Gutierrez Angela M, Bhandari Rohit, Weng Jiaying, Stromberg Arnold, Dziubla Thomas D, Hilt J Zach
Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky.
Superfund Research Center, University of Kentucky, Lexington, Kentucky.
J Appl Polym Sci. 2020 Oct 5;137(37). doi: 10.1002/app.49109. Epub 2020 Feb 22.
In this work, the development of novel magnetic nanocomposite microparticles (MNMs) via free radical polymerization for their application in the remediation of contaminated water is presented. Acrylated plant-based polyphenols, curcumin multiacrylate (CMA) and quercetin multiacrylate (QMA), were incorporated as functional monomers to create high affinity binding sites for the capture of polychlorinated biphenyls (PCBs), as a model pollutant. The MNMs were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, dynamic light scattering, and UV-visible spectroscopy. The affinity of these novel materials for PCB 126 was evaluated and fitted to the nonlinear Langmuir model to determine binding affinities ( ). The results suggest the presence of the polyphenolic moieties enhances the binding affinity for PCB 126, with values comparable to that of antibodies. This demonstrates that these nanocomposite materials have promising potential as environmental remediation adsorbents for harmful contaminants.
在这项工作中，介绍了通过自由基聚合制备新型磁性纳米复合微粒（MNMs）及其在污染水修复中的应用。将丙烯酸化的植物基多酚、姜黄素多丙烯酸酯（CMA）和槲皮素多丙烯酸酯（QMA）作为功能单体掺入，以创建用于捕获作为模型污染物的多氯联苯（PCBs）的高亲和力结合位点。通过傅里叶变换红外光谱、热重分析、扫描电子显微镜、动态光散射和紫外可见光谱对MNMs进行了表征。评估了这些新型材料对PCB 126的亲和力，并将其拟合到非线性朗缪尔模型以确定结合亲和力（ ）。结果表明，多酚部分的存在增强了对PCB 126的结合亲和力，其 值与抗体相当。这表明这些纳米复合材料作为有害污染物的环境修复吸附剂具有广阔的应用前景。
