Cyclic Trinuclear Units Based Covalent Metal‐Organic Frameworks for Gold Recovery
Abstract
Abstract The development of porous solids for gold recovery is highly desired from both an economical and environmental point of view; however, the design of solid adsorbents with high overall performance is still challenging. Herein, we designed three copper(I) cyclic trinuclear units, Cu(I)‐CTUs, based covalent metal‐organic frameworks (CMOFs) by networking metal clusters with dynamic covalent linkages. These CMOFs deliver a high gold adsorption capacity of 3687 mg g −1 , ultra‐fast adsorption kinetics (i.e., removal efficiency > 99% within 20 s), excellent selectivity and reusability. In addition, they can be readily used for gold extraction from e‐waste. Owing to the rich redox properties of Cu‐CTUs, these CMOFs show three sorption mechanisms including adsorption, chemical reduction and photocatalytic reduction. Interestingly, the gold‐loaded CMOFs can be used as catalysts for hydration of alkynes to ketones with high yields (e.g., up to ∼ 95% for 6 examples).
Article Details
Authors (10)
Jie Luo
Jia‐Tong Lin
College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University Guangzhou 510632 China
Xiao Luo
Na Yin
Mo Xie
State Key Laboratory for Flexible Electronics (LoFE)
Xu Chen
Jinan University , , , ,
Ying‐Qiang Li
College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University Guangzhou 510632 China
Yang‐Guang Li
College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University Guangzhou 510632 China
Guo‐Hong Ning
College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University Guangzhou China
Dan Li