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Aminoparticles - synthesis, characterisation and application in water purification

机译：氨基颗粒-合成，表征和在水净化中的应用

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摘要

Polymer microparticles have been used in catalysis, sensing, environmental and biomedical applications. In this paper, the synthesis and characterization of amine functionalized polymer microparticles or aminoparticles via copolymerisation of glycidyl methacrylate and styrene monomers are reported. The surface of the microspheres was grafted with different amines - ethylenediamine, hexamethylenediamine, xylylenediamine and n-butylamine to increase the number and types of amino groups on the surface. The amine content on the microsphere surface was estimated and compared using elemental analyses and volumetric titration method. The fully characterized aminoparticles were used for the extraction of heavy metal ions and emerging pollutants such as gold and silver nanoparticles from aqueous solutions. The effect of contact time and concentrations of adsorbates on the extraction efficiency of pollutants, adsorption kinetics and isotherms were studied in detail. The extraction efficiencies of the synthesized particles were proportional to the surface amine content and surface charges of the particles. Such particles will be useful towards developing novel column materials for analytical separations.
机译：聚合物微粒已用于催化，传感，环境和生物医学应用。本文报道了通过甲基丙烯酸缩水甘油酯与苯乙烯单体共聚合成胺官能化聚合物微粒或氨基颗粒的方法。微球的表面接有不同的胺-乙二胺，六亚甲基二胺，二甲苯二胺和正丁胺，以增加表面上氨基的数量和类型。使用元素分析和体积滴定法估算并比较了微球表面的胺含量。充分表征的氨基颗粒用于从水溶液中提取重金属离子和新兴污染物，例如金和银纳米颗粒。详细研究了接触时间和吸附物浓度对污染物提取效率，吸附动力学和等温线的影响。合成颗粒的提取效率与颗粒的表面胺含量和表面电荷成正比。这种颗粒将有助于开发用于分析分离的新型色谱柱材料。

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