Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation

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	Flame aerosol synthesis of tungsten trioxide powder: Particle morphology control and photodegradation activity under visible light irradiation
	Wang, Shuhao 1,2; Lan, Zhipeng 1; Huang, Yun 1
刊名	POWDER TECHNOLOGY
	2016-06-01
卷号	294 期号:JUNE 页码:259-265
关键词	Tungsten trioxide Morphology control Photodegradation activity Formation mechanism Precursor concentration
ISSN号	0032-5910
英文摘要	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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	HYDROTHERMAL SYNTHESIS ; WO3 NANOSTRUCTURES ; SENSING PROPERTIES ; SPRAY-PYROLYSIS ; THERMAL PLASMA ; CRYSTAL FACET ; THICK-FILMS ; NANOPARTICLES ; PHOTOCATALYSIS ; PERFORMANCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000377726500027
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21153]
专题	过程工程研究所_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
推荐引用方式 GB/T 7714	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.