CN102553575B - Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals) - Google Patents

Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals) Download PDF

Info

Publication number
CN102553575B
CN102553575B CN201210029241.XA CN201210029241A CN102553575B CN 102553575 B CN102553575 B CN 102553575B CN 201210029241 A CN201210029241 A CN 201210029241A CN 102553575 B CN102553575 B CN 102553575B
Authority
CN
China
Prior art keywords
ceo
mno
catalyst
photo
concerted catalysis
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.)
Expired - Fee Related
Application number
CN201210029241.XA
Other languages
Chinese (zh)
Other versions
CN102553575A (en
Inventor
李远志
侯静涛
任璐
代洋
胡胜鹰
赵修建
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.)
Wuhan University of Technology WUT
Original Assignee
Wuhan University of Technology WUT
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 Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN201210029241.XA priority Critical patent/CN102553575B/en
Priority to PCT/CN2012/071301 priority patent/WO2013117017A1/en
Publication of CN102553575A publication Critical patent/CN102553575A/en
Application granted granted Critical
Publication of CN102553575B publication Critical patent/CN102553575B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/009—Preparation by separation, e.g. by filtration, decantation, screening
    • 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
    • B01D53/88—Handling or mounting catalysts
    • B01D53/885—Devices in general for catalytic purification of waste gases
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/32—Manganese, technetium or rhenium
    • B01J23/34—Manganese
    • 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
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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
    • B01D2255/40—Mixed oxides
    • 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
    • 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
    • B01D2257/7022—Aliphatic 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
    • B01D2257/702—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The invention relates to a preparation method of a CeO2-MnO2 composite catalyst with an efficient photothermal concerted catalytic purification function for VOCs (Volatile Organic Chemicals), comprising the following steps of: (1) weighting Ce(III) salts and KMnO4 and stirring by utilizing magnetic force to obtain a mixed solution; (2) transferring the mixed solution into a reaction kettle to carry out hydrothermal oxidation reduction reaction; and (3) after the reaction is ended and the reaction kettle is cooled to the room temperature, taking out sediments in an inner polytetrafluoroethylene container, filtering, cleaning and drying. The preparation method has the beneficial effects that: (1) the catalyst provided by the invention has catalytic activity for efficient and low-temperature photothermal concerted catalytic oxidation for the VOCs, the photothermal concerted catalytic activity of the catalyst is far higher than the thermal catalytic activity of the catalyst at the same reaction temperature and the photothermal concerted catalytic activity of the catalyst of pure CeO2 or MnO2, and the catalytic purification effect is improved; (2) raw materials are low in cost and easy to obtain, the reaction condition is mild, the process is simple and industrialization is easy to realize; and (3) the cost is remarkably reduced.

