Preparation and photocatalytic activity of bicrystal phase TiO2 nanotubes containing TiO2-B and anatase

被引：29

作者：

Huang, Chuanxi ^{[2
]}

Zhu, Kerong ^{[1
,2
]}

Qi, Mengyao ^{[2
]}

Zhuang, Yonglong ^{[1
]}

Cheng, Chao ^{[1
]}

机构：

[1] Anhui Univ, Modern Expt Tech Ctr, Hefei 230039, Peoples R China

[2] Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2012年 / 73卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; SIMULATION; NANOSHEETS; PARTICLE; SURFACE; ORIGIN; FILMS; GAS;

D O I：

10.1016/j.jpcs.2012.01.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bicrystal phase TiO2 nanotubes (NTS) containing monoclinic TiO2-B and anatase were prepared by the hydrothermal reaction of anatase nanoparticles with NaOH aqueous solution and a heat treatment. Their structure was characterized by XRD, TEM and Raman spectra. The results showed that the bicrystal phase TiO2 NTS were formed after calcining H2Ti4O9 center dot H2O NTS at 573 K. The bicrystal phase TiO2 NTS exhibit significantly higher photocatalytic activity than the single phase anatase NTS and Dessuga P-25 nanoparticles in the degradation of Methyl Orange aqueous solution under ultraviolet light irradiation, which is attributed to the large surface and interface areas of the bicrystal phase TiO2 NTS. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：757 / 761

页数：5

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