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Rapid and Efficient Removal of Diverse Anionic Water Contaminants Using a Guanidium-Based Ionic Covalent Organic Network (iCON)
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2022-08-20 , DOI: 10.1021/acsapm.2c00989 Sohom Chandra 1 , Atikur Hassan 1 , Prince 1 , Akhtar Alam 1 , Neeladri Das 1
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2022-08-20 , DOI: 10.1021/acsapm.2c00989 Sohom Chandra 1 , Atikur Hassan 1 , Prince 1 , Akhtar Alam 1 , Neeladri Das 1
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The use of ionic porous materials for the detoxification of water has been receiving widespread research attention since the last decade. Such materials are associated with attractive features such as a facile synthetic route, easy scalability, and excellent performance in the removal of pollutants from wastewater. To further enrich the literature on ionic porous materials as superior adsorbents, this work describes the construction of an ionic covalent organic network (iCON-5) using Schiff-base polycondensation of triamminoguanidium chloride and 4,4′,4″-((1,3,5-triazine-2,4,6-triyl)tris(oxy))tribenzaldehyde. The resulting polymeric framework exhibits good physicochemical stability. The presence of exchangeable chloride counteranions in the polymeric network ensures the efficient capture of various anionic pollutants from wastewater. The iCON-5 displays a good uptake capacity toward a wide range of inorganic/organic species (CrO42–, TcO4–, I3–, diclofenac, and picrate) that are proclaimed water pollutants. In addition, iCON-5 is easy to regenerate and can be reused at least 5 times without significant compromise in uptake capacities. Furthermore, the cationic network is competent in the extraction of anionic pollutants from systems mimicking real-world samples (such as pollutant-spiked tap water, seawater, river water, lake water, and pond water). Thus, iCON-5 has the desired characteristics anticipated in a porous adsorbent for the sequestration of various anionic contaminants from wastewater.
中文翻译：
使用胍基离子共价有机网络 (iCON) 快速有效地去除各种阴离子水污染物
近十年来，使用离子多孔材料对水进行解毒一直受到广泛的研究关注。这种材料具有吸引人的特点，例如简便的合成路线、易于扩展和在去除废水中的污染物方面具有出色的性能。为了进一步丰富关于离子多孔材料作为优质吸附剂的文献，这项工作描述了使用三氨基胍氯化物和 4,4',4"-((1, 3,5-三嗪-2,4,6-三基）三（氧基））三苯甲醛。所得聚合物骨架表现出良好的物理化学稳定性。聚合物网络中可交换的氯抗衡阴离子的存在确保了从废水中有效捕获各种阴离子污染物。4 2–、TcO 4 –、I 3 –、双氯芬酸和苦味酸盐）被宣布为水污染物。此外，iCON-5 易于再生，可重复使用至少 5 次，而不会显着影响吸收能力。此外，阳离子网络能够从模拟真实世界样品（如污染物加标的自来水、海水、河水、湖水和池塘水）的系统中提取阴离子污染物。因此，iCON-5 具有预期的多孔吸附剂特性，可用于隔离废水中的各种阴离子污染物。
更新日期：2022-08-20
中文翻译：
使用胍基离子共价有机网络 (iCON) 快速有效地去除各种阴离子水污染物
近十年来，使用离子多孔材料对水进行解毒一直受到广泛的研究关注。这种材料具有吸引人的特点，例如简便的合成路线、易于扩展和在去除废水中的污染物方面具有出色的性能。为了进一步丰富关于离子多孔材料作为优质吸附剂的文献，这项工作描述了使用三氨基胍氯化物和 4,4',4"-((1, 3,5-三嗪-2,4,6-三基）三（氧基））三苯甲醛。所得聚合物骨架表现出良好的物理化学稳定性。聚合物网络中可交换的氯抗衡阴离子的存在确保了从废水中有效捕获各种阴离子污染物。4 2–、TcO 4 –、I 3 –、双氯芬酸和苦味酸盐）被宣布为水污染物。此外，iCON-5 易于再生，可重复使用至少 5 次，而不会显着影响吸收能力。此外，阳离子网络能够从模拟真实世界样品（如污染物加标的自来水、海水、河水、湖水和池塘水）的系统中提取阴离子污染物。因此，iCON-5 具有预期的多孔吸附剂特性，可用于隔离废水中的各种阴离子污染物。
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