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, Shuai1; Feng, Zhaochi2; Zhang, Jing1; Liu, Guo1; Li, Can2; Lu, Yuanyuan1 | |
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. |
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