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1. WO2019052167 - NITROGEN-DOPED MESOPOROUS CARBON-WRAPPED TITANIUM DIOXIDE COMPOSITE PHOTOCATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Publication Number WO/2019/052167
Publication Date 21.03.2019
International Application No. PCT/CN2018/082910
International Filing Date 13.04.2018
IPC
B01J 37/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
B01J 27/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
24Nitrogen compounds
B01J 27/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
20Carbon compounds
B01J 21/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
B01D 53/86 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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 or aerosols
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
B01D 53/72 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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 or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
72Organic compounds not provided for in groups B01D53/48-B01D53/7097
CPC
B01D 2255/20707
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
20Metals or compounds thereof
207Transition metals
20707Titanium
B01D 2255/802
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
80Type of catalytic reaction
802Photocatalytic
B01D 2257/7027
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
702Hydrocarbons
7027Aromatic hydrocarbons
B01D 2257/708
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
708Volatile organic compounds V.O.C.'s
B01D 53/8668
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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,
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
8668Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
B01J 27/24
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
24Nitrogen compounds
Applicants
  • 广东工业大学 GUANGDONG UNIVERSITY OF TECHNOLOGY [CN]/[CN]
Inventors
  • 刘宏利 LIU, Hongli
  • 马亚萍 MA, Yaping
  • 安太成 AN, Taicheng
  • 李桂英 LI, Guiying
  • 陈江耀 CHEN, Jiangyao
Agents
  • 广州市华学知识产权代理有限公司 GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201710830931.815.09.2017CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) NITROGEN-DOPED MESOPOROUS CARBON-WRAPPED TITANIUM DIOXIDE COMPOSITE PHOTOCATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
(FR) PHOTOCATALYSEUR COMPOSITE DE DIOXYDE DE TITANE MÉSOPOREUX DOPÉ À L'AZOTE ENROBÉ DE CARBONE, SON PROCÉDÉ DE PRÉPARATION ET SON APPLICATION
(ZH) 一种氮掺杂介孔碳包裹的二氧化钛复合光催化剂及其制备方法和应用
Abstract
(EN)
A nitrogen-doped mesoporous carbon-wrapped titanium dioxide composite photocatalyst, a preparation method therefor and an application thereof. The preparation method comprises the following steps: dissolving an organic ligand and Ti(OC3H7)4 into a mixed solution of methanol and DMF according to a certain ratio, and performing a hydrothermal synthesis reaction to obtain a titanium-based metal organic framework material (Ti-MOF) by means of centrifugation and drying; and pyrolyzing the obtained Ti-MOF in inert atmosphere, and then performing oxidation etching to prepare a nitrogen-doped mesoporous carbon-wrapped TiO2 composite photocatalyst. The obtained composite photocatalyst not only facilitates the adsorption, enrichment and mass transfer of low-concentration VOCs, but also can efficiently degrade the VOCs by driving of sunlight. The composite photocatalyst has high degradation activity and stability in catalytic purification of the VOCs by visible light. Moreover, the catalyst has ease of synthesis, low preparation costs, and broad environmental protection application potential.
(FR)
Un photocatalyseur composite de dioxyde de titane mésoporeux dopé à l'azote enrobé de carbone, son procédé de préparation et son application. Le procédé de préparation comprend les étapes suivantes : dissoudre un ligand organique et du Ti(OC3H7)4 dans une solution mixte de méthanol et de DMF selon un certain rapport, et réaliser une réaction de synthèse hydrothermale pour obtenir un matériau de structure organométallique à base de titane (Ti-MOF) au moyen d'une centrifugation et d'un séchage; et effectuer la pyrolyse du Ti-MOF obtenu dans une atmosphère inerte, puis la réaliser une attaque par oxydation pour préparer un photocatalyseur composite TiO2 enrobé de carbone mésoporeux dopé à l'azote. Le photocatalyseur composite obtenu facilite non seulement l'adsorption, l'enrichissement et le transfert de masse de COV à faible concentration, mais peut également dégrader efficacement les COV par la lumière du soleil. Le photocatalyseur composite présente une activité de dégradation et une stabilité élevées dans la purification catalytique des COV par la lumière visible. De plus, le catalyseur présente une facilité de synthèse, de faibles coûts de préparation et un large potentiel d'application de protection environnementale.
(ZH)
一种氮掺杂介孔碳包裹的二氧化钛复合光催化剂及其制备方法和应用。制备方法包括以下步骤:将有机配体和Ti(OC 3H 7) 4按一定比例置于甲醇和DMF的混合液中溶解,并进行水热合成反应,经离心,干燥后,得到钛基金属有机骨架材料(Ti‑MOF);将所得的Ti‑MOF在惰性气氛中进行热解,随后经氧化刻蚀,制得氮掺杂介孔碳包裹TiO 2复合光催化剂。所得复合光催化剂不仅有利于低浓度VOCs的吸附富集和传质,而且在太阳光驱动下可高效降解VOCs。在可见光催化净化VOCs中具有高的降解活性和稳定性,且催化剂合成简单、制备成本低,具有广阔的环境保护应用潜力。
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