文献类型：期刊文献

英文题名：Preparation of metal and FSi 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

机构：[1] Guizhou Institute of Technology, Guizhou, Guiyang, 550003, China; [2] School of Intelligent Materials and New Energy, Institute of Carbon Neutral New Energy, Yuzhang Normal University, Nanchang, 330103, China; [3] College of Chemistry and Chemical Engineering, Guizhou University, Guizhou, Guiyang, 550025, China; [4] Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Sarawak, Kuching, 93350, Malaysia; [5] Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore

第一机构：贵州理工学院

通信机构：School of Intelligent Materials and New Energy, Institute of Carbon Neutral New Energy, Yuzhang Normal University, Nanchang, 330103, 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)

语种：英文

外文关键词：Adsorption - Binary alloys - Boron compounds - Cobalt compounds - Degradation - High temperature applications - Lanthanum compounds - Photocatalysts - Rhodamine B - Rhodium compounds - Silicon compounds - Sol-gel process - Sol-gels - Yttrium compounds

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, N2-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)0.95Y0.05 and Cat4-(TiO2)0.95La0.05 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)0.95Y0.05 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. ? 2025 Elsevier B.V.