溶剂溶胀法去除水中砷酸盐对电纺丝纳米纤维中嵌入mof的回收

IF 3.6 4区 环境科学与生态学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Qi Guo, Yuan Li, Xiaoyan Wei, Yi-Wen Shen, Xuelei Duan, Kai-Qiang He, Ke-gang Zhang, Chunmei Yuan
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引用次数: 0

摘要

电纺纤维包覆纳米粒子不能充分发挥其固有性能。因此,开发一种提高复合纤维内在性能的方法是至关重要的。本文采用静电纺丝法制备了具有良好理化性能的UiO-66/PAN复合纳米纤维膜,并开发了溶胀法来改善其性能。硝基苯和吡啶溶剂溶胀后对砷酸盐的吸附性能分别提高19.9%和49%。肿胀过程没有改变纤维的形态和结构。以吡啶溶剂为溶胀剂,在1 h内使纳米纤维膜的吸附性能提高约45%。剩余溶液中没有检测到浸出的Zr,表明复合膜在过程中是稳定的。本研究为电纺丝纳米纤维膜的功能提升提供了新的策略,有助于纳米复合材料在环境友好型水修复中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reviving of embedded MOFs in electrospun nanofibers by solvent swelling for arsenate removal in water
ABSTRACT Nanoparticles coated with electrospun fibers cannot fully exert their inherent properties. Therefore, it is critical to develop a method to enhance the intrinsic performances of the composite fibers. In this work, UiO-66/PAN composite nanofiber membranes with good physicochemical properties were prepared by electrospinning, and a swelling method was developed to improve its performances. The adsorption performance for arsenate was improved by 19.9% or 49% after swelling by nitrobenzene or pyridine solvent, respectively. The swelling process did not change the morphologies and structures of the fibers. The pyridine solvent as the swelling agent improved the adsorption performance of the nanofiber membrane by about 45% in 1 hour. There was no detectable leached Zr in the remaining solution, indicating that the composite membrane was stable during the course. This work provides a new strategy for functional promotion of electrospun nanofiber membrane and will be helpful for environmentally friendly applications of nanocomposites in water remediation.
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来源期刊
Environmental Pollutants and Bioavailability
Environmental Pollutants and Bioavailability Chemical Engineering-Chemical Health and Safety
CiteScore
4.30
自引率
3.00%
发文量
47
审稿时长
13 weeks
期刊介绍: Environmental Pollutants & Bioavailability is a peer-reviewed open access forum for insights on the chemical aspects of pollutants in the environment and biota, and their impacts on the uptake of the substances by living organisms. Topics include the occurrence, distribution, transport, transformation, transfer, fate, and effects of environmental pollutants, as well as their impact on living organisms. Substances of interests include heavy metals, persistent organic pollutants, and emerging contaminants, such as engineered nanomaterials, as well as pharmaceuticals and personal-care products as pollutants.
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