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| Using electrochemical methods to study the promotion mechanism of the photoelectric conversion performance of Ag-modified mesoporous g-C3N4 heterojunction material | |
| Bu, Yuyu1; Chen, Zhuoyuan1; Li, Weibing2; Chen, ZY (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China. | |
| 2014 | |
| 发表期刊 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 卷号 | 144页码:622-630 |
| 文章类型 | Article |
| 摘要 | Silver (Ag) nanoparticles are successfully modified onto mesoporous graphitic carbon nitride (mg-C3N4) by photo-assisted reduction. Modifying mg-C3N4 with Ag significantly increases the photoelectric conversion performance. The promotion mechanism is studied through electrochemical methods for the first time. Modifying mg-C3N4 with Ag also increases the conductivity and lowers the energy barrier of the interface reactions. A heterojunction electric field, forms on the interface between the modified Ag and mg-C3N4, enhances the separation efficiency of photogenerated electron-hole pairs. The enhanced separation efficiency thus prolongs the lifetime of the photogenerated electrons and significantly improves the photoelectric conversion performance of mg-C3N4. Furthermore, Modifying mg-C3N4 with Ag significantly improves the adsorption capacity and photocatalytic degradation efficiency. Smaller Ag nanoparticles are much more effective than larger ones in improving photoelectric conversion performance. (C) 2013 Elsevier B.V. All rights reserved. |
| 关键词 | Mg-c3n4 Ag Heterojunction Electrochemical Test Methods Visible Light |
| 学科领域 | Chemistry ; Engineering |
| DOI | 10.1016/j.apcatb.2013.07.066 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327686200074 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/23898 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 通讯作者 | Chen, ZY (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,et al. Using electrochemical methods to study the promotion mechanism of the photoelectric conversion performance of Ag-modified mesoporous g-C3N4 heterojunction material[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,144:622-630. |
| APA | Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,&Chen, ZY .(2014).Using electrochemical methods to study the promotion mechanism of the photoelectric conversion performance of Ag-modified mesoporous g-C3N4 heterojunction material.APPLIED CATALYSIS B-ENVIRONMENTAL,144,622-630. |
| MLA | Bu, Yuyu,et al."Using electrochemical methods to study the promotion mechanism of the photoelectric conversion performance of Ag-modified mesoporous g-C3N4 heterojunction material".APPLIED CATALYSIS B-ENVIRONMENTAL 144(2014):622-630. |
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