Degradation of organics with simultaneous recovery of silver in a simple visible-light responsive dual photoelectrode photocatalytic fuel cell

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Degradation of organics with simultaneous recovery of silver in a simple visible-light responsive dual photoelectrode photocatalytic fuel cell
	Zhao, Xu; Li, Xia; Wang, Yan; Lin, Jia; Liu, Jie; Shao, Huixin
刊名	ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
	2020-07-01
卷号	6 期号:7 页码:1869-1879
ISSN号	2053-1400
英文摘要	An efficient photocatalytic fuel cell (PFC) system driven by visible-light using a BiVO4 photoanode and a Cu2O/CuO photocathode has been designed for phenol degradation with simultaneous silver recovery. Using this system, 86.4% removal of phenol (5 mg L-1) and 100% recovery of Ag (40 mg L-1) were achieved within 4 h, which was more efficient than the individual PFC system without Ag+ ions. High Ag(+)concentration and low initial pH were beneficial for phenol removal. The surface variations of the photoanode and photocathode were characterized by the FE-SEM, XRD and XPS techniques. The Ag species recovered on the photoanode was found to be metallic Ag and Ag2O and the Ag species recovered on the photocathode was determined to be metallic Ag. The Ag2O-BiVO4 heterojunction inhibited the recombination of photo-generated electron-hole pairs. Active radicals including h(+), O-center dot(2)- and (OH)-O-center dot were determined to be responsible for the degradation of organics by quenching experiments and ESR analysis. The proposed system provided an economical and efficient way for the oxidation of organic contaminants and metal ion recovery.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44921]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Zhao, Xu,Li, Xia,Wang, Yan,et al. Degradation of organics with simultaneous recovery of silver in a simple visible-light responsive dual photoelectrode photocatalytic fuel cell[J]. ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,2020,6(7):1869-1879.
APA	Zhao, Xu,Li, Xia,Wang, Yan,Lin, Jia,Liu, Jie,&Shao, Huixin.(2020).Degradation of organics with simultaneous recovery of silver in a simple visible-light responsive dual photoelectrode photocatalytic fuel cell.ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY,6(7),1869-1879.
MLA	Zhao, Xu,et al."Degradation of organics with simultaneous recovery of silver in a simple visible-light responsive dual photoelectrode photocatalytic fuel cell".ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY 6.7(2020):1869-1879.