Description

The CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst
Technical field
The present invention relates to a kind of CeO 2-MnO 2the preparation method of composite catalyst, this composite catalyst, under light heat synergetic action condition, can purify the volatile organic contaminants such as benzene, toluene and acetone by efficient catalytic.
Background technology
Volatile organic contaminant (VOCs), as: benzene, toluene, formaldehyde, acetone etc., not only have great harm to health, and can cause serious environmental pollution.The improvement technology of VOCs comprises absorption, catalytic oxidation and photocatalysis etc., wherein take adsorption technology that active carbon or molecular sieve be adsorbent, catalytic oxidation technical research report that the carried noble metal of take is catalyst at most.But be subject to the restriction of adsorption capacity, need be to the adsorbent processing of regenerating, and though loaded noble metal catalyst catalytic activity is high, but expensive, these have greatly limited adsorption technology, the extensive use of the catalytic oxidation technology based on noble metal in VOCs administers, and are therefore badly in need of research and development are low-cost, have efficient catalytic purifying VOCs new catalytic material and new technology.CeO 2, manganese dioxide, cerium manganese composite oxides gets more and more people's extensive concerning because having good catalytic oxidation performance.US Patent No. 6458741 adopts dipping decomposition method, precipitation sedimentation and coprecipitation to prepare containing cerium binary or multicomponent composite oxide, and precious metals pt, Pd are carried on these composite oxides, the composite catalyst of gained has good VOCs low-temperature catalytic oxidation activity.Chinese patent CN200510093318.2 adopts infusion process to prepare support type Mn-Ce composite oxide catalytic, and this catalyst has good catalytic oxidation activity to VOCs.The people such as Tang are with (NH 4) 2ce (NO 3) 6, Mn (NO 3) 2.6H 2o, (NH 4) 2ce (NO 3) 6with citric acid be raw material, adopt coprecipitation to prepare MnO x-CeO 2complex catalyst, this catalyst is at 100 ℃, and the conversion ratio of formaldehyde reaches 100%, and has good stability (F. Tang, Y.G. Li, M. Huang, et al. appl. Catal. B2006,62,265).The people such as Delimaris are with Ce (NO 3) 6, Mn (NO 3) 2with urea be raw material, adopt urea-nitrate combustion method to prepare MnO x-CeO 2composite oxides, this catalyst has good catalytic oxidation activity (D. Delimaris, T. Ioannides. to VOCs appl. Catal. B2008,84,303).
CeO 2not only there is good catalytic oxidation performance, as a kind of broadband N-shaped semiconductor, also there is certain photocatalytic activity.The people such as nearest Li Yuanzhi have found mesoporous nano CeO 2there is good oxygen ion conduction coupling photo-thermal concerted catalysis performance, for gas pollutants such as benzene, cyclohexane, acetone, show efficient low-temperature catalytic oxidation activity and stability (Y.Z, Li, * Q. Sun, M. Kong, et al. j. Phys. Chem. C, 2011, 115, 14050).
Summary of the invention
Technical problem to be solved by this invention is to propose a kind of CeO with efficient photo-thermal concerted catalysis purifying VOCs for above-mentioned prior art 2-MnO 2the preparation method of composite catalyst, this preparation method's raw material is cheap and easy to get, technique simple and be easy to industrialization.
The present invention solves the problems of the technologies described above adopted technical scheme, has the CeO of efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst, is characterized in that including following steps:
1) take 0.04mol ~ 0.01molCe (III) salt and 0.01mol ~ 0.03molKMnO 4, successively joining in the beaker that water is housed, magnetic agitation, obtains Ce (III) salt and KMnO 4mixed solution;
2) mixed solution is gone in the stainless steel cauldron with polytetrafluoroethylliner liner, after good seal, carry out hydrothermal oxidization reduction reaction;
3) after having reacted, question response still is cooled to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains having the CeO of light heat synergetic action 2-MnO 2composite catalyst.
Press such scheme, described Ce (III) salt is cerous nitrate, cerium chloride or cerous sulfate.
Press such scheme, the reaction temperature of described hydrothermal oxidization reduction reaction is 90 ℃～180 ℃, and the reaction time is 12～72 hours.
The present invention utilizes CeO 2good photo-thermal concerted catalysis oxidation susceptibility and MnO 2good heat catalytic oxidation performance, Ce (III) salt of take is reducing agent, KMnO 4for oxidant, adopt hydrothermal oxidization reduction synthesis process, under gentle reaction condition, the design of novelty CeO 2-MnO 2method for preparing composite catalyst, has realized at CeO 2-MnO 2active component CeO in composite catalyst 2and MnO 2between concerted catalysis effect; Find first simultaneously, compare with traditional heat catalytic oxidation, under photo-thermal acting in conjunction, gained CeO 2-MnO 2the catalytic oxidation activity of composite catalyst significantly improves, and its have its source in Lattice Oxygen in composite catalyst and reactivity of organic pollutant molecule are significantly improved under light heat synergetic action.Gained CeO of the present invention 2-MnO 2the photo-thermal concerted catalysis oxidation activity of composite catalyst is far above simple CeO 2or MnO 2photo-thermal concerted catalysis oxidation activity and MnO 2-CeO 2the heat catalytic oxidation of composite oxides is active, gained CeO 2-MnO 2the gas phase volatile organic contaminants such as composite catalyst energy efficient catalytic degraded benzene, toluene, acetone.
The beneficial effect of patent of the present invention is:
