作者:Briana Aguila、Qi Sun、Harper C. Cassady、Chuan Shan、Zhiqiang Liang、Abdullah M. Al‐Enizic、Ayman Nafadyc、Joshua T. Wright、Robert W. Meulenberg、Shengqian Ma
DOI:10.1002/anie.202006596
日期:2020.10.26
To offset the environmental impact of platinum‐group element (PGE) mining, recycling techniques are being explored. Porous organic polymers (POPs) have shown significant promise owing to their selectivity and ability to withstand harsh conditions. A series of pyridine‐based POP nanotraps, POP‐Py, POP‐pNH2‐Py, and POP‐oNH2‐Py, have been designed and systematically explored for the capture of palladium
为了抵消铂族元素(PGE)开采对环境的影响,正在探索回收技术。多孔有机聚合物(POPs)由于其选择性和承受苛刻条件的能力而显示出巨大的前景。已经设计并系统地探索了一系列基于吡啶的POP纳米捕集阱,POP-Py,POP- p NH 2 -Py和POP- o NH 2 -Py,以捕获钯(最常用的PGE之一)。所有的POP纳米捕集阱均显示出记录的吸收和快速捕获,其中的氨基对提高性能至关重要。在POP nanotrap再生和选择性进一步测试发现,POP- ö NH 2 -py跑赢POP-p NH 2 -Py。单晶X-射线分析表明,POP- ö NH 2 -py提供更强的复合物相比,POP- p NH 2 -py由于氨基和协调的氯分子之间的分子内氢键。这些结果证明了对吸附剂的轻微修饰如何可以最大化其性能。