富勒醇修饰氮掺杂二氧化钛复合材料及其光催化性能研究

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (8): 2935-2942.

富勒醇修饰氮掺杂二氧化钛复合材料及其光催化性能研究

陈一凡, 唐国钦, 赵春霞, 陈业凯

武汉理工大学材料科学与工程学院,武汉 430070

收稿日期:2022-04-19 修回日期:2022-05-20 出版日期:2022-08-15 发布日期:2022-08-30
通讯作者: 赵春霞,博士,教授。E-mail:zhaochunxia@whut.edu.cn
作者简介:陈一凡(1998—),男。主要从事纳米功能材料的结构与性能研究。E-mail:chenyifan9811@163.com
基金资助:
国家大学生创新创业训练计划(S202110497016)

Synthesis and Photocatalytic Properties of Polyhydroxylated Fullerenes Modified Nitrogen-Doped Titanium Dioxide Composites

CHEN Yifan, TANG Guoqin, ZHAO Chunxia, CHEN Yekai

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Received:2022-04-19 Revised:2022-05-20 Online:2022-08-15 Published:2022-08-30

摘要/Abstract

摘要： 本文采用四丁基氢氧化铵催化碱法制备富勒醇,并以富勒醇为原料,采用溶胶凝胶法制备富勒醇修饰氮掺杂二氧化钛光催化材料,对该复合材料的成分、结构等进行表征与分析,并研究复合材料的光催化还原CO₂的性能。结果表明,复合材料在可见光区的光吸收性能增强,表现出良好的室温可见光催化还原CO₂活性,其中CO平均生成速率达5.560 μmol·g^-1·h^-1,CH₄平均生成速率为0.789 μmol·g^-1·h^-1。分析认为,富勒醇复合与N掺杂有效提高了TiO₂的可见光催化活性。

关键词: 光催化还原CO₂, 富勒醇, 氮掺杂, 二氧化钛, 溶胶凝胶法, 室温, 可见光

Abstract: Polyhydroxylated fullerenes (PHF) were prepared bythe reaction of fullerene with NaOH in the presence oftetrabutylammonium hydroxide (TBAH) catalytic alkali method. PHF modified nitrogen doped titanium dioxide (PHF-N-TiO₂) was synthesized by a sol-gel method using the PHF as-prepared. The morphology and composition of the PHF-N-TiO₂ have been characterized. The photocatalytic performance of the PHF-N-TiO₂ for catalytic reduction of CO₂ was investigated. The results show that the PHF-N-TiO₂ performs enhanced absorption in the visible light region, leading to improved visible photocatalytic activity for the catalytic reduction of CO₂ at room temperature. The average production rate of CO is up to 5.560 μmol·g^-1·h^-1. The average production rate of CH₄ is 0.789 μmol·g^-1·h^-1. It is believed that the combination of PHF modification and nitrogen doping improves the visible photocatalytic activity of TiO₂.

Key words: photocatalytic reduction of CO₂, polyhydroxylated fullerenes, nitrogen doping, titanium dioxide, sol-gel method, room temperature, visible light

中图分类号:

TB332

陈一凡, 唐国钦, 赵春霞, 陈业凯. 富勒醇修饰氮掺杂二氧化钛复合材料及其光催化性能研究[J]. 硅酸盐通报, 2022, 41(8): 2935-2942.

CHEN Yifan, TANG Guoqin, ZHAO Chunxia, CHEN Yekai. Synthesis and Photocatalytic Properties of Polyhydroxylated Fullerenes Modified Nitrogen-Doped Titanium Dioxide Composites[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(8): 2935-2942.

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