Synthesis of Visible Light Responsive N Doped TiO2 Photocatalyst and its Enhanced Photocatalytic Activity

被引：2
作者：
Zhao, Yujie
Li, Huayang
Bala, Hari [1 ,2 ]
Chen, Jingkuo
Zhang, Bowen
Fu, Xinglin
Fu, Wuyou [1 ,2 ]
机构：
[1] Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454000, Peoples R China
[2] Henan Polytech Univ, Cultivating Base Key Lab Environm Friendly Inorga, Jiaozuo 454000, Peoples R China
来源：
CURRENT NANOSCIENCE | 2015年 / 11卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Degradation; N doped; photocatalyst; TiO2; visible light; TITANIUM-DIOXIDE; NANOPARTICLES; FABRICATION; NITROGEN; ANATASE; WATER;
D O I：
10.2174/1573413711666150130194703
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The N doped TiO2 (N-TiO2) photocatalyst was prepared by a sol-gel method using ammonium nitrate (NH4NO3) as solid substrates and doping source. The thermal dissociation of NH4NO3 during heat treatment process of dried gel can introduce N element to TiO2 promoting the crystal transformation and adjusting the band structure. Meanwhile, the N-TiO2 samples have large specific surface area and well mesoporous structure. The doped N element narrow the band gap of TiO2 and its light absorption edge has been broadened to visible region. The photocatalytic degradation measurement exhibit that the N-TiO2 sample show high photocatalytic activities in decolorisation of RhB under visible light irradiation. The kinetic calculations reveal that photocatalytic reaction rate constant for N-TiO2 is approximately 3 times higher than that for pure TiO2.
引用
收藏
页码：447 / 452
页数：6
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