧活化催化剂及其制备方法和应用 |
CN113477245B (zh) * | 2021-06-30 | 2024-01-23 | 上海师范大学 | 金属或金属离子修饰c基臭氧活化催化剂及其制备方法和应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102895969A (zh) | 一种甲醛室温氧化催化剂的制备方法 | |
CN102247746B (zh) | 一种甲醛消除剂及其制备方法 | |
CN102218312B (zh) | 去除空气中低浓度苯系物的锰铈复合氧化物催化剂及其制备方法 | |
CN107952429B (zh) | 用于甲苯催化氧化的纳米催化剂、制备方法及其应用 | |
CN109248679A (zh) | 一种VOCs常温降解高效催化剂及其制备与应用 | |
TW201323082A (zh) | 金-鈀承載於二氧化鈰觸媒之製法及其在去除有機氣體之應用 | |
CN103920459B (zh) | 以硅酸盐粘土与稻壳为原料制备高效吸附复合材料的方法 | |
CN112108154A (zh) | 一种臭氧敏感性甲醛去除催化剂及其制备方法和应用 | |
CN113731402B (zh) | 一种催化剂及其制备方法和应用 | |
CN105413708A (zh) | 一种低浓度空气污染物净化材料的制备方法 | |
CN111774069B (zh) | 臭氧协同催化氧化挥发性有机物的锰铈固溶体负载钴催化剂及其制备方法和应用 | |
CN113477245A (zh) | 金属或金属离子修饰c基臭氧活化催化剂及其制备方法和应用 | |
CN116371419B (zh) | 一种微生物炭负载锰钴型催化剂及其制备方法和应用 | |
Zhang et al. | Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon | |
CN112495371A (zh) | 一种用于催化臭氧氧化挥发性有机物的催化剂制备方法 | |
Tran-Thuy et al. | Cobalt-doped cryptomelane: Surface-tailored oxygen defects and efficiently catalytic ozonation of p-nitrophenol | |
Jiang et al. | Catalytic wet peroxide oxidation of metronidazole over Fe and Mn supported UiO-66 catalysts: Kinetic study | |
CN114832848A (zh) | 一种催化剂及其制备方法和应用 | |
CN115779944A (zh) | 一种基于碱金属离子改性氮化碳及其制备方法和光催化产h2o2中的应用 | |
CN114797853A (zh) | 一种抗VOCs干扰的臭氧分解催化剂及其制备方法和用途 | |
CN113019423B (zh) | 一种臭氧氧化氨气催化剂、制备方法及其应用 | |
CN115007139A (zh) | 富含氧空位的锰基VOCs催化燃烧催化剂及其制备方法 | |
CN111330579B (zh) | 一种介孔复合材料Fe3O4-Co3O4及其制备方法和在降解气态污染物中的应用 | |
CN110841627A (zh) | 稀土修饰的吸附富集-催化氧化双功能催化剂及其制备方法和应用 | |
CN112569928B (zh) | 一种臭氧协同甲醛-苯共催化降解催化剂及其制备方法和应用 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201222 |
|
RJ01 | Rejection of invention patent application after publication |