Khashij, Maryam and Mohammadi, Parviz and Babei, Mina and Mehralian, Mohammad and Aghamohammadi, Nasrin (2021) Process optimization and modeling of lead removal using maleate/PAN nanocomposite nanofibers: Characterization, kinetics and isotherm studies. Desalination and Water Treatment, 210. pp. 330-339. ISSN 1944-3994, DOI https://doi.org/10.5004/dwt.2021.26537.
Full text not available from this repository.Abstract
This study aims to investigate the efficiency of lead (Pb) adsorption by adsorbent maleate/polyacrylonitrile nanocomposite using immersing the pristine electrospun (PAN) nanofibers. Characterizations such as field emission scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy were applied to investigate the structure of the synthesized maleate nanoparticles. FESEM image indicates the smooth surface of the PAN nanofibers and the maleate nanoparticles coating on the electrospun PAN nanofibers surface. A four-factor central composite design was employed, with six replicas at the central points to optimize the process variables. The maximum Pb removal percentage of 98.5% was achieved at the initial concentration of 25 mg/L, an adsorbent dosage of 1.85 g/L, a pH of 6, and a contact time of 60 min. The adsorption process follows the Langmuir isotherm (R-2 = 0.99) and pseudo-second-order kinetics (R-2 = 0.99). The highest capacity of Pb ions adsorption through maleate/PAN nanocomposite was 349.15 mg/g that makes it a potential adsorbent in wastewater treatment.
| Item Type: | Article |
|---|---|
| Funders: | Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (IR.SSU.SPH.REC.1399.191), Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (8084) |
| Uncontrolled Keywords: | Adsorption; Electrospinning; Lead removal; Maleate nanoparticles; RSM |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Medicine |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 25 Jul 2022 03:53 |
| Last Modified: | 25 Jul 2022 03:53 |
| URI: | http://eprints.um.edu.my/id/eprint/28102 |
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