1) the prepared CeO of the present invention 2-MnO 2composite catalyst, has the catalytic activity that the concerted catalysis of high efficient cryogenic photo-thermal is oxidized VOCs, and its photo-thermal concerted catalysis activity is active far above the thermocatalytic under same reaction temperature, far above simple CeO 2or MnO 2photo-thermal concerted catalysis active, greatly improved VOC catalytic purification efficiency;
2) CeO that this patent is invented 2-MnO 2method for preparing composite catalyst, raw material is cheap and easy to get, reaction condition is gentle, technique is simple, is easy to industrialization;
3) the prepared CeO of the present invention 2-MnO 2composite catalyst, without carried noble metal, has significantly reduced cost.
Accompanying drawing explanation
In following Fig. 1-Figure 11, curve A is photo-thermal concerted catalysis, and curve B is thermocatalytic:
Fig. 1 is embodiment 1 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 120 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 2 is embodiment 1 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 160 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 3 is embodiment 1CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) at 200 ℃, photo-thermal concerted catalysis and thermocatalytic, CeO 2photo-thermal concerted catalysis (curve C) and CeO 2photo-thermal concerted catalysis (curve D) the 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 4 is embodiment 1 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l acetone of degrading generate CO 2change in concentration comparison diagram;
Fig. 5 is embodiment 1 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l toluene of degrading generate CO 2change in concentration comparison diagram;
Fig. 6 is embodiment 2 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 7 is embodiment 3 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 8 is embodiment 4 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 3:1) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Fig. 9 is embodiment 5 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:1) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Figure 10 is embodiment 6 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 1:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram;
Figure 11 is embodiment 7 CeO 2-MnO 2catalyst (Ce/Mn mol ratio 2:3) is at 200 ℃, and photo-thermal concerted catalysis and the thermocatalytic 100 μ l benzene of degrading generate CO 2change in concentration comparison diagram.
The specific embodiment
Below in conjunction with embodiment, further set forth substantive distinguishing features of the present invention and significant progressive, but the cited case does not limit protection domain of the present invention.
embodiment 1:
The CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst (Ce/Mn mol ratio is 1:3) is as follows:
(1) take 0.01molCe (NO 3) 36H 2o and 0.03molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 120 ℃, react 24 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2composite catalyst.
application example 1
The CeO that embodiment 1 is obtained 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, specific experiment step is as follows:
(1) take embodiment 1 gained CeO 2-MnO 2catalyst and distilled water are with 0.5g: 20ml ratio is mixed, and ultrasonic processing 10min, obtains suspension, suspension is transferred in the glass culture dish that diameter is 11mm, and dries under infrared lamp;
(2) culture dish is placed in the gas phase photo-thermal catalytic reactor that a top is provided with silica glass window, silica glass window is placed a high-pressure sodium lamp (250W), reactor is placed on controllable electric hot plate, and be connected with gas chromatograph by automatic sampling device, open high-pressure sodium lamp, regulate electric hot plate, catalytic reaction temperature keeps 120 ℃;
(3) work as CO 2concentration keep stable after, to injecting gas in reactor, the CO that catalytic reaction produces 2concentration detects analysis online with gas chromatograph.
The CO that application example 1 photo-thermal concerted catalysis degraded benzene produces 2change in concentration and time relationship are shown in the curve A in Fig. 1.At 120 ℃, after photo-thermal concerted catalysis 60min, CO 2increment is 3948mg/m 3, CO 2generating rate is 1.5 μ mol/minm 3.
comparison example 1
The CeO that embodiment 1 is obtained 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, specific experiment step and application example 1 are basic identical, and difference is, in catalytic reaction process, to close high-pressure sodium lamp.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 1 2the relation of change in concentration and time is shown in the curve B in Fig. 1, after thermocatalytic 60min, and CO 2increment is 715mg/m 3, CO 2generating rate be 0.27 μ mol/minm 3.
As shown in Figure 1, CeO at 120 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 5.56 times.
application example 2
By the resulting CeO of embodiment 1 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic reaction temperature is 160 ℃.
The application example 2 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve A in Fig. 2.After photo-thermal concerted catalysis 60min, CO 2increment is 14346mg/m 3, CO 2generating rate be 5.43 μ mol/ minm 3.
comparison example 2
The CeO that embodiment 1 is obtained 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 160 ℃.
The comparison example 2 thermocatalytics CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve B in Fig. 2, after thermocatalytic 60min, and CO 2increment is 5528mg/m 3, CO 2generating rate be 2.1 μ mol/minm 3.
As shown in Figure 2, CeO at 160 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 2.60 times.
application example 3:
The CeO that embodiment 1 is obtained 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic reaction temperature is 200 ℃.
The application example 3 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve A in Fig. 3, after photo-thermal concerted catalysis 35min, and CO 2increment is 40179mg/m 3, CO 2generating rate be 26.1 μ mol/ minm 3.
