光催化
介孔材料
材料科学
可见光谱
掺杂剂
氧化铌
兴奋剂
催化作用
氧化物
制氢
光化学
铌
化学工程
化学
光电子学
有机化学
工程类
冶金
作者
Hui Huang,Chao Wang,Jie Huang,Xiaomei Wang,Yukou Du,Ping Yang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2014-01-01
卷期号:6 (13): 7274-7280
被引量:60
摘要
Highly ordered N-doped mesoporous niobium oxide (NMNb) was prepared via a facile solid state reaction method using urea as a nitrogen source. The mesoporous structure of niobium oxide (MNb) is beneficial to the N dopant that is effectively incorporated into the lattice of MNb, resulting in a significantly enhanced visible light response. The hydrogen generation efficiency over the optimized N-doped MNb photocatalyst was 14.8 times as high as that from N-P25 under 5 h visible light irradiation. The improved photocatalytic activity of NMNb was mainly due to the fact that the inherited ordered mesostructure of NMNb could offer more active sites for the photocatalytic reaction, as well as accelerate the photogenerated electron-hole pair transfer and separation.
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