Preparation, characterization and photocatalytic activity of CuBi2O4/NaTaO3 coupled photocatalysts

被引：75

作者：

Deng, Yongyong ^{[1
]}

Chen, Youjian ^{[1
]}

Chen, Bingang ^{[1
]}

Ma, Jianhua ^{[1
]}

机构：

[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 559卷

关键词：

Heterojunction composites; Photocatalytic; p-CuBi2O4/n-NaTaO3; Visible light; Electron-hole separation; UV-LIGHT IRRADIATION; METHYLENE-BLUE; DEGRADATION; PROPERTY; MINERALIZATION; NANOPARTICLES; DYE;

D O I：

10.1016/j.jallcom.2013.01.069

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, a series of p-CuBi2O4/n-NaTaO3 heteronanostructures were synthesized with the grinding-annealing method. The photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalysts exhibit enhanced photocatalytic activity for methyl blue dye degradation under visible-light irradiation. The highest photocatalytic degradation efficiency was observed when the sample calcined at 500 degrees C with 50 wt.% CuBi2O4 content. On the basis of the calculated energy band positions, the mechanism of enhanced photocatalytic activity was discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：116 / 122

页数：7

共 43 条

[1] CuBi2O4 single crystal nanorods prepared by hydrothermal method: Growth mechanism and optical properties [J].

Abdulkarem, A. M. ;

Li, Jialin ;

Aref, A. A. ;

Ren, Lu ;

Elssfah, E. M. ;

Wang, Hui ;

Ge, Yunke ;

Yu, Ying .

MATERIALS RESEARCH BULLETIN, 2011, 46 (09) :1443-1450

[2] Photocatalytic degradation of methylene blue dye using Fe2O3/TiO2 nanoparticles prepared by sol-gel method [J].

Ahmed, M. A. ;

El-Katori, Emad E. ;

Gharni, Zarha H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 553 :19-29

[3] High-throughput screening using porous photoelectrode for the development of visible-light-responsive semiconductors [J].

Arai, Takeo ;

Konishi, Yoshinari ;

Iwasaki, Yasukazu ;

Sugihara, Hideki ;

Sayama, Kazuhiro .

JOURNAL OF COMBINATORIAL CHEMISTRY, 2007, 9 (04) :574-581

[4] Fabrication of a novel heterostructure of Co3O4-modified TiO2 nanorod arrays and its enhanced photoelectrochemical property [J].

Cao, Chunlan ;

Hu, Chenguo ;

Shen, Weidong ;

Wang, Shuxia ;

Wang, Jianli ;

Tian, Yongshu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 550 :137-143

[5] In situ preparation of novel p-n junction photocatalyst BiOI/(BiO)2CO3 with enhanced visible light photocatalytic activity [J].

Cao, Jing ;

Li, Xin ;

Lin, Haili ;

Chen, Shifu ;

Fu, Xianliang .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 239 :316-324

[6] The preparation of nitrogen-doped photocatalyst TiO2-xNx by ball milling [J].

Chen, SF ;

Chen, L ;

Gao, S ;

Cao, GY .

CHEMICAL PHYSICS LETTERS, 2005, 413 (4-6) :404-409

[7] TiO2- and BaTiO3-Assisted Photocatalytic Degradation of Selected Chloroorganic Compounds in Aqueous Medium: Correlation of Reactivity/Orientation Effects of Substituent Groups of the Pollutant Molecule on the Degradation Rate [J].

Devi, L. Gomathi ;

Krishnamurthy, G. .

JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 115 (04) :460-469

[8] TiO2/BaTiO3-assisted photocatalytic mineralization of diclofop-methyl on UV-light irradiation in the presence of oxidizing agents [J].

Devi, L. Gomathi ;

Krishnamurthy, G. .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (2-3) :899-905

[9] Investigations of metal-doped titanium dioxide photocatalysts [J].

Dvoranová, D ;

Brezová, V ;

Mazúr, M ;

Malati, MA .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 37 (02) :91-105

[10]

Fujishima A., 1972, Nature, V37, P238

← 1 2 3 4 5 →