Photoelectrocatalytic degradation of Ag-cyanide complexes and synchronous recovery of metallic Ag driven by TiO2 nanorods array photoanode combined with titanium cathode
文献类型：期刊论文
| 作者 | Mao, Ran; Di, Song; Wang, Yan; Zhao, Xu |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2020-03 |
| 卷号 | 242页码:1-15 |
| 关键词 | Ag-cyanide complexes Photoelectrocatalytic process Ag2O/TiO2 heterostructure Ag recovery |
| ISSN号 | 0045-6535 |
| 英文摘要 | A photoelectrocatalytic (PEC) system for the decomposition of Ag-cyanide complexes synchronously with Ag recovery was established using the titanium dioxide nanorods (TiO2 NRs) as photoanode and the titanium plate as cathode. The removal efficiency of total cyanide was 76.58%, and the recovery ratio of Ag achieved 84.48% at the applied bias potential of 1.0 V vs SCE in the PEC process. During the reaction, the surface variations and photo-electric properties of TiO2 NRs photoanode or titanium cathode were characterized by SEM-EDS, XPS, and photoelectronic analyses. It was indicated that Ag2O and metallic Ag were deposited onto the TiO2 NRs photoanode and titanium cathode, respectively. Specifically, the in situ generated Ag2O on the TiO2 NRs photoanode facilitated the separation of the photogenerated charge carriers and enhanced the visible-light response, thus improving its PEC catalytic activity toward cyanide destruction. Combined with the results of active species quenching experiments, the mechanism of Ag-cyanide complexes decomposition and metallic Ag recovery by the PEC process was proposed. (C) 2019 Published by Elsevier Ltd. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45342]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Mao, Ran,Di, Song,Wang, Yan,et al. Photoelectrocatalytic degradation of Ag-cyanide complexes and synchronous recovery of metallic Ag driven by TiO2 nanorods array photoanode combined with titanium cathode[J]. CHEMOSPHERE,2020,242:1-15. |
| APA | Mao, Ran,Di, Song,Wang, Yan,&Zhao, Xu.(2020).Photoelectrocatalytic degradation of Ag-cyanide complexes and synchronous recovery of metallic Ag driven by TiO2 nanorods array photoanode combined with titanium cathode.CHEMOSPHERE,242,1-15. |
| MLA | Mao, Ran,et al."Photoelectrocatalytic degradation of Ag-cyanide complexes and synchronous recovery of metallic Ag driven by TiO2 nanorods array photoanode combined with titanium cathode".CHEMOSPHERE 242(2020):1-15. |
入库方式： OAI收割
来源：生态环境研究中心
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