comparison example 3(a)
The CeO that embodiment 1 is obtained 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic reaction temperature is 200 ℃.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 3 2the relation of change in concentration and time is shown in the curve B in Fig. 3, after thermocatalytic 35min, and CO 2increment is 22094mg/m 3, CO 2generating rate be 14.4 μ mol/minm 3.
comparison example 3(b)
Take 15gCe (NO 3) 36H 2o and 6g urea, join in the 250ml round-bottomed flask that 40ml distilled water is housed ultrasonic processing.Flask is put into micro-wave oven (50Hz, 800W), add thermal response 30min.Reaction end, takes out precipitation, with distilled water filtration, washing, oven dry, then at 400 ℃, calcines 2h, obtains nano Ce O 2powder.
By resulting CeO 2the collaborative thermocatalytic of the catalyst photo-thermal 100 μ l benzene of degrading, catalytic reaction temperature is 200 ℃.CeO 2the photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve C in Fig. 3, after photo-thermal concerted catalysis 35min, and CO 2increment is 16305mg/m 3, CO 2generating rate be 10.59 μ mol/minm 3.
comparison example 3(c)
Take 0.01molMn (NO 3) 2and 0.02molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Mn (NO 3) 2with KMnO 4mixed solution; Mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 120 ℃, react 24 hours; After having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains MnO 2powder.
By resulting MnO 2the collaborative thermocatalytic of the catalyst photo-thermal 100 μ l benzene of degrading, catalytic reaction temperature is 200 ℃.MnO 2the photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2change in concentration and time relationship are shown in the curve D in Fig. 3, after photo-thermal concerted catalysis 35min, and CO 2increment is 5147mg/m 3, CO 2generating rate be 3.34 μ mol/minm 3.
As shown in Figure 3, CeO at 200 ℃ 2-MnO 2the catalysis photo-thermal concerted catalysis 100 μ l benzene CO that degrade 2generating rate is thermocatalytic 1.82 times, is CeO 22.46 times of photo-thermal concerted catalysis are MnO 27.81 times of photo-thermal concerted catalysis.
application example 4
By the resulting CeO of embodiment 1 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l acetone of degrading, catalytic temperature is 200 ℃.
The application example 4 photo-thermal concerted catalysis CO that 100 μ l acetone produce that degrades 2the relation of change in concentration and time is shown in the curve A in Fig. 4.After photo-thermal concerted catalysis 15min, CO 2increment is 24626mg/m 3, CO 2generating rate be 37.3 μ mol/minm 3.
comparison example 4
By the resulting CeO of embodiment 1 2-MnO 2the oxide catalyst thermocatalytic 100 μ l acetone of degrading, catalytic temperature is 200 ℃.
The comparison example 4 thermocatalytics CO that 100 μ l acetone produce that degrades 2the relation of change in concentration and time is shown in the curve B in Fig. 4, after thermocatalytic 15min, and CO 2concentration increment is 5682mg/m 3, CO 2generating rate be 8.6 μ mol/minm 3.
As shown in Figure 4, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l acetone of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 4.33 times.
application example 5
By the resulting CeO of embodiment 1 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l toluene of degrading, catalytic temperature is 200 ℃.
The application example 5 photo-thermal concerted catalysis CO that 100 μ l toluene produce that degrades 2change in concentration and time relationship are shown in the curve A in Fig. 5.After photo-thermal concerted catalysis 30min, CO 2increment is 13053mg/m 3, CO 2generating rate be 9.89 μ mol/minm 3.
comparison example 5
By the resulting CeO of embodiment 1 2-MnO 2the composite catalyst thermocatalytic 100 μ l toluene of degrading, catalytic temperature is 200 ℃.
The comparison example 5 thermocatalytics CO that 100 μ l toluene produce that degrades 2change in concentration and time relationship are shown in the curve B in Fig. 5, after thermocatalytic 30min, and CO 2increment is 3167mg/m 3, CO 2generating rate be 2.40 μ mol/minm 3.
As shown in Figure 5, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l toluene of catalyst photo-thermal concerted catalysis 2generating rate is 4.12 times that thermocatalytic is used.
embodiment 2
The CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst (Ce/Mn mol ratio is 1:3) is as follows:
(1) take 0.01molCe (NO 3) 36H 2o and 0.03molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 180 ℃, react 24 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2composite catalyst.
application example 1:
By the resulting CeO of embodiment 2 2-MnO 2composite catalyst is answered the photo-thermal concerted catalysis 100 μ l benzene of degrading, and catalytic temperature is 200 ℃.
The application example 2 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve A in Fig. 6, after illumination 60min, and CO 2increment is 24737mg/m 3, CO 2generating rate be 9.37 μ mol/minm 3.
comparison example 1
By the resulting CeO of embodiment 2 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The comparison example 1 thermocatalytic CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve B in Fig. 6, CO after illumination 60min 2concentration increment is 4634mg/m 3, CO 2generating rate be 1.76 μ mol/minm 3.
As shown in Figure 6, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 5.32 times.
embodiment 3
The CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst (Ce/Mn mol ratio is 1:3) is as follows:
(1) take 0.01molCe (NO 3) 36H 2o and 0.03molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 90 ℃, react 15 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2catalyst.
application example 1
By the resulting CeO of embodiment 3 2-MnO 2the catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The application example 1 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2change in concentration and time relationship are shown in the curve A in Fig. 7.After photo-thermal concerted catalysis 20min, CO 2increment is 49514mg/m 3, CO 2generating rate be 56.3 μ mol/minm 3.
