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CO_(2)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CO_(2)活性,其中CO平均生成速率达5.560μmol·g^(-1)·h^(-1),CH_(4)平均生成速率为0.789μmol·g^(-1)·h^(-1)。分析认为,富勒醇复合与N掺杂有效提高了TiO_(2)的可见光催化活性。
Polyhydroxylated fullerenes(PHF)were prepared by the reaction of fullerene with NaOH in the presence of tetrabutylammonium hydroxide(TBAH)catalytic alkali method.PHF modified nitrogen doped titanium dioxide(PHF-N-TiO_(2))was synthesized by a sol-gel method using the PHF as-prepared.The morphology and composition of the PHF-N-TiO_(2)have been characterized.The photocatalytic performance of the PHF-N-TiO_(2)for catalytic reduction of CO_(2)was investigated.The results show that the PHF-N-TiO_(2)performs enhanced absorption in the visible light region,leading to improved visible photocatalytic activity for the catalytic reduction of CO_(2)at room temperature.The average production rate of CO is up to 5.560μmol·g^(-1)·h^(-1).The average production rate of CH_(4)is 0.789μmol·g^(-1)·h^(-1).It is believed that the combination of PHF modification and nitrogen doping improves the visible photocatalytic activity of TiO_(2).
作者
陈一凡
唐国钦
赵春霞
陈业凯
CHEN Yifan;TANG Guoqin;ZHAO Chunxia;CHEN Yekai(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《硅酸盐通报》
CAS
北大核心
2022年第8期2935-2942,共8页
Bulletin of the Chinese Ceramic Society
基金
国家大学生创新创业训练计划(S202110497016)。
关键词
光催化还原CO_(2)
富勒醇
氮掺杂
二氧化钛
溶胶凝胶法
室温
可见光
photocatalytic reduction of CO_(2)
polyhydroxylated fullerenes
nitrogen doping
titanium dioxide
sol-gel method
room temperature
visible light
