伽马辐射诱导的胺功能化聚缩水甘油酯接枝聚丙烯无纺布的优化合成及其对含水铅(II)的吸附行为

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2024-11-06 DOI:10.1016/j.ces.2024.120886

Amit Kanjilal , Krishan Kant Singh , Awadhesh Kumar

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引用次数: 0

摘要

通过伽马辐照诱导甲基丙烯酸缩水甘油酯（GMA）接枝聚合，对聚丙烯（PP）无纺布的功能化进行了全面优化，从而获得了一种具有高接枝率的材料。在 1:1 丙酮-水混合物中，以 5 kGyh-1 的剂量率、25 kGy 的总剂量，利用相互辐照法生产出了聚-甲基丙烯酸缩水甘油酯（PGMA）接枝聚丙烯织物，接枝率高达 125%。利用多胺对利用 PGMA 接枝 PP 的胺化过程进行了研究。在优化条件下，二亚乙基三胺（DETA）功能化变体被确定为水性 Pb2+ 离子的有效吸附剂。优化后的吸附剂对 Pb2+ 离子的饱和容量约为 230 mgg-1，在接近中性 pH 值和 25 °C 的条件下表现出快速的动力学特性。这种低成本的创新材料有望有效去除饮用水和工业废水中的铅，为环境修复提供可持续的经济解决方案。

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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)

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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)

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.

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来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.