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PDA-cross-linked beta-cyclodextrin: a novel adsorbent for the removal of BPA and cationic dyes
Water Science and Technology ( IF 2.5 ) Pub Date : 2020-06-15 , DOI: 10.2166/wst.2020.286
Jianyu Wang 1 , Guang Cheng 1 , Jian Lu 1 , Huafeng Chen 1 , Yanbo Zhou 2
Affiliation  

Abstract In this study, 4,4′-(hexafluoroisopropene) diphthalic acid (PDA)-CD polymers containing β-cyclodextrin (CD) were synthesized for the adsorption of endocrine disrupting chemicals (EDCs) and dyes. It features great adsorption of bisphenol A (BPA), methylene blue (MB) and neutral red (NR). The maximum adsorption capacities of MB, NR and BPA can reach 113.06, 106.8 and 51.74 mg/g, respectively. The tandem adsorption results revealed that adsorptions of dyes and BPA onto PDA-CD polymer were two independent processes: non-polar BPA entrapment by cyclodextrin cavities while dyes were captured by the carboxyl groups and π-π stacking interactions. The adsorption processes performed well in a wide range of pH (4.0–10.0) and were not affected by fulvic acid (FA) and inorganic ions.

中文翻译:

PDA 交联 β-环糊精:一种用于去除 BPA 和阳离子染料的新型吸附剂

摘要在这项研究中,合成了含有β-环糊精(CD)的4,4'-(六氟异丙烯)二邻苯二甲酸(PDA)-CD聚合物,用于吸附内分泌干扰化学品(EDC)和染料。它对双酚A(BPA)、亚甲基蓝(MB)和中性红(NR)具有良好的吸附能力。MB、NR和BPA的最大吸附量分别达到113.06、106.8和51.74 mg/g。串联吸附结果表明,染料和 BPA 在 PDA-CD 聚合物上的吸附是两个独立的过程:环糊精空腔对非极性 BPA 的捕获,而染料被羧基和 π-π 堆积相互作用捕获。吸附过程在较宽的pH范围(4.0-10.0)下表现良好,并且不受黄腐酸(FA)和无机离子的影响。
更新日期:2020-06-15
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