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Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation
Wang, Shuhao1,2; Lan, Zhipeng1; Huang, Yun1
2016-06-01
发表期刊POWDER TECHNOLOGY
ISSN0032-5910
卷号294期号:JUNE页码:259-265
摘要Tungsten trioxide powders of different morphologies are synthesized through one-step flame aerosol route by adjusting precursor concentration. X-ray diffraction indicates that the powders are gamma-WO3. Scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy are used to characterize the detailed structure and near surface chemical compositions. At very low precursor concentration of 0.25 mol/L, the WO3 particles are sphere, but when that approaches 1.00 mol/L, a large amount of crystalline polyhedron composed of two {001) and eight {111) facets are widely observed. The formation mechanism of gamma-WO3 within the high temperature environment is discussed, along with the impact of precursor concentration on particle morphology. In addition, during the methylene blue degradation, the spherical particles show the best adsorption capability due to its relatively larger specific surface area, while polyhedron particles present better photocatalytic performance relying on its {001} and {111} facets of high activity. (C) 2016 Elsevier B.V. All rights reserved.
关键词Tungsten Trioxide Morphology Control Photodegradation Activity Formation Mechanism Precursor Concentration
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.powtec.2016.02.043
收录类别SCI
语种英语
关键词[WOS]HYDROTHERMAL SYNTHESIS ; WO3 NANOSTRUCTURES ; SENSING PROPERTIES ; SPRAY-PYROLYSIS ; THERMAL PLASMA ; CRYSTAL FACET ; THICK-FILMS ; NANOPARTICLES ; PHOTOCATALYSIS ; PERFORMANCE
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(91434116) ; China 973 research program(2015CB251303) ; Scientific Research Foundation for Returned Scholars, Ministry of Education of China(20131792)
WOS记录号WOS:000377726500027
引用统计
被引频次:4[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/122111/21153
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wang, Shuhao,Lan, Zhipeng,Huang, Yun. Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation[J]. POWDER TECHNOLOGY,2016,294(JUNE):259-265.
APA Wang, Shuhao,Lan, Zhipeng,&Huang, Yun.(2016).Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation.POWDER TECHNOLOGY,294(JUNE),259-265.
MLA Wang, Shuhao,et al."Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation".POWDER TECHNOLOGY 294.JUNE(2016):259-265.
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