文献类型：期刊文献

英文题名：Preparation of metal and F-Si co-doped TiO2 aerogel catalyst by sol-gel method and its photocatalytic degradation performance

作者：Tang, Shiyun Song, Guoqiang Zhang, Guifei Li, Claudia Sunarso, Jaka Kawi, Sibudjing

第一作者：唐石云

通信作者：Song, GQ[1]

机构：[1]Guizhou Inst Technol, Guiyang 550003, Guizhou, Peoples R China;[2]Yuzhang Normal Univ, Inst Carbon Neutral New Energy, Sch Intelligent Mat & New Energy, Nanchang 330103, Jiangxi, Peoples R China;[3]Guizhou Univ, Coll Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China;[4]Swinburne Univ Technol, Res Ctr Sustainable Technol, Fac Engn Comp & Sci, Sarawak, Malaysia;[5]Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore

第一机构：贵州理工学院

通信机构：corresponding author), Yuzhang Normal Univ, Inst Carbon Neutral New Energy, Sch Intelligent Mat & New Energy, Nanchang 330103, Jiangxi, Peoples R China.

年份：2026

卷号：474

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20255219793702);Scopus(收录号：2-s2.0-105025466304);WOS:【SCI-EXPANDED(收录号:WOS:001700752900001)】；

基金：The research was supported by Natural Science Foundation of Jiangxi Province (General Program, 20252BAC240232), Science and Technology Planning Project of Guizhou Province (Qiankehezhicheng [2021] Yiban 493 and Qiankehejichu-ZK [2023] Yiban 129), Doctoral Research Start-up Project of Yuzhang Normal University (0001845013), the National Natural Science Foundation of China (22062003), the National Research Foundation of Singapore, and A*STAR under its Low-Carbon Energy Research (LCER) Funding Initiative (FI) Project (U2102d2011, WBS: A-8000278-00-00).

语种：英文

外文关键词：Sol-gel method; Co-doping; Aerogel; TiO2-based catalyst; Adsorption-degradation

摘要：The preparation and application of high-performance aerogel photocatalysts have always attracted much attention. In this paper, SiF4 was subjected to a high-temperature gas-solid phase reaction combined with an alcoholysis reaction with elemental Si. Then, metal (Fe/Zn/Co/Y/La) and non-metal F-Si co-doped TiO2 aerogel catalysts were prepared by the sol-gel method combined with the atmospheric drying method. The adsorption-degradation performances of the catalysts were investigated by taking the dye rhodamine B (RhB) and the herbicide 2, 4-D as pollutant models. The catalysts were characterized by SEM, TEM, EDS, XRD, N-2-BET, UV-Vis DRS spectroscopy, and PL spectroscopy. The results showed that a series of aerogel catalysts synthesized by this method all had strong adsorption-degradation abilities for pollutants, showing good structure-performance relationship. The prepared aerogel catalysts all contain anatase-phase TiO2 with high crystallinity, and the doped metal La or Y often forms LaF3 or YF3. Under ultraviolet light, the Cat3-(TiO2)(0.95)Y-0.05 and Cat4-(TiO2)(0.95)La-0.05 catalysts exhibited the best performance in the adsorption-degradation of RhB and 2, 4-D. The adsorption-degradation rate of RhB was close to 100 % within 10 min, while that of 2, 4-D exceeded 90 % within 50 min. Meanwhile, under visible light, the adsorption-degradation rate of RhB by the Cat3-(TiO2)(0.95)Y-0.05 catalyst was as high as 98.3 % within 150 min, and the adsorption-degradation performance of this catalyst remained stable after multiple cycles of use.