CN109985633A - Ozone decomposition catalyst and preparation method thereof - Google Patents

Ozone decomposition catalyst and preparation method thereof Download PDF

Info

Publication number
CN109985633A
CN109985633A CN201910355813.5A CN201910355813A CN109985633A CN 109985633 A CN109985633 A CN 109985633A CN 201910355813 A CN201910355813 A CN 201910355813A CN 109985633 A CN109985633 A CN 109985633A
Authority
CN
China
Prior art keywords
catalyst
weight
ozone decomposition
ozone
solution
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
Application number
CN201910355813.5A
Other languages
Chinese (zh)
Inventor
郝士杰
张艮交
吴颖
卫伟
华仲慰
李蕾
季均
李新华
袁芳芳
贾莉伟
徐岘
王家明
沈川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Weifu Environmental Protection Catalyst Co Ltd
Original Assignee
Wuxi Weifu Environmental Protection Catalyst Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Weifu Environmental Protection Catalyst Co Ltd filed Critical Wuxi Weifu Environmental Protection Catalyst Co Ltd
Priority to CN201910355813.5A priority Critical patent/CN109985633A/en
Publication of CN109985633A publication Critical patent/CN109985633A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
    • B01D53/8675—Ozone
    • 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
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/2073—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/70—Non-metallic catalysts, additives or dopants
    • B01D2255/702—Carbon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The present invention relates to a kind of ozone decomposition catalysts, load has iron oxide and manganese dioxide on a catalyst support, the weight ratio of iron oxide and catalyst carrier is (0.07 ~ 0.6): 1, the weight ratio of manganese dioxide and catalyst carrier is (0.08 ~ 0.8): 1.Preparation method includes: by Fe (NO3)3·9H2Mn (NO is added in O3)2Mixed solution is formed in solution；Catalyst carrier is added in mixed solution, is 8 ~ 9 with the pH value that ammonium hydroxide adjusts mixed solution, forms mixed slurry；Mixed slurry is placed in ceramic tray, drying obtains catalyst powder；Powder is put into Muffle furnace, in N2The lower roasting of protection, after roasting, in N2It is cooled to 180 ~ 200 DEG C under protection, stops logical N2, cooled to room temperature to get arrive ozone decomposition catalyst.Invention increases catalyst surface defects, form more Lacking oxygens, are conducive to the adsorption-decomposition function of ozone, at room temperature, ozone can be made to obtain higher conversion.

