Jiang Jianzhu, Kou Junning, Wu Qi, Chen Li, Geng Yun, Shan Guogang, Sun Chunyi, Su Zhongmin, Wang Xinlong
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, National & Local United Engineering Laboratory for Power Battery Institution, Northeast Normal University, Changchun, Jilin, 130024, China.
Department of Chemistry, Faculty of Science, Yanbian University Yanji, Jilin, 133002, China.
Angew Chem Int Ed Engl. 2025 Feb 24;64(9):e202410665. doi: 10.1002/anie.202410665. Epub 2025 Feb 5.
High capacity, selective recovery and separation of precious metals from complex aqueous solutions is essential but remains a challenge in practical applications. Here, we prepared a thiophene-modified aromatic porous organic cage (T-PAC) with high stability for precise recognition and recovery of gold. T-PAC exhibits an outstanding gold uptake capacity of up to 2260 mg/g with fast adsorption kinetics and high adsorption selectivity. It's also used to selectively recover gold from a variety of complex aqueous solutions in a stable and efficient manner. The theoretical calculations and dedicated experiments suggest that anion-π interactions between the [AuCl] and TFP fractions on T-PAC cooperated with S/N boning and redox effects play the decisive role in the highly efficient gold recovery performance.
从复杂水溶液中高容量、选择性地回收和分离贵金属至关重要，但在实际应用中仍然是一项挑战。在此，我们制备了一种具有高稳定性的噻吩修饰芳香多孔有机笼（T-PAC），用于精确识别和回收金。T-PAC表现出高达2260 mg/g的出色金吸附容量，具有快速的吸附动力学和高吸附选择性。它还被用于以稳定、高效的方式从各种复杂水溶液中选择性回收金。理论计算和专门实验表明，T-PAC上的[AuCl]与TFP部分之间的阴离子-π相互作用，与S/N键合和氧化还原效应协同作用，在高效金回收性能中起决定性作用。
