期刊
ACS APPLIED NANO MATERIALS
卷 5, 期 1, 页码 1131-1140出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.1c03759
关键词
electrospinning; polyacrylonitrile; nanofiber; organic dyes; adsorption
资金
- National Natural Science Foundation of China [21876119]
- Fundamental Research Funds for the Central Universities [YJ201732]
- Sichuan Science and Technology Program [2020YFG0104]
- open project of the Key Laboratory of Fine Chemical Application Technology of Luzhou [HYJH-2101-A]
This study presents a facile method for preparing adsorption membrane-based aminated ultrathin polyacrylonitrile (UPAN-N) nanofibers to remove synthetic dyes from wastewater effectively. The resulting UPAN-N nanofiber membrane, modified with amino groups, exhibits an ultrahigh adsorption capacity and rapid adsorption rate for organic dyes.
Adsorption is a promising technique for the effective removal of dyes from dyeing wastewater resulting from the paper, textile, and leather industries. Herein, we report a facile strategy for preparing adsorption membrane-based aminated ultrathin polyacrylonitrile (UPAN-N) nanofibers to effectively remove the synthetic dyes from wastewater. The UPAN-N nanofibers were synthesized using a mixed solution electrospinning procedure, followed by triethylenetetramine modification. After the amino modification, the surface of the obtained UPAN-N nanofiber membrane is rich in amino groups, which endows the resulting membrane with an ultrahigh adsorption capacity of more than 1800 mg/g for the organic dye DR23 and a rapid adsorption rate for DR23 solutions with the concentrations ranging from 20 to 100 mg/L. This work not only provides a feasible method for the preparation of high-capacity adsorbents but also offers the possibility of preparing nanofibers by a mixed solution electrospinning procedure.
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