Electrospinning Membrane with Polyacrylate Mixed Beta-Cyclodextrin: An Efficient Adsorbent for Cationic Dyes.

IF 4.9 3区工程技术 Q1 POLYMER SCIENCE Polymers Pub Date : 2025-01-20 DOI:10.3390/polym17020243

Chunling Zheng, Wei Zhao, Xiaoqian Tu, Shaoqiang Zhou

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Abstract

A simple and non-chemical binding nanofiber (β-CD/PA) adsorbent was obtained by electrospinning a mixture of β-cyclodextrin (β-CD) and polyacrylate (PA). The cationic dyes in wastewater were removed by the host-guest inclusion complex of the β-cyclodextrin and the electrostatic interaction between the polyacrylate and the dyes groups. The influence of the content of β-cyclodextrin on the surface morphology and adsorption capacity of the nanofiber membrane was discussed, and the optimized adsorption capacity of nanofiber adsorption material was determined. The adsorption capacity of nanofiber adsorbents for basic red 9, basic red 14, basic red 46, basic blue 9, basic yellow 19 and basic yellow 28 was 86.71 mg/g, 21.513 mg/g, 18.926 mg/g, 44.525 mg/g, 116.516 mg/g and 155.206 mg/g, respectively. The effects of different initial concentrations and pH values on the adsorption properties of adsorbent materials were studied. The kinetic analysis showed that the adsorption process of nanofibers for cationic dyes was more in line with the pseudo-second-order kinetic adsorption model. Moreover, nanofiber adsorbent could be easily separated from the dye solution and showed high recycling efficiency. These results indicated that the β-cyclodextrin/polyacrylate composite nanofibers are expected to be recyclable adsorbents in dye wastewater treatment.

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聚丙烯酸酯混合-环糊精静电纺丝膜：一种高效的阳离子染料吸附剂。

以β-环糊精（β-CD）和聚丙烯酸酯（PA）为原料，采用静电纺丝法制备了一种简单、无化学结合的纳米纤维（β-CD/PA）吸附剂。通过β-环糊精的主客体包合物和聚丙烯酸酯与染料基团的静电相互作用去除废水中的阳离子染料。探讨了β-环糊精含量对纳米纤维膜表面形貌和吸附量的影响，确定了纳米纤维吸附材料的最佳吸附量。纳米纤维吸附剂对碱式红9、碱式红14、碱式红46、碱式蓝9、碱式黄19和碱式黄28的吸附量分别为86.71 mg/g、21.513 mg/g、18.926 mg/g、44.525 mg/g、116.516 mg/g和155.206 mg/g。研究了不同初始浓度和pH值对吸附剂吸附性能的影响。动力学分析表明，纳米纤维对阳离子染料的吸附过程更符合准二级动力学吸附模型。此外，纳米纤维吸附剂可以很容易地从染料溶液中分离出来，并且具有很高的回收效率。这些结果表明，β-环糊精/聚丙烯酸酯复合纳米纤维有望成为染料废水处理中可循环利用的吸附剂。

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来源期刊

Polymers POLYMER SCIENCE-

CiteScore

8.00

自引率

16.00%

发文量

4697

审稿时长

1.3 months

期刊介绍： Polymers (ISSN 2073-4360) is an international, open access journal of polymer science. It publishes research papers, short communications and review papers. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Polymers provides an interdisciplinary forum for publishing papers which advance the fields of (i) polymerization methods, (ii) theory, simulation, and modeling, (iii) understanding of new physical phenomena, (iv) advances in characterization techniques, and (v) harnessing of self-assembly and biological strategies for producing complex multifunctional structures.