化工进展2016，Vol.35Issue(12)：3928-3933,6.DOI:10.16085/j.issn.1000-6613.2016.12.028
阵列型TiO2纳米管光催化降解VOCs性能
Tuned TiO2 top-porous/bottom-tubular structure for enhanced VOCs photocatalytic activity
摘要
Abstract
The top-porous/bottom-tubular TiO2 nanotube arrays(TiO2 NTs)were preparedvia a facile two-step anodization method for efficient decomposition of VOCs(volatile organic compounds)in air. The gas phase photocatalytic activity of conventional 1-step TiO2 NTs and top-porous/bottom-tubular TiO2 NTs were estimated by decomposing of methanol vapor. The results show that,a heterojunction structure formed in top-porous/bottom-tubular TiO2 NTs composite plays an important role in the dynamics of photogenerated charges. The top-porous/bottom-tubular TiO2 NTs combined structure significantly enhanced the photocatalytic activity of decomposition of VOCs,which is due to the enhanced electrons transfer and the reduce of the recombination of photogenerated electrons and holes. The mechanism for the enhancement of the photocatalytic activity of top-porous/bottom-tubular TiO2 NTs was discussed according to our experimental results.关键词
TiO2纳米管/纳米结构/催化作用/光化学/VOCs降解Key words
TiO2 nanotube/nanostructure/catalysis/photochemistry/VOCs decomposition分类
化学化工引用本文复制引用
谷笛,朱凌岳,吴红军,王宝辉..阵列型TiO2纳米管光催化降解VOCs性能[J].化工进展,2016,35(12):3928-3933,6.基金项目
国家自然科学基金（21376049，51146008）、黑龙江省自然科学基金（ LC2012C35）及东北石油大学青年基金（NEPUQN2015-1-06）项目。 （）
