Controllable synthesis of alpha-Bi2O3 and gamma-Bi2O3 with high photocatalytic activity by alpha-Bi2O3 ->gamma-Bi2O3 ->alpha-Bi2O3 transformation in a facile precipitation method

doi:10.1016/j.jallcom.2016.08.047

	Controllable synthesis of alpha-Bi2O3 and gamma-Bi2O3 with high photocatalytic activity by alpha-Bi2O3 ->gamma-Bi2O3 ->alpha-Bi2O3 transformation in a facile precipitation method
	Li, Shuai 1; Feng, Zhaochi 2; Zhang, Jing 1; Liu, Guo 1; Li, Can 2; Lu, Yuanyuan 1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2016-12-25
卷号	689 页码:787-799
关键词	Alpha-bi2o3 Gamma-bi2o3 Precipitation Method Photocatalytic Degradation Rhb
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2016.08.047
文献子类	Article
英文摘要	Rod-like alpha-Bi2O3 and tetrahedral gamma-Bi2O3 particles have been controlled fabricated by a facile solution crystallization method, which was performed at a mild reaction condition without any surfactants and/or templates. By combining the results of X-ray powder diffraction, high resolution transmission electron microscope, scanning electron microscopy, Xeray photoelectron spectra, and UV-visible absorption spectra, the morphology and crystalline phase evolution of Bi2O3 was studied versus reaction time and reaction temperature. It is interesting to note that the phenomenon of alpha-Bi2O3/gamma-Bi2O3/alpha-Bi2O3 transformation was found. The nanorod alpha-Bi2O3 phase formed in a short time, while alpha-Bi2O3 could transform to tetrahedral gamma-Bi2O3 crystals upon enough reaction time. However, gamma-Bi2O3 may transform into rod-shape alpha-Bi2O3 with further increasing the reaction time. Moreover, it can be deduced that high reaction temperature promoted the transformation from alpha-Bi2O3 to gamma-Bi2O3, and then from gamma-Bi2O3 to alpha-Bi2O3. The photocatalytic activities of Bi2O3 with different crystalline phases were evaluated by the photocatalytic degradation of rhodamine B as a model pollutant. The g-Bi2O3, which exhibits lower electrons-holes recombination rate than that of alpha-Bi2O3, showed excellent photocatalytic activity as compared with the alpha-Bi2O3. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	VISIBLE-LIGHT PHOTOCATALYST ; BISMUTH OXIDE ; METASTABLE GAMMA-BI2O3 ; SOLID-SOLUTION ; DEGRADATION ; ORANGE ; FILMS ; WATER ; BI2O3 ; MECHANISM
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000384427200102
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169876]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Zhang, Jing
作者单位	1.Liaoning Shihua Univ, Sch Chem & Mat Sci, POB 110, Fushun 113001, Liaoning, Peoples R China 2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuai,Feng, Zhaochi,Zhang, Jing,et al. Controllable synthesis of alpha-Bi2O3 and gamma-Bi2O3 with high photocatalytic activity by alpha-Bi2O3 ->gamma-Bi2O3 ->alpha-Bi2O3 transformation in a facile precipitation method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,689:787-799.
APA	Li, Shuai,Feng, Zhaochi,Zhang, Jing,Liu, Guo,Li, Can,&Lu, Yuanyuan.(2016).Controllable synthesis of alpha-Bi2O3 and gamma-Bi2O3 with high photocatalytic activity by alpha-Bi2O3 ->gamma-Bi2O3 ->alpha-Bi2O3 transformation in a facile precipitation method.JOURNAL OF ALLOYS AND COMPOUNDS,689,787-799.
MLA	Li, Shuai,et al."Controllable synthesis of alpha-Bi2O3 and gamma-Bi2O3 with high photocatalytic activity by alpha-Bi2O3 ->gamma-Bi2O3 ->alpha-Bi2O3 transformation in a facile precipitation method".JOURNAL OF ALLOYS AND COMPOUNDS 689(2016):787-799.