Luminescent and photocatalytic properties of hollow SnO2 nanospheres

被引：15
作者：
Zhu, Yanhua
Wang, Lingling [1 ]
Huang, Guifang
Chai, Yifeng
Zhai, Xiang
Huang, Weiqing
机构：
[1] Hunan Univ, Sch Phys & Microelect, Changsha 410082, Hunan, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2013年 / 178卷 / 10期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
Hollow nano-sphere; Tin oxide; Sacrificing template; Specific surface area; Photoluminescence; Photocatalysis; OPTICAL-PROPERTIES; TIN OXIDE; HYDROTHERMAL SYNTHESIS; LOW-TEMPERATURE; PHOTOLUMINESCENCE; EFFICIENT; FILMS; NANOPARTICLES; MICROSPHERES; DEGRADATION;
D O I：
10.1016/j.mseb.2013.03.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Size tunable solid SnO2 (STO) and hollow SnO2 (HTO) nanospheres were prepared by a sacrificing template method. The peaks around 390 nm were observed in photoluminescence (PL) spectra. Based on the results, the PL intensity exhibits morphology-dependence and size-dependence, and HTO structure displays better optical properties than STO structure. The degradation of Methyl Orange (MO) in aqueous solution is selected as a probe reaction to evaluate the catalytic activity of nano-SnO2. The result shows that HTO structure presents stronger photocatalytic (PC) activity. According to the result of specific surface area testing, the improved PL and PC properties of HTO structure can be mainly explained by the surface effect induced by large specific surface area. This work is meaningful for developing nanomaterials with enhanced optical and photochemical properties. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：725 / 729
页数：5
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