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Designing of a spatially separated hetero-junction pseudobrookite (Fe2TiO5-TiO2) yolk-shell hollow spheres as efficient photocatalyst for water oxidation reaction
Waqas, Muhammad1,2; Iqbal, Shahid3; Bahadur, Ali4; Saeed, Aamer4; Raheel, Muhammad5; Javed, Mohsin6
2017-12-15
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
卷号219期号:DEC页码:30-35
摘要

For the first time, controlled pseudobrookite phase as the yolk and titanium oxide as the shell of hollow spheres were synthesized for the photocatalytic water oxidation. Simple and facile sacrificial hard template strategy was utilized. Firstly, the distribution of TiO2 in the hollow spheres was controlled by loading aqueous solution of 2,3, and 5 mol/LTiCl4 precursor respectively onto carbonaceous template followed by annealing. To prove the Fe3+ ions radial penetration into the hydrophobic core of carbonaceous template, we optimized the ethanol to water ratio. The Fe2TiO5-TiO2 yolk-shell hollow spheres exhibited high oxygen evolution reaction (OER) rate up to 148 mu mol g(-1) h(-1) under UV-vis light. This was attributed to the better light harvesting due to the geometry of hollow sphere; charge separation by a thin shell yolk hetero-junction, a void cavity to access reaction solvent to reactive sites and the hetero-junction of Fe-O-Ti in the hollow structure. These findings suggest that our designed Fe2TiO5-TiO2 yolk-shell hollow spheres are beneficial for the photocatalytic water oxidation. (C) 2017 Elsevier B.V. All rights reserved.

关键词Yolk-shell Hollow Spheres Titanium Oxide Pseudobrookite Hetero-junction Photocatalytic Water Oxidation
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.apcatb.2017.07.049
收录类别SCI
语种英语
关键词[WOS]MICROSPHERES ; HEMATITE ; TIO2 ; IRON ; PHOTOELECTRODES ; MECHANISM ; DIFFUSION ; CAPACITY ; TITANATE ; SURFACE
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
项目资助者Chinese Academy of Sciences (CAS) ; Academy of Sciences for the Developing World (TWAS) President's Fellowship Programme, CAS-TWAS Postgraduate Fellowship
WOS记录号WOS:000412957100004
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23285
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Biochem Engn, CAS Ctr Excellence Nanosci, Inst Proc Engn, 1 North 2nd St, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
4.Quaid I Azam Univ, Dept Chem, Islamabad 45320, Pakistan
5.Balochistan Univ Informat Technol Engn & Manageme, Dept Chem, Quetta, Pakistan
6.Univ Management & Technol, Sch Sci, Dept Chem, C-2, Lahore, Pakistan
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Waqas, Muhammad,Iqbal, Shahid,Bahadur, Ali,et al. Designing of a spatially separated hetero-junction pseudobrookite (Fe2TiO5-TiO2) yolk-shell hollow spheres as efficient photocatalyst for water oxidation reaction[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,219(DEC):30-35.
APA Waqas, Muhammad,Iqbal, Shahid,Bahadur, Ali,Saeed, Aamer,Raheel, Muhammad,&Javed, Mohsin.(2017).Designing of a spatially separated hetero-junction pseudobrookite (Fe2TiO5-TiO2) yolk-shell hollow spheres as efficient photocatalyst for water oxidation reaction.APPLIED CATALYSIS B-ENVIRONMENTAL,219(DEC),30-35.
MLA Waqas, Muhammad,et al."Designing of a spatially separated hetero-junction pseudobrookite (Fe2TiO5-TiO2) yolk-shell hollow spheres as efficient photocatalyst for water oxidation reaction".APPLIED CATALYSIS B-ENVIRONMENTAL 219.DEC(2017):30-35.
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