Novel Zn(II)-Based Metal–Organic Frameworks@Polyacrylonitrile Fibrous Composites: Fabrication, Characterization, and Selective Anionic Dyes Sorption Properties

IF 2.3 4区工程技术 Q1 MATERIALS SCIENCE, TEXTILES

Fibers and Polymers Pub Date : 2025-07-25 DOI:10.1007/s12221-025-01087-9

Zeinab Ansari-Asl, Leila Hashemi, Reza Sacourbaravi, Mohammad Torkaman

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引用次数: 0

Abstract

The development of effective adsorbents has drawn much attention for the purpose of pollutant removal. MOFs (metal–organic frameworks) are attractive candidates for fabricating highly efficient and recyclable sorbents. In this study, Zn-MOF@PAN composites incorporating PAN (polyacrylonitrile) and TMU-17 or TMU-17-NH₂ were fabricated using an electrospinning technique. Successful preparation was confirmed by Fourier-transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX) mapping that the preparation was successful. The Zn-based MOFs and their fibrous composites were studied for the removal of MO (methyl orange) and CR (Congo red) as anionic dyes from aqueous solutions. The dye sorption process was found to follow the Langmuir isotherm and pseudo-second order kinetics. The TMU-17-NH₂ exhibited the highest sorption capacities, achieving 1264 and 1806 mg g⁻¹ for CR and MO dyes, respectively. Furthermore, the composites demonstrated good reusability up to five successive cycles. Overall, the novel porous Zn-MOF@PAN fibrous composites show significant potential for the removal of anionic dyes from wastewater.

Graphical abstract

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新型Zn（II）基金属-有机Frameworks@Polyacrylonitrile纤维复合材料：制备、表征和选择性阴离子染料吸附性能

高效吸附剂的开发已成为污染物去除研究的热点。mof（金属有机框架）是制造高效可回收吸附剂的有吸引力的候选材料。本研究采用静电纺丝技术制备了PAN（聚丙烯腈）与TMU-17或TMU-17- nh2的Zn-MOF@PAN复合材料。通过傅里叶变换红外（FT-IR）、x射线衍射（XRD）、扫描电镜（SEM）和能量色散x射线能谱（EDX）作图证实制备成功。研究了锌基MOFs及其纤维复合材料对水中阴离子染料MO（甲基橙）和CR（刚果红）的去除效果。染料吸附过程遵循Langmuir等温线和拟二级动力学。TMU-17-NH2对CR和MO染料的吸附量最高，分别达到1264和1806 mg g−1。此外，复合材料表现出良好的可重复使用性长达五个连续循环。总体而言，新型多孔Zn-MOF@PAN纤维复合材料显示出从废水中去除阴离子染料的巨大潜力。图形抽象

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来源期刊

Fibers and Polymers 工程技术-材料科学：纺织

CiteScore

3.90

自引率

8.00%

发文量

267

审稿时长

3.9 months

期刊介绍： -Chemistry of Fiber Materials, Polymer Reactions and Synthesis- Physical Properties of Fibers, Polymer Blends and Composites- Fiber Spinning and Textile Processing, Polymer Physics, Morphology- Colorants and Dyeing, Polymer Analysis and Characterization- Chemical Aftertreatment of Textiles, Polymer Processing and Rheology- Textile and Apparel Science, Functional Polymers