掺氟增强TiO_(2)光电极可见光响应研究  

Study on visible light response of fluorine-doped TiO_(2) photoelectrodes

作　　者：隋美蓉 田旭 高昌盛 顾琳 李玉洁 崔银龙 Sui Meirong;Tian Xu;Gao Changsheng;Gu Lin;Li Yujie;Cui Yinlong(School of Medical Imaging,Xuzhou Medical University,Xuzhou 221004)

机构地区：[1]徐州医科大学医学影像学院,徐州221004

出　　处：《化工新型材料》2024年第6期122-125,131,共5页New Chemical Materials

基　　金：江苏省大学生科研训练项目(202110313088Y);徐州医科大学教改课题项目(Xjyfyzx202103)。

摘　　要：采用水热法原位合成出F掺杂TiO_(2)颗粒材料,进而制备出TiO_(2)光电极,研究热处理温度对产物光电化学活性的影响。实验内容包括TiO_(2)光电极的制备,光电化学测试系统的组成以及材料的光电化学性能评价等部分。结果表明:TiO_(2)光电极材料在400℃热处理光电化学性能显著增强,这是因为氟掺杂拓宽了TiO_(2)的可见光吸收范围。此外,线性伏安(LSV)、莫特-肖特基(M-S)特性曲线等也被广泛地用来揭示载流子输运机理。F-doped TiO_(2) particles were synthesized in situ by hydrothermal method,and then TiO_(2) photoelectrodes were prepared.The effect of thermal-treatment temperature on the photoelectrochemical(PEC)activity of the obtained products was investigated.The experiments included the preparation of TiO_(2) photoelectrodes,the composition of PEC testing system and the evaluation of PEC properties of the materials.The results showed that the PEC performance of TiO_(2) was enhanced significantly after thermal treatment at 400℃,which was mainly due to the broadened visible light absorption range of TiO_(2) by doping with fluorine.In addition.The carrier transport mechanism was revealed by the linear voltammetry(LSV)and Mott-Schottky(M-S)characteristic curves,too.

关 键 词：光电化学 二氧化钛 热处理 可见光响应 

分 类 号：TM914.4[电气工程—电力电子与电力传动]