Colloids and Surfaces A: Physicochemical and Engineering Aspects ( IF 4.9 ) Pub Date : 2023-12-10 , DOI: 10.1016/j.colsurfa.2023.132951
Yaoqiang Hu , Qinghua Hou , Haining Liu , Xiushen Ye
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Two copolymer microspheres, poly(styrene-N,N′-methylenebis(2-propenamide)-acrylic acid) (PS-MBA-AA) and poly(styrene-N,N′-methylenebis(2-propenamide)-methacrylic acid) (PS-MBA-MAA), were synthesized through a surfactant-free one-pot copolymerization method, rendering them easily prepared. Through the utilization of scanning electron microscopy (SEM), laser particle size analysis, Fourier transform infrared spectroscopy (FTIR), BET adsorption-desorption isotherms, and energy dispersive spectrometry (EDS), the structures of PS-MBA-AA and PS-MBA-MAA were meticulously examined. These analyses provided substantial evidence that the copolymer microspheres possess a relatively uniformity in terms of both particle size and composition. The copolymer microspheres, PS-MBA-AA and PS-MBA-MAA, demonstrate remarkable efficiency in the rapid adsorption of Cu2+, Pb2+, and Cd2+. Notably, they possess the ability to achieve over 80% of their equilibrium adsorption capacity within a mere 10 min. It is worth noting that both types of copolymers exhibit superior adsorption efficacy and anti-coexisting ion interference, particularly in relation to Pb2+ among the three of heavy metal ions.
中文翻译:
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一锅法、无表面活性剂合成聚(苯乙烯-N,N'-亚甲基双(2-丙烯酰胺)-丙烯酸)和聚(苯乙烯-N,N'-亚甲基双(2-丙烯酰胺)-甲基丙烯酸)微球吸附去除重金属离子
两种共聚物微球,聚(苯乙烯-N,N'-亚甲基双(2-丙烯酰胺)-丙烯酸)(PS-MBA-AA)和聚(苯乙烯-N,N'-亚甲基双(2-丙烯酰胺)-甲基丙烯酸) (PS-MBA-MAA)通过无表面活性剂的一锅共聚法合成,易于制备。通过利用扫描电子显微镜(SEM)、激光粒度分析、傅里叶变换红外光谱(FTIR)、BET吸附-脱附等温线和能量色散光谱(EDS),研究了PS-MBA-AA和PS-MBA的结构-MAA经过仔细检查。这些分析提供了充分的证据表明共聚物微球在粒径和组成方面具有相对均匀性。共聚物微球PS-MBA-AA和PS-MBA-MAA在快速吸附Cu 2+、Pb2+和Cd2+。值得注意的是,它们能够在短短 10 分钟内达到 80% 以上的平衡吸附能力。值得注意的是,两类共聚物均表现出优异的吸附功效和抗共存离子干扰的能力,特别是对于三种重金属离子中的2+