期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 509, 期 37, 页码 9255-9263出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2011.07.017
关键词
Oxide materials; Thin films; Crystal growth; Crystal structure; Optical spectroscopy
资金
- Natural Science Foundation of China [50772048]
- Natural Science Foundation of China and China Engineering Physics [10776014]
ZnO films with three different microstructures including hexagonal prisms, plates and rose-like twinned crystals were fabricated using chemical bath deposition with different concentration of gelatin. The growth mechanisms of ZnO films were discussed, and the gelatin played a vital role as a polyelectrolyte capping the formation of microstructures. The photoluminescence and Raman properties were found sensitive to the crystal morphologies of ZnO films. Significantly, the photodegradation efficiencies of methylene blue under UV light irradiation in the presence of ZnO films consisted of hexagonal prisms and rose-like twinned crystals were 95% and 96%, respectively. The excellent photocatalytic activities can be ascribed to the high oxygen vacancies concentration and high percentage of polar planes, and this result was important in addressing the origin of high photocatalytic activity. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据