Description

Ozone decomposition catalyst and preparation method thereof
Technical field
The present invention relates to a kind of ozone decomposition catalysts and preparation method thereof, and the invention belongs to catalyst preparation technology necks Domain.
Background technique
The concentration of ozone is 1-10ppm in stratosphere away from ground level 16-50km, can absorb having from sunlight Evil ultraviolet radioactive.But in the troposphere of near-earth, volatile organic matter in air (Volatile organic compunds, VOCs photochemical reaction) occurs with nitrogen oxides (NOx) and generates ozone, concentration may be up to 200-400ppb.According to " environment Air quality standard " 1 hour ozone concentration mean value of (GB3095-2012) secondary standard (being suitable for urban environment air) regulation is not Be more than 100ppb, be more than this concentration, will cause to have a headache, throat is very thirsty and the diseases such as mucosa injury, to human health with And atmospheric environment is very harmful.And in the standard that the developed countries such as the U.S., European Union and area are formulated, highest ozone acceptable concentration one As in 60-80ppb.Removal ozone is necessary.
Ozone has thermal instability, and temperature starts slowly to decompose when being higher than 250 DEG C.At normal atmospheric pressure, molar ratio In 1% gas phase ozone and the gaseous mixture of oxygen, the half-life period of ozone is 19.3, so to decompose at a lower temperature smelly Oxygen is needed using catalyst.Catalytic decomposition of ozone catalyst mainly include noble metal (such as Pt or Pd) and transition metal (such as Mn, Co and Ni etc.) oxide.Compared with noble metal, metal oxide catalyst is cheap, widely distributed and be easily obtained, thus With larger application potential.B.Dhandapani etc. is research shows that Mn oxide is that activity is highest smelly in transition metal oxide Oxygen decomposition catalyst.J.B.Jia and C.X.Wang etc. has found the degrading activity of ozone and the oxygen sky on manganese oxide catalyst surface Position is related, and the activity of ozone decomposition catalyst can be improved by modulation Mn oxide crystal phase and crystal polymorph control.
Summary of the invention
An object of the present invention is to overcome the deficiencies in the prior art, provides a kind of absorption for being conducive to ozone point The ozone decomposition catalyst of solution.
It is a further object of the present invention to provide a kind of preparation methods of ozone decomposition catalyst.
According to technical solution provided by the invention, the ozone decomposition catalyst, load has oxidation on a catalyst support The weight ratio of iron and manganese dioxide, iron oxide and catalyst carrier is (0.07~0.6): 1, manganese dioxide and catalyst carrier Weight ratio is (0.08~0.8): 1.
The catalyst carrier is active carbon, aluminium oxide, silica, titanium dioxide or molecular sieve.
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) taking 4~20 parts by weight weight percentages is 50% Mn (NO3)2Solution, by 5~20 parts by weight Fe (NO3)3·9H2Mn (NO is added in O3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 5~15 part by weight of catalyst carriers are added in the mixed solution that step (1) is prepared, continue 5~6h of stirring, Then it is 8~9 with the pH value that ammonium hydroxide adjusts mixed solution, forms mixed slurry；
(3) mixed slurry of step (2) is placed in ceramic tray, at 100~120 DEG C dry 8~for 24 hours, urged Agent powder, for use；
(4) catalyst powder of step (3) is put into Muffle furnace, in N2Under protection, 400~600 DEG C of 3~5h of roasting, After roasting, in N2Under protection, catalyst powder is cooled to 180~200 DEG C, stops logical N2, catalyst powder naturally cools to Room temperature to get arrive ozone decomposition catalyst.
The present invention by diffusion infusion process, urge by the Fe-MnOx/AC carrier-borne transition metal ozone decomposition for being prepared for Fe doping Agent.The Fe of doping is easy to and MnO2Mixed crystal is formed, two-phase interface is increased, to increase catalyst surface defect, is formed More Lacking oxygens are conducive to the adsorption-decomposition function of ozone, at room temperature, ozone can be made to obtain higher conversion.Iron and manganese former material Expect it is cheap, widely distributed, be easily obtained.The catalyst is prepared by hybrid infusion method, and process is simply controllable, is easy to scale Metaplasia produces, thus has larger application potential.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 20 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 5 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) active carbon of 15 parts by weight is added in the mixed solution of step (1) configuration, continues to stir 5h, then uses ammonia It is 8.10 that water, which adjusts pH value, forms mixed slurry；
(3) mixed slurry is placed in ceramic tray, is dried at 100 DEG C for 24 hours, obtain catalyst powder, for use；
(4) catalyst powder is put into Muffle furnace, in N2Under protection, 600 DEG C of roasting 3h, after roasting, in N2Protection Under, catalyst powder is cooled to 200 DEG C, stops logical N2, catalyst powder cooled to room temperature to get to ozone decompose catalysis Agent.
In the ozone decomposition catalyst made from embodiment 1, Fe2O3Weight and activated carbon weight ratio are 0.067:1, MnO2 Weight and activated carbon weight ratio are 0.333:1.
Embodiment 2
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 16 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 10 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 8 parts by weight are added in the mixed solution of step (1) configuration by pretreated active carbon, continue to stir 6h, Then adjusting pH value with ammonium hydroxide is 8.41, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 20h at 105 DEG C, obtains catalyst powder Body, for use；
(4) catalyst powder after step (3) drying is put into Muffle furnace, in N2Under protection, 550 DEG C of roasting 3.5h, After roasting, in N2Under protection, catalyst powder is cooled to 195 DEG C, stops logical N2, catalyst powder cooled to room temperature, Obtain ozone decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 2, Fe2O3Weight and activated carbon weight ratio are 0.500:1, MnO2 Weight and activated carbon weight ratio are 0.250:1.
