AgBr-wrapped Ag chelated on nitrogen-doped reduced graphene oxide for water purification under visible light
文献类型：期刊论文
| 作者 | Zhang, Lili ; Hu, Chun; Wang, Liang; Shi, Yilun
|
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2018 |
| 卷号 | 220页码:118-125 |
| 关键词 | AgBr@Ag/N-RGO Interfacial contact Visible light Photocatalytic Pollutants degradation |
| ISSN号 | 0926-3373 |
| 文献子类 | Article |
| 英文摘要 | A visible-light-driven photocatalyst AgBr@Ag/nitrogen-doped reduced graphene oxide (AgBr@Ag/N-RGO) was prepared by a hydrothermal-in situ oxidation method, and characterized by scanning and transmission electron microscope, X-ray diffraction, Fourier-transform infrared spectra, Raman and X-ray photoelectron spectroscopy. AgBr@Ag/N-RGO exhibited high photoactivity and photostability to degrade and mineralize various organic pollutants, as demonstrated with 2-chlorophenol, phenol, bisphenol A and diphenhydramine in water under visible light. Its photoactivity was 20, 5.3, and 2.9 times higher than that of Ag/N-RGO, TiO2-xNx and AgBr@Ag, respectively for the photodegradation of 2-chlorophenol. The characterized results verified that Ag nanoparticles (NPs) was first chelated by N-groups of N-RGO and then enwrapped by AgBr by in-situ oxidation, which was contributed to the enhancement of interfacial electron transfer in AgBr@Ag/N-RGO. Furthermore, the two charge transfer processes were elucidated that the plasmon-induced electrons on Ag NPs core transferred to AgBr shell, and could be further transferred away together with the photoexcited electrons on AgBr by N-RGO to interact with O-2 to form O-2 center dot(-), while the electrons of pollutants were accerelated to transfer to the plasmon-induced Ag NPs by the Ag-N complex along the pi-pi graphitic carbon network of N-RGO, which was responsible for the photoactivity and stability of AgBr@Ag/N-RGO. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41316]  |
| 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 | Zhang, Lili,Hu, Chun,Wang, Liang,et al. AgBr-wrapped Ag chelated on nitrogen-doped reduced graphene oxide for water purification under visible light[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,220:118-125. |
| APA | Zhang, Lili,Hu, Chun,Wang, Liang,&Shi, Yilun.(2018).AgBr-wrapped Ag chelated on nitrogen-doped reduced graphene oxide for water purification under visible light.APPLIED CATALYSIS B-ENVIRONMENTAL,220,118-125. |
| MLA | Zhang, Lili,et al."AgBr-wrapped Ag chelated on nitrogen-doped reduced graphene oxide for water purification under visible light".APPLIED CATALYSIS B-ENVIRONMENTAL 220(2018):118-125. |
入库方式： OAI收割
来源：生态环境研究中心
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