comparison example 1
By the resulting CeO of embodiment 3 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 1 2the relation of change in concentration and time is shown in the curve B in Fig. 7, after thermocatalytic 15min, and CO 2concentration increment is 36841mg/m 3, CO 2generating rate be 41.9 μ mol/minm 3.
As shown in Figure 7, CeO at 200 ℃ 2-MnO 2the degrade CO of 2 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is 1.34 times of thermocatalytic (curve B).
embodiment 4
The CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst (Ce/Mn mol ratio is 3:1) is as follows:
(1) take the Ce (NO of 0.03mol 3) 36H 2the KMnO of O and 0.01mol 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 90 ℃, react 15 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2catalyst.
application example 1
By the resulting CeO of the embodiment of the present invention 4 2-MnO 2the catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The application example 1 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve A in Fig. 8.After photo-thermal concerted catalysis 30min, CO 2increment is 46999mg/m 3, CO 2generating rate be 35.6 μ mol/minm 3.
comparison example 1
By the resulting CeO of the embodiment of the present invention 4 2-MnO 2the composite oxide catalysts thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The comparison example 1 thermocatalytic CO that 100 μ l benzene produce that degrades 2the relation of change in concentration and time is shown in the curve B in Fig. 8.After thermocatalytic 30min, CO 2increment is 33866mg/m 3, CO 2generating rate be 25.7 μ mol/minm 3.
As shown in Figure 8, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 1.39 times.
embodiment 5
There is the active CeO of efficient photo-thermal concerted catalysis 2-MnO 2the preparation method of catalyst (Ce/Mn mol ratio is 1:1) is as follows:
(1) take 0.02molCe (NO 3) 36H 2o and 0.02molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 90 ℃, react 15 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2catalyst.
application example 1
By the resulting CeO of the embodiment of the present invention 5 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The application example 1 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2change in concentration and time relationship are shown in the curve A in Fig. 9.After photo-thermal concerted catalysis 40min, CO 2increment is 40110mg/m 3, CO 2generating rate be 22.8 μ mol/minm 3.
comparison example 1
By the resulting CeO of embodiment 4 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 1 2change in concentration and time relationship are shown in the curve B in Fig. 9, after thermocatalytic 40min, and CO 2concentration increment is 31050mg/m 3, CO 2generating rate be 17.6 μ mol/minm 3.
As shown in Figure 9, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 1.3 times.
embodiment 6
There is the active CeO of efficient photo-thermal concerted catalysis 2-MnO 2the preparation method of catalyst (Ce/Mn mol ratio is 1:3) is as follows:
(1) take 0.01molCeCl 37H 2o and 0.03molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce (NO 3) 36H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 120 ℃, react 24 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2catalyst.
application example 1
By the resulting CeO of the embodiment of the present invention 6 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The application example 1 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2change in concentration and time relationship are shown in the curve A in Figure 10.After photo-thermal concerted catalysis 30min, CO 2increment is 13553mg/m 3, CO 2generating rate be 10.27 μ mol/minm 3.
comparison example 1
By the resulting CeO of embodiment 6 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 1 2change in concentration and time relationship are shown in the curve B in Figure 10, after thermocatalytic 30min, and CO 2increment is 4667mg/m 3, CO 2generating rate be 3.54 μ mol/minm 3.
As shown in Figure 10, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 2.9 times.
embodiment 7
There is the active CeO of efficient photo-thermal concerted catalysis 2-MnO 2the preparation method of catalyst (Ce/Mn mol ratio is 2:3) is as follows:
(1) take 0.005molCe 2(SO 4) 38H 2o and 0.015molKMnO 4, joining in the beaker that 60ml water is housed, magnetic agitation, obtains Ce 2(SO4) 38H 2o and KMnO 4mixed solution;
(2) mixed solution is gone in the stainless steel cauldron of 100 ml with polytetrafluoroethylliner liner, after good seal, at 120 ℃, react 24 hours;
(3) after having reacted, question response still cool to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains CeO 2-MnO 2catalyst.
application example 1
By the resulting CeO of the embodiment of the present invention 7 2-MnO 2the composite catalyst photo-thermal concerted catalysis 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The application example 1 photo-thermal concerted catalysis CO that 100 μ l benzene produce that degrades 2change in concentration and time relationship are shown in the curve A in Figure 11.After photo-thermal concerted catalysis 40min, CO 2increment is 4582mg/m 3, CO 2generating rate be 2.60 μ mol/minm 3.
comparison example 1
By the resulting CeO of embodiment 7 2-MnO 2the composite catalyst thermocatalytic 100 μ l benzene of degrading, catalytic temperature is 200 ℃.
The thermocatalytic CO that 100 μ l benzene produce that degrades in comparison example 1 2change in concentration and time relationship are shown in the curve B in Figure 11, after thermocatalytic 40min, and CO 2concentration increment is 1284mg/m 3, CO 2generating rate be 0.73 μ mol/minm 3.
As shown in Figure 11, CeO at 200 ℃ 2-MnO 2the degrade CO of 100 μ l benzene of catalyst photo-thermal concerted catalysis 2generating rate is thermocatalytic 3.57 times.

