Simple Fabrication of Anatase-Brookite Mixed-Phase TiO2 Nanoparticles with Visible-Light Responsive Photocatalytic Activity

被引：0
|
作者：
Xue, Bin [1 ]
Sun, Tao [1 ]
Wu, Ji-Kui [1 ]
机构：
[1] Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China
来源：
ASIAN JOURNAL OF CHEMISTRY | 2012年 / 24卷 / 05期
基金：
上海市自然科学基金;
关键词：
Crystal structure; Nanomaterials; Semiconductors; NANOCRYSTALS;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Titanium dioxide (TiO2) nanoparticles with binary mixed-phase were fabricated by a hydrothermal process under broad temperature range (100-180 degrees C). The as-fabricated TiO2 nanoparticles consist of rice-like nanocrystals with anatase-brookite mixed-phase. The ratios of anatase and brookite in the as-fabricated TiO2 nanoparticles are affected by hydrothermal temperature. The absorption bands of the as-fabricated TiO2 nanoparticles are distinctly red-shifted to visible light region. The as-fabricated TiO2 nanoparticles exhibited the superior photocatalytic activity under visible light irradiation. Due to adoption of stable TiCl3 as Ti sources, the fabrication route is simple and thus promotes large-scale production and application of mixed-phase TiO2 nanoparticles for visible light driven photocatalytic process.
引用
收藏
页码：2073 / 2076
页数：4
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