Fabrication of nanostructured CuO films by electrodeposition and their photocatalytic properties

被引：167

作者：

Wang, Yongqian ^{[1
]}

Jiang, Tingting ^{[1
]}

Meng, Dawei ^{[1
]}

Yang, Jun ^{[1
]}

Li, Yinchang ^{[1
]}

Ma, Qun ^{[1
]}

Han, Jun ^{[1
]}

机构：

[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2014年 / 317卷

关键词：

CuO film; Electrodeposition; Photocatalytic activity; Growth mechanism; THIN-FILMS; GROWTH;

D O I：

10.1016/j.apsusc.2014.08.144

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：

Monoclinic nanostructured CuO films with star-like morphology on indium tin oxide (ITO)-coated glass substrates were successfully synthesized by electrodeposition method in acidic solution with the pH of 5.7. The as-synthesized films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis. The influence of different electrodeposition parameters and annealing temperature on the growth of CuO films were investigated. The results showed that the nanostructured CuO film was well-crystallized and electrodeposition voltage is the main factor to control its morphology. Moreover, good photocatalytic activity was exhibited and photo-degradation rate to methylene blue can reach 95%. Its optical energy band gap is 3.3 eV. The plausible growth mechanism for the formation of CuO film with star-like structure is also proposed for the first time. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：414 / 421

页数：8

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