Photocatalytic activity and adsorption performance of p-CuBi2O4/n-TiO2 p-n heterojunction composites prepared by in situ sol-gel coating method

被引：23

作者：

Zhang, Yun ^{[1
]}

Xie, Yahong ^{[1
,2
]}

Li, Juan ^{[1
]}

Bai, Te ^{[1
]}

Wang, Jide ^{[1
]}

机构：

[1] Xinjiang Univ, Key Lab Oil & Gas Fine Chem, Minist Educ & Xinjiang Uyghur Autonomous Reg, Urumqi 830046, Peoples R China

[2] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830046, Peoples R China

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2014年 / 71卷 / 01期

关键词：

CuBi2O4; TiO2; p-n heterojunction; Photocatalytic; Adsorption performance; AQUEOUS-SOLUTION; LIGHT; DEGRADATION; OXIDATION;

D O I：

10.1007/s10971-014-3328-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The CuBi2O4/TiO2 p-n heterojunction composites were obtained by in situ sol-gel coating process using prepared CuBi2O4 powders and titania colloid. The obtained CuBi2O4/TiO2 composites were characterized by XRD, SEM, BET and UV-vis diffuse reflectance spectroscopy. Their photocatalytic and adsorption activities were evaluated by degradations and adsorptions of methyl orange and congo red. Results showed that some compositions of prepared p-n heterojunction composites exhibited much higher photocatalytic activity and absorption performance than pure CuBi2O4 or pure TiO2, demonstrating that the formation of p-n heterojunction between the two materials plays an important role in improving photocatalytic activity and adsorption performance.

引用

页码：38 / 42

页数：5

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