Claims (2)

1. the CeO with efficient photo-thermal concerted catalysis purifying VOCs 2-MnO 2the preparation method of composite catalyst, is characterized in that including following steps:
1) take 0.04mol ~ 0.01molCe (III) salt and 0.01mol ~ 0.03molKMnO 4, successively joining in the beaker that water is housed, magnetic agitation, obtains Ce (III) salt and KMnO 4mixed solution;
2) mixed solution is gone in the stainless steel cauldron with polytetrafluoroethylliner liner, after good seal, carry out hydrothermal oxidization reduction reaction, the reaction temperature of described hydrothermal oxidization reduction reaction is 90 ℃～180 ℃, and the reaction time is 12～72 hours;
3) after having reacted, question response still is cooled to room temperature, takes out the precipitation in polytetrafluoroethylliner liner, filters, washs, dries, and obtains having the CeO of light heat synergetic action 2-MnO 2composite catalyst.
2. by the CeO with efficient photo-thermal concerted catalysis purifying VOCs claimed in claim 1 2-MnO 2the preparation method of composite catalyst, is characterized in that described Ce (III) salt is cerous nitrate, cerium chloride or cerous sulfate.
CN201210029241.XA 2012-02-10 2012-02-10 Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals) Expired - Fee Related CN102553575B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210029241.XA CN102553575B (en) 2012-02-10 2012-02-10 Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals)
PCT/CN2012/071301 WO2013117017A1 (en) 2012-02-10 2012-02-20 Preparation method for ceo2-mno2 composite catalyst with efficient photothermal concerted catalytic purification function for vocs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210029241.XA CN102553575B (en) 2012-02-10 2012-02-10 Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals)

