A Supramolecular Polymer Network Based on Chitosan and Porphyrin and Its Application as an Adsorbent for Selective Removal of Dyes from Water

IF 6.5 3区材料科学 Q2 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Advanced Sustainable Systems Pub Date : 2024-06-25 DOI:10.1002/adsu.202400291

Yujie Cheng, Bicong Liang, Jianbin Chao, Xuehong Wei, Si-Dian Li, Pi Wang, Danyu Xia

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Abstract

Environmentally friendly, high adsorption efficiency, and recyclable adsorbents meet the actual needs of organic dye wastewater treatment. Driven by noncovalent interactions between chitosan (CS) and 5,10,15,20-tetra(4-hydroxyphenyl) porphyrin sodium (THPPNa) under acidic conditions, a supramolecular polymer network is constructed. The supramolecular polymer network is applied as an excellent adsorbent for the removal of organic dyes from water with high efficiency. In addition, the supramolecular adsorbent shows excellent selectivity for the removal of organic anionic dyes from the mixtures of organic anionic and cationic dyes in water. Furthermore, the removal efficiency of anionic dyes of the network adsorbent keeps over 95% even after five adsorption–desorption cycles, indicating its reusability. This supramolecular polymer network shows its great potential as a low-cost, effective, and selective adsorbent for removing organic dyes from water.

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基于壳聚糖和卟啉的超分子聚合物网络及其在选择性去除水中染料的吸附剂中的应用

环保、吸附效率高、可回收的吸附剂符合有机染料废水处理的实际需求。在酸性条件下，壳聚糖（CS）与 5,10,15,20-四（4-羟基苯基）卟啉钠（THPPNa）之间的非共价相互作用，构建了超分子聚合物网络。该超分子聚合物网络可作为一种优良的吸附剂，高效去除水中的有机染料。此外，该超分子吸附剂对去除水中有机阴离子染料和阳离子染料混合物中的有机阴离子染料具有极佳的选择性。此外，即使经过五次吸附-解吸循环，该网络吸附剂对阴离子染料的去除率仍保持在 95% 以上，这表明它具有可重复使用性。这种超分子聚合物网络显示出其作为一种低成本、高效和选择性吸附剂去除水中有机染料的巨大潜力。

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来源期刊

Advanced Sustainable Systems Environmental Science-General Environmental Science

CiteScore

10.80

自引率

4.20%

发文量

186

期刊介绍： Advanced Sustainable Systems, a part of the esteemed Advanced portfolio, serves as an interdisciplinary sustainability science journal. It focuses on impactful research in the advancement of sustainable, efficient, and less wasteful systems and technologies. Aligned with the UN's Sustainable Development Goals, the journal bridges knowledge gaps between fundamental research, implementation, and policy-making. Covering diverse topics such as climate change, food sustainability, environmental science, renewable energy, water, urban development, and socio-economic challenges, it contributes to the understanding and promotion of sustainable systems.