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定制合成用于选择性吸附有毒有机污染物的三聚氰胺基胺缩醛疏水聚合物：废水净化的新举措。

Tailor-made synthesis of an melamine-based aminal hydrophobic polymer for selective adsorption of toxic organic pollutants: an initiative towards wastewater purification.

作者信息

Dey Debanjan, Chandra Murmu Naresh, Banerjee Priyabrata

机构信息

Surface Engineering and Tribology, Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue, Burdwan District Durgapur 713209 West Bengal India

Academy of Scientific and Innovative Research Anusandhan Bhawan, 2 Rafi Marg New Delhi 110001 India.

出版信息

RSC Adv. 2019 Mar 6;9(13):7469-7478. doi: 10.1039/c9ra00453j. eCollection 2019 Mar 1.

DOI:10.1039/c9ra00453j
PMID:35519997
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9061213/
Abstract

A cost-effective melamine-based polyaminal covalent polymer (CPCMERI-2) has been prepared by a facile synthetic approach using the solvothermal condensation reaction and characterized by solid-state analytical tools like C NMR, PXRD, N sorption isotherm and FT-IR. The electron-rich moieties in the skeletal backbone induce hydrophobicity in the polymer with an appreciable water contact angle of 130°. AFM study establishes the plausible reason for the hydrophobicity. On account of its high thermal and chemical stability, the polymer CPCMERI-2 has been projected as a next-generation sorbent material for oil-like materials, and executed liquid-phase adsorption of kerosene over water surface. CPCMERI-2 selectively adsorbs kerosene and has a feeble adsorption affinity towards diesel and some other organic solvents like chloroform, benzene, nitrobenzene, and toluene. To improve the bio-compatibility and cost effectiveness of the material, a bio-waste material like the peel of is used in the composite material, and it unveils a new avenue towards exploring the use of naturally abundant bio-material peels as low-cost sorbent materials. Additionally, CPCMERI-2 has gained attention due to its enormous potential in wastewater purification, which has also been tested in a lab-scale experimental setup. We expect that this material (CPCMERI-2) will harbinger a new type of composite polymer, wherein naturally abundant waste bio-materials could be used as precursors to explore its usefulness as an adsorbent for the removal of oils and organic pollutants.

摘要

通过溶剂热缩合反应的简便合成方法制备了一种具有成本效益的三聚氰胺基聚胺共价聚合物（CPCMERI-2），并用固态分析工具如碳核磁共振、粉末X射线衍射、氮吸附等温线和傅里叶变换红外光谱对其进行了表征。骨架主链中富含电子的部分使聚合物具有疏水性，水接触角可达130°。原子力显微镜研究确定了这种疏水性的合理原因。由于其高热稳定性和化学稳定性，聚合物CPCMERI-2已被视为一种用于类油物质的下一代吸附剂材料，并在水表面进行了煤油的液相吸附。CPCMERI-2选择性吸附煤油，对柴油和其他一些有机溶剂如氯仿、苯、硝基苯和甲苯的吸附亲和力较弱。为了提高材料的生物相容性和成本效益，在复合材料中使用了一种生物废料，如[此处缺失具体生物废料名称]的果皮，这为探索使用天然丰富的生物材料果皮作为低成本吸附剂材料开辟了一条新途径。此外，CPCMERI-2因其在废水净化方面的巨大潜力而受到关注，这也在实验室规模的实验装置中进行了测试。我们预计这种材料（CPCMERI-2）将引领一种新型复合聚合物的出现，其中天然丰富的废弃生物材料可作为前驱体，探索其作为去除油类和有机污染物吸附剂的用途。

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