Ag-decorated core-shell Sm2O3@TiO2 nanocomposites with enhanced visible-light photocatalytic performance

doi:10.1016/j.jpcs.2018.07.022

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	Ag-decorated core-shell Sm2O3@TiO2 nanocomposites with enhanced visible-light photocatalytic performance
	Zheng, Xiaogang; Li, Xianfen; Peng, Hao; Wen, Jing
刊名	JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
	2018-12
卷号	123 页码:206-215
ISSN号	0022-3697
DOI	10.1016/j.jpcs.2018.07.022
英文摘要	Ag-decorated core-shell Sm2O3@TiO2 (Ag-Sm@TiO2) nanocomposites were synthesized for the photocatalytic degradation of rhodamine B (RhB) under visible light irradiation. Compared with core-shell Sm2O3@TiO2 nanoparticles, the enhanced photocatalytic activity of Ag-Sm@TiO2 under visible light region was attributed to the surface plasmonic resonance effect of metallic silver and the interface effect between Sm2O3 and TiO2 in Fenton reaction system. The heterojunction consisted metallic Ag-0 nanoparticles, Sm2O3 core, and TiO2 shell was suitable for the separation of photoexcited electron-hole pairs and the suppression of charge carriers recombination. In addition, the center dot OH radical was the key active radicals for the photocatalytic degradation of RhB in visible light region. Removal efficiency of RhB over Ag-Sm@TiO2 increased and then decreased with the increasing Ag amount, of which the 6-Ag-Sm@TiO2 with metallic Ag-0 nanoparticles of 6.0 wt% exhibited the best photo catalytic activity and slightly deactivated after five cycle times.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34499]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Zheng, Xiaogang,Li, Xianfen,Peng, Hao,et al. Ag-decorated core-shell Sm2O3@TiO2 nanocomposites with enhanced visible-light photocatalytic performance[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2018,123:206-215.
APA	Zheng, Xiaogang,Li, Xianfen,Peng, Hao,&Wen, Jing.(2018).Ag-decorated core-shell Sm2O3@TiO2 nanocomposites with enhanced visible-light photocatalytic performance.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,123,206-215.
MLA	Zheng, Xiaogang,et al."Ag-decorated core-shell Sm2O3@TiO2 nanocomposites with enhanced visible-light photocatalytic performance".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 123(2018):206-215.