Synthesis of CuO-ZnO nanophotocatalyst for visible light assisted degradation of a textile dye in aqueous solution

被引：255

作者：

Sathishkumar, Panneerselvam ^{[1
]}

Sweena, Ramaswamy ^{[1
]}

Wu, Jerry J. ^{[2
]}

Anandan, Sambandam ^{[1
,2
]}

机构：

[1] Natl Inst Technol, Dept Chem, Nanomat &Solar Energy Convers Lab, Tiruchirappalli 620015, Tamil Nadu, India

[2] Feng Chia Univ, Dept Environm Engn & Sci, Taichung 407, Taiwan

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 171卷 / 01期

关键词：

CuO-ZnO nanophotocatalyst; Acid Red 88; XPS; TOC; RAY PHOTOELECTRON-SPECTROSCOPY; PHOTOCATALYTIC DEGRADATION; HYDROGEN-PRODUCTION; OPTICAL-PROPERTIES; SENSING PROPERTIES; PARTIAL OXIDATION; TIO2; PARTICLES; METHYL-ORANGE; METHANOL; OXIDE;

D O I：

10.1016/j.cej.2011.03.074

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An attempt was made to prepare CuO/ZnO nanophotocatalyst for visible light assisted degradation of a textile dye (Acid Red 88) in aqueous solutions by wet impregnation method. The CuO/ZnO samples annealed at 550 degrees C for 5 h were changed from purple to grey, indicating that CuO clusters on ZnO may not be metallic Cu but it may be CuO-ZnO. Characterization using Transmission Electron Microscopy (TEM), Diffuse Reflectance Spectroscopy (DRS), X-Ray Photo Electron Spectroscopy (XPS) and X-Ray Diffraction (XRD) analysis confirms that only CuO phase is present in the as prepared sample. The prepared CuO-ZnO shows approximately 2 times more photocatalytic activity compared to that of bare ZnO and as well as enhanced photocatalytic activity in the presence of external electron acceptors such as PMS (peroxomonosulphate), PDS (peroxodisulfate), and H2O2 (hydrogen peroxide). Total organic carbon (TOC) experiments also support such enhanced activity. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：136 / 140

页数：5

共 54 条

[1] Synthesis of band-gap-reduced p-type ZnO films by Cu incorporation [J].