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Controlled synthesis of thorny anatase TiO2 tubes for construction of Ag-AgBr/TiO2 composites as highly efficient simulated solar-light photocatalyst
Tian, Guohui; Chen, Yajie; Bao, Hong-Liang(鲍洪亮); Meng, Xiangying; Pan, Kai; Zhou, Wei; Tian, Chungui; Wang, Jian-Qiang(王建强); Fu, Honggang
2012
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume22Issue:5Pages:2081
AbstractThis work reports on a two-stage strategy towards the controlled Ag-AgBr deposition onto thorny anatase TiO2 tubes for excellent simulated solar-light photocatalytic activities. First, anatase TiO2 tubes with a thorny porous external surface were prepared using rod-like TiOSO4 center dot 2H(2)O as sacrificial template and a Ti source via a solvothermal process followed by annealing. The formation mechanism of the anatase TiO2 tubular precursor was investigated in detail. Then, the prepared anatase TiO2 tubes were used as a support for loading AgBr nanoparticles using the deposition-precipitation method, and the deposited AgBr was partially reduced to Ag via the calcination process to fabricate the Ag-AgBr/TiO2 tubular composites. X-Ray absorption near edge spectra (XANES), extend X-ray absorption fine structure (EXAFS) spectra and X-ray photoelectron spectroscopy (XPS) analyses indicated that both AgBr and Ag-0 components coexist in the systems. Compared with conventional nanoparticles and nanotubes, there exist abundant microcavities in the roughly parallel nanothorns of the tubes, which can contribute to the stable deposition of the Ag-AgBr nanoparticles and the formation of effective nanojunctions. These composites exhibited superior photocatalytic activity in the degradation of phenol under simulated solar-light irradiation.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000298970700051
Citation statistics
Cited Times:78[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/12892
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Tian, Guohui,Chen, Yajie,Bao, Hong-Liang,et al. Controlled synthesis of thorny anatase TiO2 tubes for construction of Ag-AgBr/TiO2 composites as highly efficient simulated solar-light photocatalyst[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(5):2081.
APA Tian, Guohui.,Chen, Yajie.,Bao, Hong-Liang.,Meng, Xiangying.,Pan, Kai.,...&Fu, Honggang.(2012).Controlled synthesis of thorny anatase TiO2 tubes for construction of Ag-AgBr/TiO2 composites as highly efficient simulated solar-light photocatalyst.JOURNAL OF MATERIALS CHEMISTRY,22(5),2081.
MLA Tian, Guohui,et al."Controlled synthesis of thorny anatase TiO2 tubes for construction of Ag-AgBr/TiO2 composites as highly efficient simulated solar-light photocatalyst".JOURNAL OF MATERIALS CHEMISTRY 22.5(2012):2081.
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