Chemical-bond conjugated BiO(OH)(x)I1-x-AgI heterojunction with high visible light activity and stability in degradation of pollutants
文献类型：期刊论文
| 作者 | Ji, Huanhuan; Hu, Chun; Zhang, Lili |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2017-12-05 |
| 卷号 | 218期号:0页码:443-451 |
| 关键词 | Silver Halide [Bi2o2](2+) Chemical-bond Junction Visible-light Photocatalysis Photostability |
| 英文摘要 | A layered BiO(OH)(x)I1-x, solid solution was grown in situ on the surface of AgI particles by a one-pot co-crystallization method. Based on the results of XPS, EPR, XRD and other techniques, it was verified that a p-n heterojunction was formed through Ag-I-Bi cross-linking bonds in the interface of BiO(OH)(x)I1-x and AgI due to the common species of I- ions. The resulting BiO(OH)(x)I1-xAgI exhibited high efficiency and stability for photodegradation of phenolic compounds with visible light irradiation. No significant AgI decomposition or release of Ag+ or Bi3+ was observed in the photoreaction, and the photoactivity of AgI was enhanced almost 9-fold. These enhanced photocatalytic properties were attributed to the strong interfacial interaction between BiO(OH)(x)I1-x and AgI by the Ag-I-Bi bond junction. Due to the chemical bond junction, the photogenerated electrons in the CB of AgI quickly transferred to the CB of BiO(OH)(x)I1-x to produce O-2(center dot-), while the holes in the VB of BiO(OH)(x)I1-x migrated to the VB of AgI to oxidize pollutants in water. The accelerated interfacial charge transfers were responsible for the high photostability and photoactivity of BiO(OH)(x)I1-xAgI. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39675]  |
| 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 | Ji, Huanhuan,Hu, Chun,Zhang, Lili. Chemical-bond conjugated BiO(OH)(x)I1-x-AgI heterojunction with high visible light activity and stability in degradation of pollutants[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,218(0):443-451. |
| APA | Ji, Huanhuan,Hu, Chun,&Zhang, Lili.(2017).Chemical-bond conjugated BiO(OH)(x)I1-x-AgI heterojunction with high visible light activity and stability in degradation of pollutants.APPLIED CATALYSIS B-ENVIRONMENTAL,218(0),443-451. |
| MLA | Ji, Huanhuan,et al."Chemical-bond conjugated BiO(OH)(x)I1-x-AgI heterojunction with high visible light activity and stability in degradation of pollutants".APPLIED CATALYSIS B-ENVIRONMENTAL 218.0(2017):443-451. |
入库方式： OAI收割
来源：生态环境研究中心
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