化工新型材料

化工新型材料 ›› 2024, Vol. 52 ›› Issue (6) : 122-125. DOI: 10.19817/j.cnki.issn1006-3536.2024.06.035

新材料与新技术

掺氟增强TiO₂光电极可见光响应研究

隋美蓉, 田旭, 高昌盛, 顾琳, 李玉洁, 崔银龙

作者信息 +

Study on visible light response of fluorine-doped TiO₂ photoelectrodes

Sui Meirong, Tian Xu, Gao Changsheng, Gu Lin, Li Yujie, Cui Yinlong

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文章历史 +

Received		Published
2023-03-01		2024-06-20
Issue Date	Revised Date
2024-06-18	2023-03-01

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摘要

采用水热法原位合成出F掺杂TiO₂颗粒材料,进而制备出TiO₂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TiO₂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:TiO₂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TiO₂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。

Abstract

F-doped TiO₂ particles were synthesized in situ by hydrothermal method,and then TiO₂ 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 TiO₂ photoelectrodes,the composition of PEC testing system and the evaluation of PEC properties of the materials.The results showed that the PEC performance of TiO₂ was enhanced significantly after thermal treatment at 400℃,which was mainly due to the broadened visible light absorption range of TiO₂ 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

Key words

photoelectrochemistry / TiO₂ / thermal treatment / visible light response

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掺氟增强TiO₂光电极可见光响应研究[J]. 化工新型材料, 2024, 52(6): 122-125 DOI:10.19817/j.cnki.issn1006-3536.2024.06.035

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