Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts

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	Precursor-induced fabrication of beta-Bi2O3 microspheres and their performance as visible-light-driven photocatalysts
	Wang, Jiali 1; Yang, Xiaodan 1; Zhao, Kun 1; Xu, Pengfei 1; Zong, Lingbo 1; Yu, Ranbo 1; Wang, Dan 2; Deng, Jinxia 1; Chen, Jun 1; Xing, Xianran 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2013
卷号	1 期号:32 页码:9069-9074
英文摘要	Flower-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.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	BISMUTH OXIDO CLUSTERS ; HIERARCHICAL ARCHITECTURE ; MEDIATED SYNTHESIS ; BI2O3 ; NANOSTRUCTURES ; TRANSFORMATION ; ROUTE ; CONDUCTIVITY
收录类别	SCI
语种	英语
WOS记录号	WOS:000322121300010
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13588]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 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.