硅酸盐学报Issue(10)：1366-1374,9.DOI:10.7521/j.issn.0454-5648.2013.10.08
TiO 2纳米管阵列电极制备与光催化制氢性能的关系
Effect of Preparation Condition on Photocatalytic Hydrogen Evolution Properties of TiO2 Nanotube Array Electrodes
摘要
Abstract
The relationship between the preparation conditions and photocatalytic hydrogen evolution properties on TiO2 nanotube array electrodes was discussed. The influences of anodization potentials, durations, counts and thermal treatment temperature on the electrode performance were investigated via an orthogonal test. The electrodes were characterized by scanning electron microscopy, X-ray diffraction and UV-Vis diffuse reflectance spectroscopy, respectively. The photoelectrochemical properties of electrodes were also examined by an electrochemical work station. The underlying mechanism was analyzed. The results show that TiO2 nano-tube-array electrodes prepared at different parameters of anodic oxidation and thermal treatment lead to different microstructures and crystalline phase compositions, and consequently affect the photocatalytic performances. The highly-ordered TiO2 nanotube arrays are achieved after first-step anodization at 60 V for 1 h. The layered mixed crystal is obtained by heat treatment at 500℃. Furthermore, the multiple photocatalytic experiments were conducted using one electrode in 0.5 mol/L Na2SO4+0.5 mol/L ethylene glycol water solutions under UV light. The H2 evolution rate is 5.3 mL/(h·cm2) at a bias voltage of 0.5 V. The electrode exhibits superior photo-catalytic stability.关键词
二氧化钛纳米管阵列/光催化制氢/阳极氧化/正交试验/分层混晶结构Key words
titanium dioxide nanotube arrays/photocatalytic hydrogen evolution/anodic oxidation/orthogonal test/layered mixed crystal分类
化学化工引用本文复制引用
潘能乾,廖建军,李丹红,王桂振,李建保,林仕伟..TiO 2纳米管阵列电极制备与光催化制氢性能的关系[J].硅酸盐学报,2013,(10):1366-1374,9.基金项目
国家自然科学基金(51202050，51162007)；教育部“新世纪优秀人才支持计划”(NCET-09-0110)。 （51202050，51162007）