Embodiment 3
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 12 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 15 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 5 parts by weight are added in the mixed solution of step (1) configuration by pretreated active carbon, continue to stir 5h, Then adjusting pH value with ammonium hydroxide is 8.53, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 16h at 110 DEG C, obtains catalyst powder Body, for use；
(4) catalyst powder after step (3) drying is put into Muffle furnace, in N2Under protection, 500 DEG C of roasting 4h, roasting After burning, in N2Under protection, catalyst powder is cooled to 190 DEG C, stops logical N2, catalyst powder cooled to room temperature, i.e., Obtain ozone decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 3, Fe2O3Weight and activated carbon weight ratio are 0.600:1, MnO2 Weight and activated carbon weight ratio are 0.600:1.
Embodiment 4
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 4 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 20 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 12 parts by weight are added in the mixed solution of step (1) configuration by pretreated active carbon, continue to stir 6h, then adjusting pH value with ammonium hydroxide is 8.95, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 12h at 115 DEG C, obtains catalyst powder Body, for use.
(4) catalyst powder after step (3) drying is put into Muffle furnace, in N2Under protection, 450 DEG C of roasting 4.5h, After roasting, in N2Under protection, catalyst powder is cooled to 185 DEG C, stops logical N2, catalyst powder cooled to room temperature, Obtain Fe-MnOx/ AC ozone decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 4, Fe2O3Weight and activated carbon weight ratio are 0.333:1, MnO2 Weight and activated carbon weight ratio are 0.083:1.
Embodiment 5
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 12 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 15 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 15 weight aluminium oxide are added in the mixed solution of step (1) configuration, continue to stir 6h, then with ammonium hydroxide tune Saving pH value is 8.67, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 10h at 120 DEG C, obtains catalyst powder Body, for use；
(4) powder after step (3) drying is put into Muffle furnace, in N2Under protection, 400 DEG C of roasting 4.5h, roasting knot Shu Hou, in N2Under protection, catalyst powder is cooled to 180 DEG C, stops logical N2, catalyst powder cooled to room temperature is to get arriving Ozone decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 5, Fe2O3Weight and activated carbon weight ratio are 0.200:1, MnO2 Weight and activated carbon weight ratio are 0.200:1.
Embodiment 6
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 20 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 10 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 8 parts by weight of silica are added in the mixed solution of step (1) configuration, continue to stir 6h, then uses ammonium hydroxide Adjusting pH value is 8.12, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 8h at 120 DEG C, obtains catalyst powder Body, for use；
(4) catalyst powder after step (3) drying is put into Muffle furnace, in N2Under protection, 480 DEG C of roasting 6h, roasting After burning, in N2Under protection, catalyst powder is cooled to 188 DEG C, stops logical N2, catalyst powder cooled to room temperature, i.e., Obtain ozone decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 6, Fe2O3Weight and activated carbon weight ratio are 0.200:1, MnO2 Weight and activated carbon weight ratio are 0.625:1.
Embodiment 7
A kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) 16 parts by weight are taken, the Mn (NO that weight percentage is 50%3)2Solution, by 5 parts by weight Fe (NO3)3·9H2O Mn (NO is added3)2In solution, continues to stir 30min, form mixed solution, for use；
(2) 5 parts by weight of titanium dioxide are added in the mixed solution of step (1) configuration, continue to stir 6h, then uses ammonium hydroxide Adjusting pH value is 8.12, forms mixed slurry；
(3) mixed slurry in step (2) is placed in ceramic tray, dries 11h at 118 DEG C, obtains catalyst powder Body, for use；
(4) powder after step (3) drying is put into Muffle furnace, in N2Under protection, 530 DEG C of roasting 5h, roasting terminates Afterwards, in N2Under protection, catalyst powder is cooled to 198 DEG C, stops logical N2, catalyst powder cooled to room temperature is to get to smelly Oxygen decomposition catalyst.
In the ozone decomposition catalyst made from embodiment 7, Fe2O3Weight and activated carbon weight ratio are 0.200:1, MnO2 Weight and activated carbon weight ratio are 0.800:1.
Wherein, the active carbon of embodiment 1 to embodiment 4 must pre-process before into crossing, and preprocess method is as follows: often Under normal temperature and pressure, active carbon is placed in NaOH solution in 1.0mol/L and impregnates 12h, it is rear to filter, it is rinsed 5 times with deionized water；Again In the HNO of 1.0mol/L3In solution, with 60 DEG C of heating water bath 2h, filtering is rinsed 5 times with deionized water, is dried at 100 DEG C It is dry stand-by；
Ozone decomposition catalyst made from embodiment 1 to embodiment 7 is subjected to catalyst activity test.
Catalyst activity test condition: active testing carries out in fixed-bed quartz reactor (diameter 4mm), catalyst particles Grain is 40-60 mesh, and filling height is 10mm, and catalyst weight 0.1g, temperature is 25 DEG C, relative humidity 45%, ozone import 50 ± 2ppm of concentration, air are Balance Air, and air velocity is 4.0 × 105mL·g-1·h-1, air mass flow 900ml/min.It urges Agent Activity evaluation is shown in Table 1.
Table 1
Note: result when ventilatory response 10h.
As shown in Table 1, at higher concentrations, the ozone decomposition catalyst of various embodiments of the present invention preparation all has higher smelly Oxygen degrading activity.

