文献类型：期刊文献

英文题名：Synergistic photocatalysis-ion exchange strategy enabling high-efficiency recovery of trace rhodium from organic-rhodium wastewater

作者：Deng, Xiaoming[1,2,3];Zhou, Yingjie[2,3];Bian, Zhenfeng[2,3];Li, Hexing[1,2,3]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Shanghai Normal Univ, Educ Minist Key Lab Resource Chem, Shanghai 200234, Peoples R China;[3]Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Shanghai 200234, Peoples R China

年份：2026

卷号：383

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20254419408350);WOS:【SCI-EXPANDED(收录号:WOS:001608578300001)】；

基金：This work was supported by the State Key Laboratory of Chemical Engineering (No. SKL-ChE-23C04) , the National Key Research and Development Program of China (2020YFA0211004) , the National Nat-ural Science Foundation of China (22525606, 22236005, 22176128) , the Innovation Program of Shanghai Municipal Education Commission (2023ZKZD50) , Shanghai Leading Talent Program of Eastern Talent Plan (LJ2023002) , Shanghai Government (22dz1205400, 23520711100) , Chinese Education Ministry Key Laboratory and Inter-national Joint Laboratory on Resource Chemistry (IJLRC) , and Shanghai Eastern Scholar Program. The authors also thank the "111 Innovation and Talent Recruitment Base on Photochemical and Energy Materials" (No. D18020) , Shanghai Engineering Research Center of Green Energy Chemical Engineering (18DZ2254200) , and Shanghai Frontiers Science Center of Biomimetic Catalysis.

语种：英文

外文关键词：Organic-rhodium; Two-dimensional materials; Photocatalytic; Ion-exchange; Rh recycling

摘要：Homogeneous organometallic catalysts have been widely used in various organic reactions owing to the high activity and selectivity. However, those catalysts are difficult for separation after reactions, which may cause waste of noble metals and even the water pollution by heavy metal ions. Efficient recovery of noble metals is crucial for sustainable resource management and environmental protection. However, recycle of trace noble metals in complexes present significant challenges. Herein, we develop a nanosheet Zn-SnS combining visiblelight-driven photocatalytic degradation of organic ligand in [(COD)RhCl]2 complex and capture of the released Rh3 + inside the [Sn3S7]n2n- framework by in situ ion-exchange. The COD degradation yield reached up to 86 %. Meanwhile, the stored Rh3+ could be easily recycled by reversed ion-exchange in ZnSO4 solution with the efficiency of 92 %. More importantly, the catalyst displayed excellent durability and could be used repetitively. Both experimental data and DFT calculations elucidated the underlying photocatalytic and ion-exchange mechanisms. This work presents a sustainable and efficient approach for recycling trace Rh or other metals from homogeneous organometallic catalysts after being used in reactions, contributing to circular resource utilization and pollution control.