第 52 卷第 3 期 Vol. 52 No. 3 2022 年 6 月 Jun 2022

所属栏目：安全与环保 TiO2/GO复合材料对氨气和硫化氢的光催化降解

朱桂华1，邹 黔1，翟笑含1，王缤彬1，王子豪1，曹雅诗1，向 往1，黄沁子1，杨 波2，张 玲1，李 君1* （1. 长沙理工大学 化学化工学院，电力与交通材料保护湖南省重点实验室，湖南省细胞化学重点实验室，湖南 长沙 410114；2. 广州特种承压设备检测研究院，广东 广州 510663）

摘　要：采用“静电结合与水热法”制备了二氧化钛/氧化石墨烯（TiO2/GO）复合材料，并对该材料的光催化性能进行了研究。以恶臭气体中氨气、硫化氢为代表性气体，通过自制的反应装置，研究了复合材料对它们的光催化性能，探究了GO掺杂比例、反应时间、紫外灯波长等因素对光催化降解的影响。结果表明：在365 nm紫外灯照射下，GO掺杂量4%的TiO2/GO复合材料去除氨气和硫化氢的效果最佳，去除率分别达96.01%和93.45%。

关键词：二氧化钛；氧化石墨烯；光催化降解；氨气；硫化氢

中图分类号：X701　　文献标识码：A　　文章编号：1009-9212（2022）03-0046-07

Photocatalytic Degradation of Ammonia and Hydrogen Sulfide by TiO2/GO Composite

ZHU Gui-hua1, ZOU Qian1, ZHAI Xiao-han1, WANG Bin-bin1, WANG Zi-hao1, CAO Ya-shi1, XIANG Wang1, HUANG Qin-zi1, YANG Bo2, ZHANG Ling1, LI Jun1* (1.Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Changsha 410114, China; 2. Guangzhou Special Pressure Equipment Inspection and Research Institute, Guangzhou 510663, China)

Abstract：Titanium dioxide/graphene oxide (TiO2/GO) composites were prepared by “electrostatic bonding and hydrothermal method”, and their photocatalytic properties were studied. Taking ammonia (NH3) and hydrogen sulfide (H2S) in malodorous gas as the representative gases, the photocatalytic performance of the composites on them was studied through a self-made reaction device, and the effects of GO doping ratio, reaction time and wavelength of UV lamp on photocatalytic degradation were explored. The results showed that under the irradiation of 365 nm of UV lamp, the TiO2/GO composite with 4% GO doping had the best effect on the removal of NH3 and H2S, and the removal rate were 96.01% and 93.45%, respectively.

Key words：titanium dioxide; graphene oxide; photocatalytic degradation; ammonia; hydrogen sulfide

基金项目：2020年度国家大学生创新创业训练计划立项项目（202010536018），湖南省教育厅优秀青年项目（21B0302），广州市市场监督管理局科技项目（2020KJ13）。

作者简介：朱桂华（1999—），女，广西桂林人，研究方向：环境工程。

联 系 人：李 君，讲师，研究方向：纳米催化材料（E-mail：muzi.yikou@163.com）。

收稿日期：2022-05-06