Facile fabrication of mesoporous Fe-Ti-SBA15 silica with enhanced visible-light-driven simultaneous photocatalytic degradation and reduction reactions
Chang, Fei1; Jiao, Mingzhi1; Xu, Quan1; Deng, Baoqing1; Hu, Xuefeng2; Chang, Fei(Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China); Hu, Xuefeng(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China)
2018-03-30
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号435页码:708-717
产权排序第2完成单位
摘要A series of mesoporous iron-titanium-containing silica Fe-TiO2-SBA15 (FTS) were constructed via a facile one-pot hydrothermal route and subsequently characterized by X-ray diffraction patterns, UV-vis diffuse reflection spectroscopy, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption-desorption, X-ray photoelectron spectroscopy, and X-ray energy dispersion spectroscopy. By analyses, these samples possessed ordered two-dimensional hexagonal mesoporous structures, mainly involving mixed dual-phases of anatase and rutile TiO2, like commercial titania P25. The UV-vis diffuse reflection spectra demonstrated the presence of Fe species that was further confirmed by the X-ray photoelectron spectra and X-ray energy dispersion spectrum. The existence of Fe species in form of Fe3+ cations played an important role on the phase composition and electronic structure of these samples. With structural and morphological merits, these samples exhibited relatively high photocatalytic efficiency toward the degradation of dye methylene blue (MB) and reduction of Cr(VI) under visible-light irradiation, comparing with P25. In addition, among all candidates, the sample with a Fe/Si molar ratio of 0.03 showed the highest catalytic performance under optimal conditions, especially in the coexistence of both MB and Cr(VI), revealing an obviously synergistic effect when the consumption of both contaminants occurred. Finally, a primary catalytic mechanism was speculated on basis of active species capture experiments. (C) 2017 Elsevier B.V. All rights reserved.
关键词Fe-tio2-sba-15 Photocatalysis Simultaneous Degradation Reduction
DOI10.1016/j.apsusc.2017.11.168
项目资助者National Natural Science Foundation of China(21207089) ; Natural Science Foundation of Shanghai(17ZR1419200) ; science and technology development project of University of Shanghai for Science and Technology(2017KJFZ073) ; SRF for ROCS, SEM.
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收录类别SCI
关键词[WOS]DOPED TITANIA SEMICONDUCTORS ; SOL-GEL METHOD ; TIO2 NANOPARTICLES ; CR(VI) REDUCTION ; SBA-15 ; FE ; PERFORMANCE ; IRRADIATION ; CATALYSTS ; OXIDATION
文章类型Article
语种英语
WOS研究方向Chemistry ; Materials Science ; Physics
WOS记录号WOS:000424247500088
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23575
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Chang, Fei; Hu, Xuefeng; Chang, Fei(Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China); Hu, Xuefeng(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China)
作者单位1.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China
通讯作者单位中国科学院烟台海岸带研究所
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GB/T 7714
Chang, Fei,Jiao, Mingzhi,Xu, Quan,et al. Facile fabrication of mesoporous Fe-Ti-SBA15 silica with enhanced visible-light-driven simultaneous photocatalytic degradation and reduction reactions[J]. APPLIED SURFACE SCIENCE,2018,435:708-717.
APA Chang, Fei.,Jiao, Mingzhi.,Xu, Quan.,Deng, Baoqing.,Hu, Xuefeng.,...&Hu, Xuefeng.(2018).Facile fabrication of mesoporous Fe-Ti-SBA15 silica with enhanced visible-light-driven simultaneous photocatalytic degradation and reduction reactions.APPLIED SURFACE SCIENCE,435,708-717.
MLA Chang, Fei,et al."Facile fabrication of mesoporous Fe-Ti-SBA15 silica with enhanced visible-light-driven simultaneous photocatalytic degradation and reduction reactions".APPLIED SURFACE SCIENCE 435(2018):708-717.
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