Effect of nitridation on visible light photocatalytic behavior of microporous (Ag, Ag2O) co-loaded TiO2
文献类型：期刊论文
| 作者 | Xiong, Fengqiang1; Yang, Minghui1; Zou, Mingming1; Liu, Honghong1; Feng, Lu1; Thomas, Tiju2 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 240页码:137-144 |
| 关键词 | Visible Light Photocatalysis Tio2 Local Surface Plasmonic Resonance Effects Heterojunction Nitridation |
| ISSN号 | 1387-1811 |
| DOI | 10.1016/j.micromeso.2016.11.018 |
| 文献子类 | Article |
| 英文摘要 | A simple solvothermal approach with post-calcination is used to obtain (Ag, Ag2O) co-loaded TiO2 microspheres with high specific surface area (43.8 m(2)g(-1)) and desirable visible light photocatalytic degradation (64% after 2 h visible light irradiation). Generally, N-doping of TiO2 via nitridation using NH3 improves the visible light absorption property of material. However, nitridation of (Ag, Ag2O) co-loaded TiO2 results in a deleterious impact on the photocatalytic performance (around 20% after 2 h visible light irradiation). This is because nitridation of Ag-Ag2O-TiO2 results in (a) reduction of Ag2O to Ag and (b) Ag agglomeration and grain growth on TiO2 particles. These results in fact imply that in as-synthesized (Ag, Ag2O) co-loaded TiO2 systems, local surface plasmonic resonance (associated with of 5-12 nm Ag particles) aids in enhanced broad band visible light absorption; furthermore the heterojunction between TiO2 and Ag2O improves efficiency with which photogenerated carriers become available for photo catalysis. In all cases we show through selective radical quenching experiments that singlet oxygen is the primary reason for the dye degradation observed. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | ZNS QUANTUM DOTS ; DOPED TIO2 ; TITANIUM-DIOXIDE ; EFFICIENT ; DECOLORIZATION ; NANOPARTICLES ; IRRADIATION ; PARTICLES ; REMOVAL ; PURE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000395604600017 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169442]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yang, Minghui; Thomas, Tiju |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Xiong, Fengqiang,Yang, Minghui,Zou, Mingming,et al. Effect of nitridation on visible light photocatalytic behavior of microporous (Ag, Ag2O) co-loaded TiO2[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,240:137-144. |
| APA | Xiong, Fengqiang,Yang, Minghui,Zou, Mingming,Liu, Honghong,Feng, Lu,&Thomas, Tiju.(2017).Effect of nitridation on visible light photocatalytic behavior of microporous (Ag, Ag2O) co-loaded TiO2.MICROPOROUS AND MESOPOROUS MATERIALS,240,137-144. |
| MLA | Xiong, Fengqiang,et al."Effect of nitridation on visible light photocatalytic behavior of microporous (Ag, Ag2O) co-loaded TiO2".MICROPOROUS AND MESOPOROUS MATERIALS 240(2017):137-144. |
入库方式： OAI收割
来源：大连化学物理研究所
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