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Salt-assisted Synthesis of Hollow Bi2WO6 Microspheres with Superior Photocatalytic Activity for NO Removal
Chen, Meijuan1; Huang, Yu2,3; Lee, Shun Cheng4
2017-02-01
发表期刊CHINESE JOURNAL OF CATALYSIS
卷号38期号:2页码:348-356
文章类型Article
摘要Hollow Bi(2)W0(6) microspheres are successfully synthesized by a facile ultrasonic spray pyrolysis (USP) method using NaCl as a salt template. The as-prepared hollow microspheres assembled as nanoplates with dimensions of approximately 41-148 nm and are dispersed with non-uniform pores on the template surface. By swapping the salt template with KC1 or Na2SO4, different morphologies of Bi(2)W0(6) are obtained. The experimental results demonstrate that NaCI plays a key role on the formation of Bi(2)W0(6) with hollow structures. The specific growth mechanism of hollow microspheres was studied in detail. The Bi(2)W0(6) hollow microspheres exhibit an excellent photocatalytic efficiency for NO removal under solar light irradiation, which is 1.73 times higher than for the Bi(2)W0(6) obtained in the absence of any salt template. This enhancement can be ascribed to the simultaneous improvement on the surface area and visible light -harvesting ability from the hollow structures. Electron spin resonance (ESR) results suggest that both radicals of "OH and O-2-are involved in the photocatalytic process over the BWO-NaC1 sample. The production of O-2 radicals offers better durability for NO removal. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词Ultrasonic Spray Pyrolysis Salt Template Bi2wo6 Hollow Microsphere No Removal
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(16)62584-6
关键词[WOS]ULTRASONIC SPRAY-PYROLYSIS ; SOLID-SOLUTION PHOTOCATALYSTS ; VISIBLE-LIGHT ; DIFFERENT MORPHOLOGIES ; THIN-FILMS ; INDOOR AIR ; PHOTODEGRADATION ; NANOSTRUCTURES ; NANOCRYSTALS ; FABRICATION
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000396384300019
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5514
专题粉尘与环境研究室
作者单位1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Shaanxi, Peoples R China
4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
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Chen, Meijuan,Huang, Yu,Lee, Shun Cheng. Salt-assisted Synthesis of Hollow Bi2WO6 Microspheres with Superior Photocatalytic Activity for NO Removal[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(2):348-356.
APA Chen, Meijuan,Huang, Yu,&Lee, Shun Cheng.(2017).Salt-assisted Synthesis of Hollow Bi2WO6 Microspheres with Superior Photocatalytic Activity for NO Removal.CHINESE JOURNAL OF CATALYSIS,38(2),348-356.
MLA Chen, Meijuan,et al."Salt-assisted Synthesis of Hollow Bi2WO6 Microspheres with Superior Photocatalytic Activity for NO Removal".CHINESE JOURNAL OF CATALYSIS 38.2(2017):348-356.
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