Publications (2)

Publication Number Publication Date
CN102553575A CN102553575A (en) 2012-07-11
CN102553575B true CN102553575B (en) 2014-02-19

Family

ID=46400976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210029241.XA Expired - Fee Related CN102553575B (en) 2012-02-10 2012-02-10 Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals)

Country Status (2)

Country Link
CN (1) CN102553575B (en)
WO (1) WO2013117017A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331156A (en) * 2013-07-08 2013-10-02 武汉理工大学 Full solar spectrum driving cryptomelane nanorod catalyst, and preparation method and applications thereof
CN104056530A (en) * 2014-07-01 2014-09-24 北京建筑材料科学研究总院有限公司 Contaminated soil thermal decomposition tail gas treatment method
CN104338529A (en) * 2014-10-20 2015-02-11 中国科学院上海硅酸盐研究所 Preparation method of MnOx-CeO2 composite semiconductor catalyst
CN107008336B (en) * 2017-03-31 2020-01-31 山东师范大学 photocatalytic materials SnO2@Fe2O3Preparation and use of
CN106975481B (en) * 2017-04-22 2019-10-25 武汉理工大学 The preparation method of alkaline earth metal doping MnO2 catalyst with efficient photo-thermal concerted catalysis purifying VOCs
CN106944092B (en) * 2017-04-22 2019-10-25 武汉理工大学 A kind of preparation method of the Fe-MnO2 catalyst with efficient photo-thermal concerted catalysis purifying VOCs
CN108659908B (en) * 2018-05-15 2021-06-04 嘉兴亭源农林开发有限公司 Energy-saving environment-friendly biomass fuel
CN108772056B (en) * 2018-06-14 2021-03-09 南京信息工程大学 Preparation of supported cordierite catalyst and photo-thermal synergetic oxidation of VOCs
CN109806884A (en) * 2019-02-22 2019-05-28 上海应用技术大学 A kind of graphene-manganese cerium low temperature SCR denitration catalyst and preparation method thereof
CN112427041B (en) * 2019-08-26 2023-05-12 中国科学院理化技术研究所 Nickel-based catalyst for preparing low-carbon olefin by photo-thermal catalysis of carbon monoxide hydrogenation and preparation method and application thereof
CN111068514B (en) * 2019-12-28 2022-08-12 西安建筑科技大学 VOCs separation catalytic degradation device and catalytic degradation system
CN111282565A (en) * 2020-03-24 2020-06-16 清华大学盐城环境工程技术研发中心 MnCeOxPreparation method and application of catalyst
CN111569859A (en) * 2020-06-24 2020-08-25 辽宁大学 Cerium dioxide and chromium dioxide composite oxygen-containing defect photo-thermal catalyst and preparation method and application thereof
CN112023918A (en) * 2020-09-22 2020-12-04 华中科技大学 Transition metal in-situ doped manganese-based catalyst and preparation method and application thereof
CN112516997B (en) * 2020-11-30 2023-04-18 南京邮电大学 CeO 2 /MnO 2 Method for preparing nano-rod
CN112774664B (en) * 2020-12-30 2023-10-24 中国人民解放军军事科学院国防工程研究院 Nanometer TiO with photo-thermal synergistic effect 2 @MnO 2 Composite material, preparation method and application thereof
CN112619607A (en) * 2021-01-07 2021-04-09 深圳市奇信集团股份有限公司 Formaldehyde adsorbent
CN112844372B (en) * 2021-02-20 2023-12-08 辽宁大学 Bismuth molybdate thermal catalyst containing oxygen vacancy and preparation method and application thereof
CN113648997B (en) * 2021-08-11 2023-11-24 北京工业大学 δ-MnO 2 Method for loading graphene oxide Bi-Pd composite catalyst and application
CN113680343B (en) * 2021-08-24 2023-12-22 武汉理工大学深圳研究院 Three-dimensional cubic CeO 2 /Mn 2 O 3 Preparation method and application of composite photo-thermal catalyst
CN113769757B (en) * 2021-09-09 2023-06-16 武汉理工大学 In-situ photothermal preparation of spinel structure Cu 1.5 Mn 1.5 O 4 Method for preparing catalyst and application thereof
CN115957745B (en) * 2021-10-09 2024-04-30 中国科学院理化技术研究所 TiO2-MnO2Photo-thermal synergistic preparation method of composite sol of high-grade oxidation catalyst
CN113797935B (en) * 2021-10-14 2024-06-25 常州汇清环保科技有限公司 Catalyst for low-temperature efficient treatment of VOCs and preparation method thereof
CN113769735B (en) * 2021-10-21 2023-01-06 南京大学 CeO 2 /MnO 2 Composite photocatalyst and preparation method and application thereof
CN116060015B (en) * 2021-10-29 2024-05-03 中国科学院理化技术研究所 Synthesis method of photo-thermal synergistic adsorption catalyst
CN114558566B (en) * 2022-03-12 2023-08-25 福州大学 Hydrogen sulfide selective oxidation catalyst and preparation method and application thereof
CN114768794B (en) * 2022-04-27 2024-03-15 华南理工大学 Composite manganese oxide catalyst for synchronously removing VOCs and NOx in medium-low temperature flue gas, and preparation method and application thereof
CN115007125A (en) * 2022-07-08 2022-09-06 湘潭大学 Sepiolite-loaded manganese-cerium composite catalyst and preparation method and application thereof
CN115337931A (en) * 2022-08-20 2022-11-15 山东亮剑环保新材料有限公司 Preparation method of rare earth composite catalyst for degrading organic pollutants
CN115569647A (en) * 2022-09-07 2023-01-06 浙江大学杭州国际科创中心 Composite oxide catalyst and preparation method and application thereof
CN115608368B (en) * 2022-10-19 2024-05-07 华南理工大学 Monolithic catalyst with high activity and low cost and preparation method and application thereof
CN115624969A (en) * 2022-10-27 2023-01-20 南京工业大学 Photo-thermal synergistic catalyst and solar energy purifying, ventilating and cooling composite wall structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1631522A (en) * 2004-11-19 2005-06-29 清华大学 Binary composite mesopore oxide material making cerium as base and its preparation
CN1919455A (en) * 2005-08-25 2007-02-28 中国科学院生态环境研究中心 Process for eliminating volatile organic pollutant by catalytic oxidation
CN101028595A (en) * 2006-03-01 2007-09-05 中国科学院大连化学物理研究所 Manganese cerium composite oxide catalyst, its production and use
CN101462049B (en) * 2007-12-20 2011-04-20 苏州工业园区安泽汶环保技术有限公司 Preparation method of high-dispersion manganese-cerium composite oxides
CN101722057A (en) * 2009-11-24 2010-06-09 武汉理工大学 Method for preparing semiconductor oxide catalyst with synergistic effect of light and heat
CN102172523B (en) * 2011-03-04 2012-09-12 湖南大学 Preparation method of medium-low temperature selective catalytic reduction denitration catalyst
CN102344339B (en) * 2011-07-15 2015-03-11 厦门大学 Application of cerium-based catalyst in methane oxyhalogenation methods used for preparing halogenated methane

