Natural fibers and materials are well known for adsorption studies, whereas synthetic fibers have not received enough attention in this field. Therefore, an attempt is made here to study the adsorption properties of synthetic poly(methyl methacrylate) (PMMA) nanofibers and methods for improving or modifying their adsorption properties. PMMA nanofibers are prepared by the most recent electrospinning technique and the structural, and hence, the adsorption properties of the PMMA nanofibers are modified by preparing them in surface-roughened and coaxial hollow forms through electrospinning. Studies of the adsorption of methylene blue (MB) and brilliant green (BG) dyes by the three types of PMMA nanofiber demonstrate that all the PMMA nanofibers show a certain amount of adsorption. Fiber samples that had adsorbed MB and BG were subjected to various adsorption isotherms which confirmed the multilayer adsorption properties of the fiber samples by satisfying various isotherms, mainly the Freundlich and Elovich adsorption isotherms. Kinetic studies of pure and structurally modified PMMA nanofibers that had adsorbed MB and BG dyes proved that the intraparticle diffusion model applied to these fiber samples. Here, it is also shown that the adsorption properties of electrospun synthetic fibers can be further improved by structural modification using the possibilities of electrospinning.

天然纤维和材料以吸附研究而闻名，而合成纤维在该领域尚未受到足够的关注。因此，本文尝试研究合成聚甲基丙烯酸甲酯 (PMMA) 纳米纤维的吸附性能以及改善或改变其吸附性能的方法。PMMA 纳米纤维是通过最新的静电纺丝技术和结构制备的，因此，通过静电纺丝将 PMMA 纳米纤维制备成表面粗糙和同轴中空形式，从而改变了 PMMA 纳米纤维的吸附性能。三种类型的 PMMA 纳米纤维对亚甲基蓝 (MB) 和亮绿 (BG) 染料的吸附研究表明，所有 PMMA 纳米纤维都表现出一定的吸附量。吸附了 MB 和 BG 的纤维样品进行了各种吸附等温线，通过满足各种等温线，主要是 Freundlich 和 Elovich 吸附等温线，证实了纤维样品的多层吸附特性。对吸附了 MB 和 BG 染料的纯 PMMA 纳米纤维和结构改性 PMMA 纳米纤维的动力学研究证明，颗粒内扩散模型适用于这些纤维样品。在这里，还表明通过利用静电纺丝的可能性进行结构改性可以进一步提高静电纺合成纤维的吸附性能。对吸附了 MB 和 BG 染料的纯 PMMA 纳米纤维和结构改性 PMMA 纳米纤维的动力学研究证明，颗粒内扩散模型适用于这些纤维样品。在这里，还表明通过利用静电纺丝的可能性进行结构改性可以进一步提高静电纺合成纤维的吸附性能。对吸附了 MB 和 BG 染料的纯 PMMA 纳米纤维和结构改性 PMMA 纳米纤维的动力学研究证明，颗粒内扩散模型适用于这些纤维样品。在这里，还表明通过利用静电纺丝的可能性进行结构改性可以进一步提高静电纺合成纤维的吸附性能。