文献类型：期刊文献

英文题名：Light-driven methanol-to-olefins catalysis over W18O49/SAPO-34 hierarchical nanocomposite with strong photothermal effect

作者：Zhang, Xueliang Liu, Yike Wang, Xin Zhou, Yan Wang, Xiaoli Chen, Siyuan Ren, Yaqiang Ding, Dezhi Tian, Fangyuan Li, Yingfen Huang, Fang Luo, Dajun

通信作者：Zhang, XL[1];Luo, DJ[1]

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Huzhou Coll, Sch Intelligent Mfg, Huzhou 313000, Peoples R China;[3]China Automot Technol & Res Ctr Co Ltd, Tianjin 300300, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2024

卷号：12

期号：5

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20243817041798);Scopus(收录号：2-s2.0-85203620513);WOS:【SCI-EXPANDED(收录号:WOS:001360777600001)】；

基金：The authors gratefully acknowledge financial support from the Guizhou Provincial Science and Technology Projects [QKHJC-ZK (2022) -General 189] ; The Science and Technology Support Plan of Guizhou province (QKH support [2023] 347, QKH support [2023] 427) ; The National Natural Science Foundation of China (52363005) .

语种：英文

外文关键词：SAPO-34; Photothermal catalysis; Methanol-to-olefins; Surface plasmon resonance

摘要：Solar-light-driven photothermal catalysis attracts attention because of the significant energy savings and environmental friendliness compared with thermal catalysis. In the present work, W18O49/SAPO-34 composite materials with hierarchical pore networks were constructed by a simple hydrothermal method, and applied into photothermal catalysis for methanol-to-olefins transformation. In combination of the broaden light absorption of W18O49 and moderate acid site of SAPO-34, the W18O49/SAPO-34 composite showed a rapid temperature rise on the surface of the catalysts due to the strong photo-to-thermal effect of W18O49. Methanol conversion of 90% and ethylene selectivity of 60 % were achieved for the optimized W18O49/SAPO-34 catalyst, much higher than that of bare W18O49 and SAPO-34. The excellent methanol dehydration performance was attributed to the strong plasmonic absorption in the visible and near infrared light, the efficient photothermal conversion effect by localized plasmon heating on the W18O49 nanorods, and synergistic catalysis between W18O49 and SAPO-34. This photothermal catalyst showed great potential in the industrial applications of photocatalytic methanol-to-olefins conversion.