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Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts
Wang, Jiali1; Yang, Xiaodan1; Zhao, Kun1; Xu, Pengfei1; Zong, Lingbo1; Yu, Ranbo1; Wang, Dan2; Deng, Jinxia1; Chen, Jun1; Xing, Xianran1
2013
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
Volume1Issue:32Pages:9069-9074
AbstractFlower-like beta-Bi2O3 microspheres with high specific surface area and excellent visible-light-driven photocatalytic activity (for degradation of Rhodamine B) were successfully synthesized via a facile hydrothermal process and subsequent calcination. By precisely adjusting the hydrothermal conditions, the composition and morphology of the microspherical precursors could be well controlled, so that upon further optimized calcination of the precursors, the selective formation of the monoclinic alpha-Bi2O3 and tetragonal beta-Bi2O3 with three dimensional (3D) hierarchical architectures could be achieved. These tetragonal beta-Bi2O3 microspheres with an average diameter of 3 mu m were constructed by nanoflakes with an average thickness of 50 nm, which, as far as we know, is the first reported result on the 3D hierarchical architectures of tetragonal beta-Bi2O3. Its flower-like microspherical architecture made the tetragonal beta-Bi2O3 possess not only much improved specific surface area but also a narrower band gap, which significantly enhanced its visible-light-driven photocatalytic activity for the degradation of Rhodamine B (RhB). To further optimize the synthetic conditions and realize the controllable synthesis, the formation mechanism for the morphologies and polymorphs of the Bi2O3 microspheres was discussed in detail.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
Language英语
WOS KeywordBISMUTH OXIDO CLUSTERS ; HIERARCHICAL ARCHITECTURE ; MEDIATED SYNTHESIS ; BI2O3 ; NANOSTRUCTURES ; TRANSFORMATION ; ROUTE ; CONDUCTIVITY
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000322121300010
Citation statistics
Cited Times:72[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13588
Collection研究所(批量导入)
Affiliation1.Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jiali,Yang, Xiaodan,Zhao, Kun,et al. Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(32):9069-9074.
APA Wang, Jiali.,Yang, Xiaodan.,Zhao, Kun.,Xu, Pengfei.,Zong, Lingbo.,...&Xing, Xianran.(2013).Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts.JOURNAL OF MATERIALS CHEMISTRY A,1(32),9069-9074.
MLA Wang, Jiali,et al."Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts".JOURNAL OF MATERIALS CHEMISTRY A 1.32(2013):9069-9074.
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