无机材料学报2012，Vol.27Issue(11)：1159-1163,5.DOI:10.3724/SP.J.1077.2012.12024
棒状ZnWO4纳米晶的合成及其光催化性能
Fabrication and Photocatalysis of Rod-like ZnWO4 Nanocrystallites
摘要
Abstract
The Wolframite ZnWO4 nanocrystallites were prepared by a facile, template-free microwave hydrothermal method using Na2WO4·2H2O and Zn(COOCH3)2·2H2O as starting materials. The phase, morphology and optical properties of as-prepared samples were characterized by X-ray Diffraction (XRD), Transmission Electron Microscope (TEM), UV-Vis absorption spectra (UV-Vis) and photoluminescence spectroscopy (PL). Results indicate that ZnWO4 nanocrystallites have a preferential orientation growth along the (100) planes, and the morphology of ZnWO4 nanocrystallites change into rodlike structure with the increase of microwave hydrothermal time. An intense blue PL emission with a 460 nm wavelength is observed when the as-prepared ZnWO4 nanocrystallites are excited by a 295 nm wavelength, and they show a strong absorption in the ultraviolet region. The ZnWO4 nanocrystallites whose orientation degree of (100) planes is 0.24 with the particle sizes of 50-60 nm show the best photocatalytic properties.关键词
微波水热法/ZnWO4/形貌/光催化性Key words
microwave hydrothermal method/ ZnWO4/ morphology/ photocatalysis分类
通用工业技术引用本文复制引用
张晓薇,曹丽云,黄剑锋,刘一军,李佳..棒状ZnWO4纳米晶的合成及其光催化性能[J].无机材料学报,2012,27(11):1159-1163,5.基金项目
国家自然科学基金(51072108) （51072108）
陕西省教育厅自然科学专项基金(2010JK444) （2010JK444）
陕西省教育厅自然科学专项基金(11JK0820) （11JK0820）
陕西科技大学研究生创新基金 （）
