Adsorption performance of Cd(II), Cr(III), Cu(II), Ni(II), Pb(II) and Zn(II) by aminated solution-blown polyacrylonitrile micro/nanofibers

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Huiqing LouZengbin Chen

Abstract

In this work, we prepared amidoxime-functionalized polyacrylonitrile (APAN) micro/nanofibers by modifying solution-blown PAN fibers with hydroxylamine hydrochloride, and investigated the adsorption performance of the APAN fibers for Cd(II), Cr(III), Cu(II), Ni(II), Pb(II) and Zn(II) from aqueous solutions. Batch experiments and quantitative analysis were conducted considering initial pH and contact time as controlling parameters. The equilibrium data were better explained by the Langmuir model with maximum adsorption capacities of 185, 204, 105, 104, 345 and 91 mg/g for Cd(II), Cr(III), Cu(II), Ni(II), Pb(II) and Zn(II), respectively. The adsorption kinetics were found to follow the pseudo-second-order kinetic model. The calculated thermodynamic parameters demonstrated that the adsorption of metal ions onto APAN fibers is feasible, spontaneous and endothermic. The five adsorption-desorption cycle experiments showed that APAN micro/nanofiber adsorbent exhibits good reusability, and has a potential application for the removal of heavy metals from wastewater.

References

Feb 8, 2006·Journal of Hazardous Materials·Yuh-Shan Ho
Aug 28, 2007·Journal of Colloid and Interface Science·Vandana SinghRashmi Sanghi
Dec 2, 2010·ACS Applied Materials & Interfaces·Pimolpun Kampalanonwat, Pitt Supaphol
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Jul 3, 2013·International Journal of Biological Macromolecules·Aghdas HeidariHarri Heikkinen
Jan 28, 2014·Bioresource Technology·M A HossainT V Nguyen

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Citations

Dec 18, 2019·Environmental Science and Pollution Research International·Hanghang ZhaoJunzhe Zhao
Mar 22, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Aquib Jawed, Lalit M Pandey
Dec 21, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Uma Maheswari BalasubramanianThirumarimurugan Marimuthu

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