改性TiO_(2)纳米管阵列电极的光电化学性能研究  

Study on Photoelectrochemical Performance of Modified TiO_(2) Nanotube Array Electrode

作　　者：靳雨馨 石颖哲 王璇 Jin Yuxin;Shi Yingzhe;Wang Xuan(School of Ecology and Environment,Inner Mongolia University,Hohhot 010021,China;Key Laboratory of Environmental Pollution Control and Waste Recycling,Inner Mongolia Autonomous Region,Hohhot 010021,China)

机构地区：[1]内蒙古大学生态与环境学院,内蒙古呼和浩特010021 [2]内蒙古自治区环境污染控制与废物资源化重点实验室,内蒙古呼和浩特010021

出　　处：《稀有金属材料与工程》2021年第2期614-620,共7页Rare Metal Materials and Engineering

基　　金：内蒙古自治区自然科学基金(2019BS02013);内蒙古自治区高等学校科研项目(NJZY18011)。

摘　　要：近年来,掺杂改性的TiO_(2)纳米管作为光催化材料的研究受到广泛关注。本实验采用阳极氧化法在Ti板表面制备规则有序的TiO_(2)纳米管,通过在电解液中直接添加含Fe、N元素的化学试剂对其进行掺杂改性。利用扫描电子显微镜、X射线衍射仪和X射线光电子能谱对TiO2纳米管进行表征,确定TiO_(2)纳米管的最佳制备条件。最后利用瞬态光电流曲线、开路电位曲线、线性伏安扫描曲线对其光电化学性能进行比较。研究发现,1%的Fe元素掺杂材料具有更好的光电响应,光照时开路电位可达0.345 V;9%的N元素掺杂材料具有最好的光电活性,光照时开路电位可达0.3 V。In recent years, the research of doped modified TiO_(2) nanotubes as photocatalytic materials has received widespread attention. In this research, anodic oxidation method was used to prepare regular and ordered TiO2 nanotubes on the surface of Ti plate, and the chemical reagents containing Fe and N elements were directly added to the electrolyte to modify TiO_(2) nanotubes. SEM, X-ray diffractometer and X-ray photoelectron spectroscopy were used to characterize TiO_(2) nanotubes, and the optimal preparation conditions of TiO_(2) nanotubes were determined. Finally, the transient photocurrent curve, open-circuit potential curve, and linear voltammetric scanning curve were used to compare their photoelectrochemical performance. The results show that 1% Fe element doped material has better photoelectric response, and the open circuit potential can reach 0.345 V under light;9% N element doped material has the best photoelectric activity, and open circuit potential can reach 0.3 V.

关 键 词：阳极氧化法 TIO2纳米管 改性 光电化学性能 

分 类 号：O643.36[理学—物理化学]