Enhanced photocatalytic performance of CuBi2O4 particles decorated with Ag nanowires

doi:10.1016/j.mssp.2017.09.029

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Enhanced photocatalytic performance of CuBi2O4 particles decorated with Ag nanowires
	Wang, Fei 1,2; Yang, Hua 1,2; Zhang, Yunchuan 2
刊名	MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
	2018-01
卷号	73 页码:58-66
关键词	CuBi2O4 particles Ag nanowires Ag-CuBi2O4 composite Enhanced photocatalytic activity Photocatalytic mechanism
ISSN号	1369-8001
DOI	10.1016/j.mssp.2017.09.029
英文摘要	CuBi2O4 particles (350-700 nm) were decorated with Ag nanowires (30 nm in diameter and 0.8-1.5 ae m in length) by a hydrothermal route. The as-prepared Ag-CuBi2O4 composite was systematically characterized by XRD, TEM, XPS, UV-vis DRS, EIS, PL spectroscopy and photocurrent response. It is revealed that Ag-CuBi2O4 composite displays an enhanced separation efficiency of photogenerated electron-hole pairs, which is due to the migration of electrons from CuBi2O4 particles to Ag nanowires. RhB and phenol were chosen as the target organic pollutant to evaluate their degradation behavior over the samples under simulated-sunlight irradiation. It is observed that Ag-CuBi2O4 composite shows a photocatalytic activity much higher than that of bare CuBi2O4. The enhanced photocatalytic activity of the composite can be explained by the efficient separation of photoinduced charges and the increased availability of the charges for the photocatalytic reactions. The reactive species were determined by investigating the effect of ethanol, BQ and AO on the degradation of RhB and the formation of .OH radicals. It is concluded from the experimental results that .OH is the dominant reactive species causing the dye degradation. The photocatalytic mechanism involved was discussed.
资助项目	National Natural Science Foundation of China[51262018][51662027]
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000415921400009
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32859]
专题	省部共建有色金属先进加工与再利用国家重点实验室理学院设计艺术学院
通讯作者	Yang, Hua
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fei,Yang, Hua,Zhang, Yunchuan. Enhanced photocatalytic performance of CuBi2O4 particles decorated with Ag nanowires[J]. MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING,2018,73:58-66.
APA	Wang, Fei,Yang, Hua,&Zhang, Yunchuan.(2018).Enhanced photocatalytic performance of CuBi2O4 particles decorated with Ag nanowires.MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING,73,58-66.
MLA	Wang, Fei,et al."Enhanced photocatalytic performance of CuBi2O4 particles decorated with Ag nanowires".MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING 73(2018):58-66.