Claims (3)

1. a kind of ozone decomposition catalyst, it is characterized in that: load has iron oxide and manganese dioxide, iron oxide on a catalyst support It is (0.07 ~ 0.6) with the weight ratio of catalyst carrier: 1, the weight ratio of manganese dioxide and catalyst carrier is (0.08 ~ 0.8): 1。
2. ozone decomposition catalyst as described in claim 1, it is characterized in that: the catalyst carrier is active carbon, oxidation Aluminium, silica, titanium dioxide or molecular sieve.
3. a kind of preparation method of ozone decomposition catalyst the following steps are included:
(1) taking 4 ~ 20 parts by weight weight percentages is 50% Mn (NO3)2Solution, by 5 ~ 20 parts by weight Fe (NO3)3·9H2O adds Enter Mn (NO3)2In solution, continues to stir 30 min, form mixed solution, for use；
(2) 5 ~ 15 part by weight of catalyst carriers are added in the mixed solution that step (1) is prepared, continue 5 ~ 6h of stirring, then uses The pH value that ammonium hydroxide adjusts mixed solution is 8 ~ 9, forms mixed slurry；
(3) mixed slurry of step (2) is placed in ceramic tray, at 100 ~ 120 DEG C dry 8 ~ for 24 hours, obtain catalyst powder Body, for use；
(4) catalyst powder of step (3) is put into Muffle furnace, in N2Under protection, 400 ~ 600 DEG C of 3 ~ 5h of roasting, roasting terminates Afterwards, in N2Under protection, catalyst powder is cooled to 180 ~ 200 DEG C, stops logical N2, catalyst powder cooled to room temperature to get To ozone decomposition catalyst.
CN201910355813.5A 2019-04-29 2019-04-29 Ozone decomposition catalyst and preparation method thereof Pending CN109985633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910355813.5A CN109985633A (en) 2019-04-29 2019-04-29 Ozone decomposition catalyst and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910355813.5A CN109985633A (en) 2019-04-29 2019-04-29 Ozone decomposition catalyst and preparation method thereof

Publications (1)

Publication Number Publication Date
CN109985633A true CN109985633A (en) 2019-07-09

Family

ID=67135692

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910355813.5A Pending CN109985633A (en) 2019-04-29 2019-04-29 Ozone decomposition catalyst and preparation method thereof

Country Status (1)

Country Link
CN (1) CN109985633A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113209982A (en) * 2021-05-10 2021-08-06 四川宝英胜达环保材料有限公司 Efficient ozone catalyst suitable for normal temperature and pressure and preparation method thereof
CN114618475A (en) * 2022-04-06 2022-06-14 上海复荣科技(集团)有限公司 Preparation method of flexible manganese-based catalyst for decomposing ozone
CN115121258A (en) * 2022-07-28 2022-09-30 无锡威孚环保催化剂有限公司 Ozone eliminating catalyst and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03151048A (en) * 1989-11-06 1991-06-27 Sakai Chem Ind Co Ltd Catalyst filter for cracking ozone
CN104289238A (en) * 2014-09-12 2015-01-21 山东沁宇环保科技有限公司 Catalyst used for degrading ozone at normal temperature and preparation method and application thereof
CN104646020A (en) * 2013-11-18 2015-05-27 北京天灏柯润环境科技有限公司 Ozone catalyst and preparation method
CN107970947A (en) * 2017-11-30 2018-05-01 宁波智通环保科技有限公司 The catalyst and its manufacture method of a kind of ozone decomposition
CN108906072A (en) * 2018-07-17 2018-11-30 无锡威孚环保催化剂有限公司 A kind of diesel vehicle soot particle urges combustion catalyst and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03151048A (en) * 1989-11-06 1991-06-27 Sakai Chem Ind Co Ltd Catalyst filter for cracking ozone
CN104646020A (en) * 2013-11-18 2015-05-27 北京天灏柯润环境科技有限公司 Ozone catalyst and preparation method
CN104289238A (en) * 2014-09-12 2015-01-21 山东沁宇环保科技有限公司 Catalyst used for degrading ozone at normal temperature and preparation method and application thereof
CN107970947A (en) * 2017-11-30 2018-05-01 宁波智通环保科技有限公司 The catalyst and its manufacture method of a kind of ozone decomposition
CN108906072A (en) * 2018-07-17 2018-11-30 无锡威孚环保催化剂有限公司 A kind of diesel vehicle soot particle urges combustion catalyst and preparation method thereof

