Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNOx properties

被引：38

作者：

Wei, Yuelin ^{[1
]}

Huang, Yunfang ^{[1
,2
]}

Wu, Jihuai ^{[1
]}

Wang, Min ^{[2
]}

Guo, Chongshen ^{[2
]}

Dong, Qiang ^{[2
]}

Yin, Shu ^{[2
]}

Sato, Tsugio ^{[2
]}

机构：

[1] Huaqiao Univ, Engn Res Ctr Environm Friendly Funct Mat, Minist Educ, Xiamen 361021, Peoples R China

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2013年 / 248卷

关键词：

ZnO; Photocatalytic activity; Hierarchical structure; SENSITIZED SOLAR-CELLS; OXIDE HOLLOW SPHERES; EFFICIENCY; NANOBELTS;

D O I：

10.1016/j.jhazmat.2013.01.012

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents novel and facile methods for the fabrication of a series ZnO spheres by template-free, carbon template and hydrated-salt assisted solvothermal process, respectively. Phase purity and crystalline structure of the products were studied by X-ray diffraction analysis. SEM was employed to investigate the morphology and the fabrication of the monodisperse. BET analysis revealed that the asprepared samples possessed huge specific surface area. UV-vis diffuse reflectance spectroscopy showed that these ZnO hollow spheres have a higher absorption. The as-prepared samples showed excellent photocatalytic activity for the decomposition of NO gas under both visible-light and UV light irradiation (lambda >510,400, 290 nm), being superior to that of commercial TiO2 powders. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：202 / 210

页数：9

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