文献类型：期刊文献

英文题名：Constructing surface oxygen vacancy-rich ln2 O3-x /tubular carbon nitride S-scheme heterojunction for selective biomass-derivative oxidation coupled with H2 production

作者：Xia, Xukai[1];Jia, Yanyan[2,3];Wang, Weikang[1,4];Zhang, Jifang[4];Wang, Lele[1];Liu, Qinqin[1]

机构：[1]Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[4]Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys,Anhui Key Lab Nanomat & Nanotechn, Hefei 230031, Peoples R China

年份：2025

卷号：236

起止页码：301

外文期刊名：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY

收录：;EI(收录号：20251718293624);WOS:【SCI-EXPANDED(收录号:WOS:001480980800001)】；

基金：This work was financially supported by the Natural Science Foundation of China (Nos. 21972058 , 22102064 , and 22302080) and Anhui Key Laboratory of Nanomaterials and Nanotechnology , the Major Science and Technology Projects in Anhui Province (No. 202305a12020006) .

语种：英文

外文关键词：Oxygen vacancy; S -scheme heterojunction; In 2 O 3; x /tubular carbon nitride; HMF conversion; H 2 production

摘要：The integration of selective oxidation of renewable biomass and its derivatives with hydrogen (H2 ) production holds significant potential for simultaneously yielding value-added chemicals and "green H2 ", contributing to addressing sustainability challenges. The S-scheme charge transfer mechanism enhances charge separation by maintaining strong redox potentials at both ends, facilitating both oxidation and reduction reactions. Herein, we synthesize a visible-light-responsive oxygen vacancy-rich In2O3-x /tubular carbon nitride (IOOV/TCN) S-scheme heterojunction photocatalyst via electrostatic adherence for selective 5-hydroxymethylfurfural (HMF) oxidation to 2,5-diformylfuran (DFF) and 2,5-furandicarboxylic acid (FDCA), alongside H2 production. Under anaerobic conditions and visible-light irradiation, the optimal IOOV/TCN-10 catalyst achieves an HMF conversion of 94.8% with a selectivity of 53.6% for DFF and FDCA, and a H2 yield of 754.05 mu mol g-1 in 3 h. The significantly improved photocatalytic activity results from enhanced visible-light absorption, reduced carrier recombination, and abundant catalytic active sites due to the synergistic effect of surface oxygen vacancies, the hollow nanotube-based architecture, and the Sscheme charge transfer mechanism. This work highlights the great potentials of S-scheme heterojunctions in biomass conversion for sustainable energy use and chemical production. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.