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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
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume294Issue:JUNEPages:259-265
AbstractTungsten 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.
KeywordTungsten Trioxide Morphology Control Photodegradation Activity Formation Mechanism Precursor Concentration
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2016.02.043
Indexed BySCI
Language英语
WOS KeywordHYDROTHERMAL SYNTHESIS ; WO3 NANOSTRUCTURES ; SENSING PROPERTIES ; SPRAY-PYROLYSIS ; THERMAL PLASMA ; CRYSTAL FACET ; THICK-FILMS ; NANOPARTICLES ; PHOTOCATALYSIS ; PERFORMANCE
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(91434116) ; China 973 research program(2015CB251303) ; Scientific Research Foundation for Returned Scholars, Ministry of Education of China(20131792)
WOS IDWOS:000377726500027
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21153
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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.
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