Also Published As

Publication number Publication date
CN102553575A (en) 2012-07-11
WO2013117017A1 (en) 2013-08-15

Similar Documents

Publication Publication Date Title
CN102553575B (en) Preparation method of CeO2-MnO2 composite catalyst with efficient photothermal synergistic catalytic purification function for VOCs (Volatile Organic Chemicals)
CN106975481B (en) The preparation method of alkaline earth metal doping MnO2 catalyst with efficient photo-thermal concerted catalysis purifying VOCs
Meng et al. Construction of g-C3N4/ZIF-67 photocatalyst with enhanced photocatalytic CO2 reduction activity
Zeng et al. Synergistic effect of tunable oxygen-vacancy defects and graphene on accelerating the photothermal degradation of methanol over Co3O4/rGO nanocomposites
Wei et al. Recent advances in VOCs and CO removal via photothermal synergistic catalysis
CN102527420B (en) Preparation method of bismuth subcarbonate photocatalyst
CN106944092B (en) A kind of preparation method of the Fe-MnO2 catalyst with efficient photo-thermal concerted catalysis purifying VOCs
Chen et al. Promotional effect of Ce-doped V2O5-WO3/TiO2 with low vanadium loadings for selective catalytic reduction of NO x by NH3
Zeng et al. Three-dimensionally ordered macroporous MnSmOx composite oxides for propane combustion: Modification effect of Sm dopant
CN107983338B (en) Method for improving catalytic performance of perovskite type composite metal oxide
CN108097261B (en) Efficient and stable iron-manganese composite oxide catalyst and preparation method and application thereof
CN106064101A (en) A kind of iron-based MOFs catalysis material and preparation and application thereof
CN101703932B (en) Method for preparing Pd and Pt loaded mesoporous manganese oxide for catalytically eliminating VOCs
CN109806884A (en) A kind of graphene-manganese cerium low temperature SCR denitration catalyst and preparation method thereof
CN106391009A (en) Preparation method and application of catalyst for catalytic oxidation of VOCs
Liu et al. Transition metals modified commercial SCR catalysts as efficient catalysts in NH3-SCO and NH3-SCR reactions
CN106861626B (en) Adsorption-photocatalysis dual-function material, preparation method thereof and application thereof in volatile organic gas treatment process
CN104841441B (en) The method for preparing catalyst of hydrolysis oxidation coupled method purification HCN a kind of and application
Yuan et al. 100% N2O inhibition in photocatalytic NOx reduction by carbon particles over Bi2WO6/TiO2 Z-scheme heterojunctions
Zhang et al. Photo-and thermo-catalytic mechanisms for elemental mercury removal by Ce doped commercial selective catalytic reduction catalyst (V2O5/TiO2)
Chen et al. In situ deposition of 0D CeO2 quantum dots on Fe2O3-containing solid waste NH3-SCR catalyst: Enhancing redox and NH3 adsorption ability
Li et al. Controllable synthesis various morphologies of 3D hierarchical MnOx-TiO2 nanocatalysts for photothermocatalysis toluene and NO with free-ammonia
Liao et al. Constructing MOFs-derived Co3O4 microsphere with atomic pn homojunction as an efficient photothermal catalyst for boosting ethyl acetate oxidation under light irradiation
Yang et al. Solvothermal fabrication of activated semi-coke supported TiO2-rGO nanocomposite photocatalysts and application for NO removal under visible light
Zhang et al. Catalytic oxidation of vinyl chloride over Co–Ce composite oxides derived from ZIF-67 template: Effect of cerium incorporation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140219

Termination date: 20150210

EXPY Termination of patent right or utility model