Mechanism of dichloromethane disproportionation over mesoporous TiO2 under low temperature
文献类型：期刊论文
| 作者 | Deng, Yuzhou1,2; Peng, Shengpan1,2; Liu, Haidi1,3; Li, Shuangde1,3; Chen, Yunfa1,3 |
| 刊名 | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 13期号:2页码:12 |
| ISSN号 | 2095-2201 |
| 关键词 | Dichloromethane Disproportionation Mechanism Anatase (001) Water dissociation |
| DOI | 10.1007/s11783-019-1113-8 |
| 英文摘要 | Mesoporous TiO2 was synthesized via nonhydrolytic template-mediated sol-gel route. Catalytic degradation performance upon dichloromethane over as-prepared mesoporous TiO2, pure anatase and rutile were investigated respectively. Disproportionation took place over as-made mesoporous TiO2 and pure anatase under the presence of water. The mechanism of disproportionation was studied by in situ FTIR. The interaction between chloromethoxy species and bridge coordinated methylenes was the key step of disproportionation. Formate species and methoxy groups would be formed and further turned into carbon monoxide and methyl chloride. Anatase (001) played an important role for disproportionation in that water could be dissociated into surface hydroxyl groups on such structure. As a result, the consumed hydroxyl groups would be replenished. In addition, there was another competitive oxidation route governed by free hydroxyl radicals. In this route, chloromethoxy groups would be oxidized into formate species by hydroxyl radicals transfering from the surface of TiO2. The latter route would be more favorable at higher temperature. (c) Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
| WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; CATALYTIC COMBUSTION ; MIXED-OXIDE ; PHOTOCATALYTIC DEGRADATION ; OXIDATION ; CHLOROBENZENE ; TRICHLOROETHYLENE ; PERFORMANCES ; CH2CL2 ; VOCS |
| 资助项目 | Key Program of the Chinese Academy of Sciences[ZDRW-ZS-2016-5-3] ; National Key Research and Development Program of China[2017YFC0211503] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | HIGHER EDUCATION PRESS |
| WOS记录号 | WOS:000464615000001 |
| 资助机构 | Key Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28264]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Yunfa |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Yuzhou,Peng, Shengpan,Liu, Haidi,et al. Mechanism of dichloromethane disproportionation over mesoporous TiO2 under low temperature[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2019,13(2):12. |
| APA | Deng, Yuzhou,Peng, Shengpan,Liu, Haidi,Li, Shuangde,&Chen, Yunfa.(2019).Mechanism of dichloromethane disproportionation over mesoporous TiO2 under low temperature.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,13(2),12. |
| MLA | Deng, Yuzhou,et al."Mechanism of dichloromethane disproportionation over mesoporous TiO2 under low temperature".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 13.2(2019):12. |
入库方式： OAI收割
来源：过程工程研究所
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