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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：全杂环基的含吡啶和噻唑环的聚酰胺-硫化物：用于去除铅的超强吸附性聚合物

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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：合成了含有吡啶和噻唑环且具有硫醚键的全杂环杂环基聚酰胺-硫化物（PAS），并将其用作从水中去除铅离子的新型吸附剂。通过FTIR，NMR和扫描电子显微镜（SEM）对聚合物吸附剂进行了充分表征。还通过热重分析研究了合成聚酰胺的热性能，结果表明该聚合物具有良好至中等的热稳定性。 SEM用于研究全杂环基聚酰胺的形态，其结果显示出多孔和球形的形态，从而保证了有效的金属吸附。通过改变接触时间和吸附剂浓度，研究了合成聚合物对Pb（II）离子的去除能力。 Pb（II）的最大去除率为99％。还使用流行的等温线和动力学模型研究了吸附的平衡行为和动力学。吸附容量约为714mgg（-1）。 Langmuir等温线和拟二级动力学模型分别表明与平衡和动力学吸附数据具有更好的一致性。通常，该研究的结果表明，合成的聚合物是从水中去除重金属的超级吸附剂。

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