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首页> 外文期刊>Journal of Polymers and the Environment >Wholly Heterocycles-Based Polyamide-Sulfide Containing Pyridine and Thiazole Rings: A Super-Adsorbent Polymer for Lead Removal
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Wholly Heterocycles-Based Polyamide-Sulfide Containing Pyridine and Thiazole Rings: A Super-Adsorbent Polymer for Lead Removal

机译：完全杂环基聚酰胺 - 硫化物含有吡啶和噻唑环：用于铅去除的超吸附剂聚合物

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摘要

Wholly heterocycles-based polyamide-sulfide (PAS) containingpyridine and thiazole rings with thioether linkage was synthesized and used as a novel adsorbent for lead ion removal from water. The polymer adsorbent was fully characterized via FTIR, NMR and scanning electron microscopy (SEM). The thermal properties of the synthesized polyamide were also studied by thermogravimetric analysis and the outcome showed that the polymer has a good to moderate thermal stability. The SEM was used to investigate the morphology of the wholly heterocycles-based polyamide and the outcomes displayed a porous and globular-like morphology, which guarantee effective metal adsorption. Pb(II) ion removal capacity of the synthesized polymer was studied by varying the contact time and the adsorbent concentration. The maximum removal of Pb(II) was obtained as 99%. Equilibrium behavior and kinetic of the adsorption were also investigated using prevalent isotherm and kinetic models. The adsorption capacity was obtained to be around 714mgg(-1). The Langmuir isotherm and the pseudo-second order kinetic model suggested superior agreement with the equilibrium and kinetic adsorption data, respectively. Generally, the results of this research demonstrated that the synthesized polymer is a super-adsorbent for heavy metal removal from water.
机译：合成完全杂环基聚酰胺 - 硫化物（PAS）含有硫替啶和噻唑环，并用作新的吸附剂，用于从水中除去离子离子。通过FTIR，NMR和扫描电子显微镜（SEM）完全表征聚合物吸附剂。通过热重分析还研究了合成聚酰胺的热性质，结果表明聚合物具有良好的温和稳定性。 SEM用于研究全杂杂环基聚酰胺的形态，结果显示多孔和球状形态，保证有效的金属吸附。通过改变接触时间和吸附剂浓度来研究合成聚合物的离子去除能力。获得Pb（II）的最大去除为99％。还使用普遍的等温和动力学模型研究了均衡行为和吸附的动力学。获得吸附能力为约714mgg（-1）。 Langmuir等温和伪二阶动力学模型分别与平衡和动力学吸附数据分别提出了卓越的一致性。通常，该研究的结果证明了合成的聚合物是一种超吸附剂，用于从水中除去重金属。

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