Fabrication of the SnO2/α-Fe2O3 Hierarchical Heterostructure and Its Enhanced Photocatalytic Property

被引：88

作者：

Kang, Jin ^{[1
]}

Kuang, Qin ^{[1
]}

Xie, Zhao-Xiong ^{[1
]}

Zheng, Lan-Sun ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 16期

基金：

中国国家自然科学基金;

关键词：

NANOCRYSTAL HETEROSTRUCTURES; HYDROTHERMAL SYNTHESIS; NANOWIRE; WATER; TEMPERATURE; NANOSENSORS; GROWTH; ARRAYS; SENSOR; FILMS;

D O I：

10.1021/jp111419w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A necklacelike SnO2/alpha-Fe2O3 hierarchical heterostructure was successfully fabricated by chemical vapor deposition method, using SnO2 nanowires with the preferential growth direction of [001] direction as template. Element mapping and transmission electron microscopy analysis proved that the hierarchical heterostructure was factually an assembly constructed with a SnO2/alpha-Fe2O3 nanocable and a series of pure alpha-Fe2O3 disks, and the interfacial orientation relation ship was (100)(SnO2),//(110)(Fe2O3) and [001] (SnO2)// [001] (FeO3). Such a novel hierarchical heterostructure has been proved to present enhanced photocatalytic ability to degradation of methylene blue under visible light due to improvement of the hole electron separation efficiency.

引用

页码：7874 / 7879

页数：6

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