Abstract The synthesis of poly(2-aminothiazole)(PAT) for selective removal of Hg(II) in aqueous solutions has been previously described [Ind. Eng. Chem. Res. 2016, 55, 4911–4918]. In the present work, the synthesis of PAT by chemical oxidation method using copper chloride as the oxidant in aqueous solution was revisited. The effects of the oxidant/monomer molar ratio and polymerization temperature on the polymerization yield and adsorption capacity were investigated. The PATs were characterized by FT-IR, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Adsorption experiments for selected samples were carried out to investigate the adsorption properties for Hg(II). The effects of pH, contact time and initial Hg(II) concentration on the adsorption of Hg(II) were studied. The adsorption of PAT exhibited a Langmuir-type isotherm and the adsorption kinetics experiments revealed that the adsorption reached equilibrium within 7 h. Significantly improved Hg(II) adsorption capacity can be achieved with this new PAT preparative protocol.

中文翻译：

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重新审视用于去除水溶液中 Hg(II) 的聚（2-氨基噻唑）的合成

摘要先前已经描述了合成聚（2-氨基噻唑）（PAT）以选择性去除水溶液中的 Hg（II） [Ind. 英。化学 水库 2016, 55, 4911–4918]。在目前的工作中，重新研究了以氯化铜为氧化剂在水溶液中通过化学氧化法合成 PAT。研究了氧化剂/单体摩尔比和聚合温度对聚合产率和吸附容量的影响。通过FT-IR、X射线光电子能谱（XPS）和扫描电子显微镜（SEM）对PAT进行表征。对选定样品进行吸附实验以研究 Hg(II) 的吸附特性。研究了 pH、接触时间和初始 Hg(II) 浓度对 Hg(II) 吸附的影响。PAT的吸附表现出Langmuir型等温线，吸附动力学实验表明吸附在7小时内达到平衡。使用这种新的 PAT 制备方案可以显着提高 Hg(II) 吸附能力。