Structure, Dye Degradation Activity and Stability of Oxygen Defective BaFeO3-x

被引：35

作者：

Sun, Mengmeng ^{[1
]}

Jiang, Yinshan ^{[1
]}

Li, Fangfei ^{[1
]}

Xia, Maosheng ^{[1
]}

Xue, Bing ^{[1
]}

Liu, Darui ^{[1
]}

机构：

[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Dept Mat Sci & Engn, Changchun 130026, Peoples R China

来源：

MATERIALS TRANSACTIONS | 2010年 / 51卷 / 11期

基金：

中国国家自然科学基金;

关键词：

defects; oxides; catalytic properties; phase transactions; optical properties; PHOTOCATALYTIC PROPERTIES; COMBUSTION; REDUCTION; SURFACE; FE; DECOMPOSITION; PEROVSKITES; TEMPERATURE; EVOLUTION; OXIDES;

D O I：

10.2320/matertrans.M2010206

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure, dye degradation activity and stability of oxygen defective BaFeO3-x was investigated. The pure perovskite BaFeO3-x was synthesized at 700 degrees C. With further increase in temperature, the oxygen loss occurred, and then the instability of BaFeO3-x was improved due to the change in crystal structure. BaFeO3-x can degrade methyl orange in the dark, and the degradation rate can be improved under visible light due to the optical property of BaFeO3-x. This degradation was caused by the transformation from Fe4+ to Fe3+ to some extent which was related with the structural transition of BaFeO3-x. So the reducibility of BaFeO3-x, functions in dye degradation. The oxygen loss accelerated the structural transition and the photo-assisted degradation activity of BaFeO3-x. The instable Ba2+ also improves the instability of BaFeO3-x. [doi:10.2320/matertrans.M2010206]

引用

页码：1981 / 1989

页数：9

共 50 条

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