Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO2 Nanobelts

高等学校化学研究 ›› 2012, Vol. 28 ›› Issue (4): 721-726.

Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts

JI Tian-hao, LIU Yang, DONG Li-ya, HAN Peng, SUN Jia-yue

College of Science, Beijing Technology and Business University, Beijing 100048, P. R. China

收稿日期:2011-09-26 修回日期:2011-11-18 出版日期:2012-07-25 发布日期:2012-07-25
通讯作者: JI Tian-hao E-mail:tianji@buaa.edu.cn
基金资助:
Supported by the National Basic Research Program of China(No.2006CB932605), the National Natural Science Foundation of China(No.20876002) and the Fund of Beijing Technology and Business University for the Talent, China.

Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts

JI Tian-hao, LIU Yang, DONG Li-ya, HAN Peng, SUN Jia-yue

College of Science, Beijing Technology and Business University, Beijing 100048, P. R. China

Received:2011-09-26 Revised:2011-11-18 Online:2012-07-25 Published:2012-07-25
Supported by:
Supported by the National Basic Research Program of China(No.2006CB932605), the National Natural Science Foundation of China(No.20876002) and the Fund of Beijing Technology and Business University for the Talent, China.

摘要/Abstract

摘要： A facile preparation of nitrogen-doped β-TiO₂(N-doped β-TiO₂) nanobelts and their visible-light photocatalytic activity were reported. The preparation of N-doped β-TiO₂ nanobelts consisted of cation-exchange between layered sodium titanate nanobelts and NH₄⁺ in aqueous solution at room temperature and subsequent calcination in air. Such a calcination treatment is beneficial to the formation of monoclinic N-doped β-TiO₂ nanobelts. Various measurement results indicate that not only were the nitrogen atoms doped into the lattice of β-TiO₂ nanobelts resulting in a strong visible-light absorption, but also a large number of defects were caused by them in the lattice, increasing the stability of β-TiO₂. The photocatalysis enhancement of N-doped β-TiO₂ nanobelts for the photodegradation of Rhodamine B was demonstrated.

关键词: N-Doping, Titanium dioxide nanobelt, β-Titanium dioxide, Titanium dioxide(B), Photocatalysis

Abstract: A facile preparation of nitrogen-doped β-TiO₂(N-doped β-TiO₂) nanobelts and their visible-light photocatalytic activity were reported. The preparation of N-doped β-TiO₂ nanobelts consisted of cation-exchange between layered sodium titanate nanobelts and NH₄⁺ in aqueous solution at room temperature and subsequent calcination in air. Such a calcination treatment is beneficial to the formation of monoclinic N-doped β-TiO₂ nanobelts. Various measurement results indicate that not only were the nitrogen atoms doped into the lattice of β-TiO₂ nanobelts resulting in a strong visible-light absorption, but also a large number of defects were caused by them in the lattice, increasing the stability of β-TiO₂. The photocatalysis enhancement of N-doped β-TiO₂ nanobelts for the photodegradation of Rhodamine B was demonstrated.

Key words: N-Doping, Titanium dioxide nanobelt, β-Titanium dioxide, Titanium dioxide(B), Photocatalysis

JI Tian-hao, LIU Yang, DONG Li-ya, HAN Peng, SUN Jia-yue . Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts[J]. 高等学校化学研究, 2012, 28(4): 721-726.

JI Tian-hao, LIU Yang, DONG Li-ya, HAN Peng, SUN Jia-yue . Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts[J]. Chemical Research in Chinese Universities, 2012, 28(4): 721-726.

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Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts

Facile Preparation and Visible-light Photocatalysis Enhancement of N-Doped β-TiO₂ Nanobelts

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