Enhanced photocatalytic degradation of methyl orange in TiO2(B)@anatase heterostructure nanocomposites prepared by a facile hydrothermal method

被引：16

作者：

Zhang, Yuewei ^{[1
]}

Xu, Jianfeng ^{[1
]}

Feng, Jingyao ^{[2
]}

Yang, Ao ^{[1
]}

Liu, Yi ^{[1
]}

Zhi, Mingjia ^{[1
]}

Hong, Zhanglian ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 112卷

关键词：

Hydrothermal; TiO2(B); Anatase; Photocatalysis; Semiconductors; Nanocomposites; TITANIUM-DIOXIDE NANOMATERIALS; ANATASE NANOPARTICLES; PHASE-TRANSFORMATION; TIO2; NANOBELTS; CORE; COMPOSITES; BROOKITE; WATER;

D O I：

10.1016/j.matlet.2013.09.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, one-dimensional TiO2(B)@anatase heterostructure nanocomposites were synthesized via a facile hydrothermal process in ethanol/water solution with the aid of polyvinylpyrrolidone. TiO2(B) nanobelts were uniformly coated with an anatase nanocrystals shell. The shell thickness can be tuned from 10 nm to 30 nm. The energy bandgap at the heterostructure interface favors the transferring of the photo-induced holes in anatase to TiO2(B) nanobelts, thus the charge recombination can be effectively suppressed. The nanocomposites showed superior photocatalytic degradation of methyl orange due to the enhanced charge separation efficiency. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.

引用

页码：173 / 176

页数：4

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