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Gamma radiation induced optimized synthesis of amine functionalised poly-glycidyl methacrylate grafted poly-propylene non-woven fabric and its adsorption behaviour towards aqueous Pb(II)
Chemical Engineering Science ( IF 4.1 ) Pub Date : 2024-11-06 , DOI: 10.1016/j.ces.2024.120886
Amit Kanjilal, Krishan Kant Singh, Awadhesh Kumar

Comprehensive optimization of the functionalization of polypropylene (PP) non-woven fabric through gamma irradiation-induced graft polymerization of glycidyl methacrylate (GMA), results in a material having high grafting yield. The technique, utilizing a mutual irradiation method, produced poly-GMA (PGMA) grafted PP fabric with a remarkable grafting yield of 125 % in a 1:1 acetone–water mixture, subjected to 25 kGy of total dose at a dose rate of 5 kGyh−1. The enhancement of the amination process utilizing PGMA-grafted PP was investigated with polyamines. Under the optimized conditions, the diethylene triamine (DETA) functionalized variant was identified as an effective adsorbent for aqueous Pb2+ ions. The optimized adsorbent exhibited a high saturation capacity of approximately 230 mgg−1 for Pb2+ ions, demonstrating rapid kinetics at near-neutral pH and 25 °C. This low cost innovative material holds significant promise for effective lead removal from drinking water and industrial wastewater, offering a sustainable economical solution for environmental remediation.

中文翻译:


伽马辐射诱导胺功能化聚甲基丙烯酸缩水甘油酯接枝聚丙烯无纺布的优化合成及其对含水 Pb(II) 的吸附行为



通过甲基丙烯酸缩水甘油酯 (GMA) 的 γ 辐照诱导接枝聚合,全面优化聚丙烯 (PP) 无纺布的功能化,从而获得具有高接枝产率的材料。该技术利用互照射方法生产了 poly-GMA (PGMA) 接枝 PP 织物,在 1:1 丙酮-水混合物中具有 125% 的显着接枝率,以 5 kGyh-1 的剂量率承受 25 kGy 的总剂量。用多胺研究了利用 PGMA 接枝 PP 的胺化过程的增强。在优化条件下,二乙烯三胺 (DETA) 官能化变体被确定为 Pb2+ 水离子的有效吸附剂。优化的吸附剂对 Pb2+ 离子表现出约 230 mgg-1 的高饱和容量,在接近中性的 pH 值和 25 °C 下表现出快速动力学。 这种低成本的创新材料在有效去除饮用水和工业废水中的铅方面具有重要前景,为环境修复提供了一种可持续、经济的解决方案。
更新日期:2024-11-06
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