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首页> 外文期刊>RSC Advances >A selective and easily recyclable dimer based on a calix[4]pyrrole derivative for the removal of mercury(ii) from water
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A selective and easily recyclable dimer based on a calix[4]pyrrole derivative for the removal of mercury(ii) from water

机译：基于CALIX [4]吡咯衍生物的选择性和易再循环的二聚体，用于从水中去除汞（II）

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摘要

A recyclable mercury( II ) selective dimer based on a calix[4]pyrrole derivative has been synthesised and characterised by mass and FT-IR spectrometry, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX). Information regarding the ability of the dimer to interact with metal cations was obtained from FTIR and SEM-EDX analyses. A striking feature of micrographs of the loaded dimer is the change of morphology with the cation. Based on these results, optimal conditions for removing cations from water were assessed under different experimental conditions. Results obtained demonstrate that the removal process is fast. Capacity values and selectivity factors show that the dimer is selective for Hg( II ) in single and multiple component metal solutions relative to other cations. Single-ion transfer Gibbs energies from water to a solvent containing common functionalities to those of the dimer were used to assess the counter-ion effect on the removal process. Agreement is found between these data and energy calculations derived from molecular simulation studies. Studies on polluted water in the presence of normal water components in addition to toxic metal cations are reported. Further experimental work on wastewater from the mining industry is in progress.
机译：已经合成了基于CALIX [4]吡咯衍生物的可再循环汞（II）选择性二聚体，并通过质量和FT-IR光谱法，扫描电子显微镜（SEM）和能量分散X射线（EDX）。关于二聚体与金属阳离子相互作用的能力的信息是从FTIR和SEM-EDX分析中获得的。装载二聚体的显微照片的显着特征是与阳离子的形态变化。基于这些结果，在不同的实验条件下评估用于从水中除去阳离子的最佳条件。获得的结果表明去除过程快。容量值和选择性因子表明，二聚体相对于其他阳离子的单一和多个组分金属溶液中的Hg（II）是选择性的。使用从水到含有常见功能的溶剂的单离子转移到含二聚体常见功能的溶剂来评估对去除过程的反离子效应。在这些数据和能量计算之间发现了来自分子模拟研究的协议。报道了除毒性金属阳离子外，污染水在普通水组分存在下的研究。进一步的矿业废水的进一步实验工作正在进行中。

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