Green synthesis of an ionic porous organic polymer for efficient capture of environmentally toxic MnO4− and I3− from water†

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Soft Matter Pub Date : 2024-09-04 DOI:10.1039/D4SM00679H

Atikur Hassan, Rishabh Kumar Pandey, Arnab Chakraborty, Sk Abdul Wahed, T. Rajagopala Rao and Neeladri Das

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Abstract

The syntheses of ionic porous organic polymers (iPOPs) via an ionothermal strategy or using solvents with high boiling points are not environmentally friendly approaches. Furthermore, green synthesis of an ionic porous organic polymer has not been reported to date. The azo-coupling reaction is considered a green synthetic strategy and has been used to obtain a new ionic porous organic polymer (iPOP-6) wherein water is used as a solvent. iPOP-6 turns out to be a useful adsorbent that can scavenge toxic water pollutants (MnO₄⁻ and I₃⁻) in an energy efficient manner via an ion exchange based adsorption process. The distribution coefficients (K_d) associated with the removal of MnO₄⁻ and I₃⁻ are greater than 10⁵ mL g⁻¹ – a desirable feature observed in a superior adsorbent. iPOP-6 can remove such pollutants from water samples collected from different water bodies with good capture efficiency. The removal mechanism was also ratified by theoretical studies. Overall, this work presents a new ionic POP with improved features and performance for water purification applications.

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离子多孔有机聚合物的绿色合成，用于从水中高效捕获对环境有毒的 MnO4- 和 I3-。

通过离子热策略或使用高沸点溶剂合成离子多孔有机聚合物（iPOPs）的方法并不环保。此外，离子多孔有机聚合物的绿色合成迄今尚未见报道。通过基于离子交换的吸附过程，iPOP-6 被证明是一种有用的吸附剂，能以高效节能的方式清除有毒水污染物（MnO4- 和 I3-）。与去除 MnO4- 和 I3- 相关的分布系数（Kd）大于 105 mL g-1，这是一种优质吸附剂的理想特性。理论研究也证实了其去除机理。总之，这项研究提出了一种新的离子持久性有机污染物，其特点和性能均有所改进，可用于水净化应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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