文献类型：期刊文献

中文题名：MIL-125(Ti)中引入高价态钨元素以促进光催化产氢 性能

英文题名：Installation of high-valence tungsten in MIL-125(Ti) for boosted photocatalytic hydrogen evolution

作者：Zhang, Yijun[1];Mao, Fangxin[1];Liu, Yuanwei[1];Wu, Xuefeng[1];Wen, Chunfang[1];Dai, Sheng[2];Liu, Pengfei[1];Yang, Huagui[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Adv Mat & Feringa Nobel Prize Scientist J, Sch Chem & Mol Engn, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2022

卷号：65

期号：5

起止页码：1237

外文期刊名：SCIENCE CHINA-MATERIALS

收录：;EI(收录号：20215211374048);WOS:【SCI-EXPANDED(收录号:WOS:000732505500001)】；

基金：This work was financially supported by the National Natural Science Funds for Distinguished Young Scholars (51725201), the International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (51920105003), the Innovation Program of Shanghai Municipal Education Commission (E00014), China Postdoctoral Science Foundation Funded Project (2020M681201) and Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400). The authors acknowledge the Fundamental Research Funds for the Central Universities (JKD01211519). The authors also thank the Frontiers Science Center for Materiobiology and Dynamic Chemistry, and crew of the 1W1B beamline of the Beijing Synchrotron Radiation Facility for the constructive assistance in the XAFS measurements and data analysis. Dai S acknowledges the support by Shanghai Rising-star Program (20QA1402400) and the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. Additional support was provided by the Feringa Nobel Prize Scientist Joint Research Center.

语种：中文

外文关键词：high-valence state; metal-organic frameworks; metal-to-cluster charge transfer; photocatalytic hydrogen production

摘要：Metal-organic frameworks (MOFs) possess the features of highly porosity-tunable and electronic-tunable structures, . Taking advantages of these merits, we successfully installed high-valence W6+ ions onto the Ti-oxo clusters of MIL-125(Ti) (W-MIL-125). The installed W6+ ions which form a W-O-Ti structure trigger the metal-to-cluster charge transfer (MCCT), together with an enhanced light absorption. Structural and spectroscopic characterizations reveal that the MCCT process optimizes the charge transfer process and efficiently separates the photogenerated electron-hole spatially. The as-obtained sample of 3.45 W-MIL-125 with optimized electronic structure demonstrates an enhanced photocatalytic hydrogen evolution performance of 1110.7 +/- 63.7 mu mol g(-1)h(-1) under light irradiation, which is 4.0 times that of the pristine MIL-125(Ti). This work will open up a new avenue for local structural modification of MOFs to boost photocatalytic performance.