Facile assembly of TiO2 nanospheres/SnO2 quantum dots composites with excellent photocatalyst activity for the degradation of methyl orange

被引：29

作者：

Du, Feng ^{[1
]}

Zuo, Xueqin ^{[1
]}

Yang, Qun ^{[1
]}

Yang, Bo ^{[1
]}

Li, Guang ^{[1
,2
]}

Ding, Zongling ^{[1
,2
]}

Wu, Mingzai ^{[1
,2
]}

Ma, Yongqing ^{[1
,2
]}

Jin, Shaowei ^{[1
,2
]}

Zhu, Kerong ^{[1
,2
]}

机构：

[1] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China

[2] Anhui Key Lab Informat Mat & Devices, Hefei 230601, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Composites; Photocatalytic; Quantum dots; TiO2/SnO2; HIGH-CAPACITY; NANOSHEETS; NANOCOMPOSITE;

D O I：

10.1016/j.ceramint.2016.05.036

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this report, SnO2 quantum dots anchored on TiO2 nanospheres (TiO2/SnO2 composites) have been synthesized by a simple one-step hydrothermal process, and then employed as photocatalyst in photodegradation system. The microstructure of TiO2/SnO2 composites reveals that the SnO2 quantum dots are dispersed on the surface of TiO2 nanospheres uniformly. The photocatalytic behavior of the as-prepared samples revealed that the composites exhibited highly efficient performance by degrading 100 mL of 10 mg/L methylene orange in 15 min completely under ultraviolet-visible light. Owning to the special structure of the composites, TiO2/SnO2 shows a more UV-vis light absorption than either pure TiO2 nanospheres or pure SnO2 quantum dots. This study offers a facile method to prepare TiO2/SnO2 composites, which will be a choice for greatly extending potential applications in water pollution treatment, degradation of pollutants and other related fields. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：12778 / 12782

页数：5

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