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
RAO YI ET AL: ""Synthesis of doped MnOx/diatomite composites for catalyzing ozone decomposition"", 《CERAMICS INTERNATIONAL》 *
何杰等: "《工业催化》", 31 July 2014, 中国矿业大学出版社 *
刘建周等: "《工业催化工程》", 30 June 2018, 中国矿业大学出版社 *
顾玉林等: ""臭氧分解催化剂的制备及性能研究"", 《工业催化》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113209982A (en) * 2021-05-10 2021-08-06 四川宝英胜达环保材料有限公司 Efficient ozone catalyst suitable for normal temperature and pressure and preparation method thereof
CN114618475A (en) * 2022-04-06 2022-06-14 上海复荣科技(集团)有限公司 Preparation method of flexible manganese-based catalyst for decomposing ozone
CN114618475B (en) * 2022-04-06 2024-04-12 上海复荣科技(集团)有限公司 Preparation method of flexible manganese-based catalyst for decomposing ozone
CN115121258A (en) * 2022-07-28 2022-09-30 无锡威孚环保催化剂有限公司 Ozone eliminating catalyst and preparation method thereof

Similar Documents

Publication Publication Date Title
CN108514878B (en) Monoatomic noble metal catalyst, preparation method thereof and application thereof in low-temperature catalytic oxidation of formaldehyde
CN109985633A (en) Ozone decomposition catalyst and preparation method thereof
CN106622211B (en) A kind of catalytic ozonation material and its preparation method and application
CN108686650B (en) Cryptomelane type manganese dioxide, preparation method and application thereof
CN104607240A (en) Bi/g-C3N4 semimetal-organic composite photocatalyst and preparation method
CN102198404A (en) Silver-supported nano manganese dioxide catalyst and preparation method and application thereof
CN107126959B (en) A kind of attapulgite load CoTiO3-CeO2Hetero-junctions SCR low-temperature denitration catalyst and preparation method thereof
CN105833901B (en) A kind of PrOx-MnOx/ SAPO-34 low-temperature SCR catalyst for denitrating flue gas and the preparation method and application thereof
CN109647495B (en) Preparation method of nickel-based methane dry reforming catalyst
CN111036236A (en) Cobaltosic oxide in-situ coated silica mesoporous sphere surface supported noble metal catalyst and preparation method and application thereof
CN104475087B (en) Preparation method for denitration catalyst
CN108187690A (en) A kind of cobalt manganese composite oxide loaded catalyst that formaldehyde is removed for room temperature and preparation method thereof
CN109603807B (en) Modified activated carbon Ce-Nb/TiO2@ AC low-temperature efficient desulfurization and denitrification catalyst and preparation method thereof
CN113117722A (en) For normal temperature NH3Preparation method of-SCR denitration atomic-level active site catalyst
CN106362736A (en) Low-load palladium-platinum core-shell structure catalyst and preparation method and application thereof
CN111686716B (en) WOxLow-temperature SCR (selective catalytic reduction) flue gas denitration catalyst with modified carbon nano tube loaded with metal oxide, and preparation method and application thereof
CN114515569A (en) Biochar in-situ supported manganese dioxide catalyst and preparation method and application thereof
CN110433815A (en) A kind of carbon dioxide methanation nickel-base catalyst and its preparation method and application
CN108786896A (en) A kind of preparation method of noble metal catalyst
CN110433800B (en) Preparation and application of supported ruthenium catalyst with crystal face effect
CN106732547B (en) Demercuration catalyst for low-temperature oxidation of zero-valent mercury in coal-fired flue gas and preparation method thereof
CN114832848B (en) Catalyst and preparation method and application thereof
CN102179252B (en) Cu/CeOx-TiO2 catalyst for selective catalytic oxidization of ammonia and preparation method thereof
CN109603904B (en) Preparation and application of high-efficiency adipic acid flue gas purification catalyst
CN114405504A (en) Low-load noble metal catalyst and preparation method and application thereof

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: 20190709

RJ01 Rejection of invention patent application after publication