V掺杂TiO_2纳米管阵列的制备及光催化研究  

Preparation and photocatalytic properties of V-doped TiO_2 nanotube arrays

作　　者：徐宝龙[1] 张启富[1] 张晓君[1] 孙海燕[2] 都有为[3] 

机构地区：[1]烟台大学光电信息科学与技术学院,功能材料研究中心,山东烟台264005 [2]烟台大学环境与材料工程学院,山东烟台264005 [3]南京大学固体微结构国家重点实验室,江苏南京210093

出　　处：《功能材料》2012年第11期1382-1385,共4页Journal of Functional Materials

基　　金：国家青年科学基金资助项目(11105117);国家自然科学基金资助项目(10704065);烟台大学博士后基金资助项目(WL03B15)

摘　　要：以钒钛合金为原料,应用阳极氧化法制备出高度致密、有序的V掺杂TiO2纳米管阵列。应用扫描电镜(SEM)和粉末X光衍射仪(XRD)表征分析纳米管阵列的形貌和结构,结果表明在浓度不同的HF电解液下制备出径向不同的纳米管阵列,电解液浓度(0.5%～1.5%(质量分数)),管径变化(39.7～72.7nm)。在室温、可见光照射条件下,以10mg/L的亚甲基蓝溶液为模拟污染物进行光催化降解试验,研究了其光催化性能。结果显示V掺杂TiO2纳米管阵列光催化性能优于纯TiO2纳米管,且在HF电解液浓度为1.0%(质量分数)时制备出来的TiO2纳米管光催化降解有机毒物性能最佳。The titanium vanadium alloy as raw material,using anode oxidation method,the highly dense,ordered vanadium doped titania nanotube arrays were fabricated.The nanotube arrays characterization of morphology,composition and structure were determined by scanning electron microscope（SEM）,energy disperse spectroscopy（EDS） and powder X-ray diffraction（XRD）,the results showed that the different weight concentrations of HF electrolyte prepared by radial different nanotube arrays,with the weight concentration of the electrolyte HF changing from（0.5% to 1.5wt%）,the variation of nanotube arrays＇ diameters was from 39.7 to 72.7nm.At room temperature,under visible light irradiation,photocatalytic degradation of 10mg/L methyleneblue solution was carried out to test its photocatalytic properties.The results showed vanadium doped titania nanotube arrays photocatalytic properties of titania nanotube arrays is better than that of pure sample S1,and the samples were fabricated under HF electrolyte weight concentration 1.0wt% have more photocatalytic efficiency than other experimental conditions.The mechanism was briefly discussed.

关 键 词：TIO2纳米管阵列 阳极氧化法 V掺杂 光催化 

分 类 号：TB332[一般工业技术—材料科学与工程] TB321