Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe<sub>3</sub>O<sub>4</sub>-coated perlite from the liquid phase

Ismail M. Ahmed; Mostafa M. Hamed; Sayed S. Metwally

doi:10.1016/j.cjche.2019.12.027

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Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe₃O₄-coated perlite from the liquid phase

Separation Science and Engineering | Updated：2026-01-06

- Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe₃O₄-coated perlite from the liquid phase
- Chinese Journal of Chemical Engineering Issue 6, Pages: 1582-1590(2020)
- Affiliations：
  
  1. Chemistry Department, College of Science, Jouf University, Skaka, Saudi Arabia
  2. Hot Laboratories and Waste Management Center, Atomic Energy Authority,Cairo,Egypt,13759
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.12.027
  CLC：
- Published：2020
- Accepted：
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Ismail M. Ahmed, Mostafa M. Hamed, Sayed S. Metwally. Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe₃O₄-coated perlite from the liquid phase[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1582-1590. DOI: 10.1016/j.cjche.2019.12.027.
DOI：

Ismail M. Ahmed, Mostafa M. Hamed, Sayed S. Metwally. Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe₃O₄-coated perlite from the liquid phase[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1582-1590. DOI: 10.1016/j.cjche.2019.12.027. DOI：

摘要

Abstract

Modification of perlite using nano-magnetic iron oxide was implemented to produce nano-magneticFe

-coated perlite composite (Fe

/Perlite). The prepared composite was characterized using Scanning Electron Microscopy

Fourier-Transform Infrared spectroscopy and Powder X-ray Fluorescence. The potentiality of both perlite and Fe

/Perlite composite to eliminate Cr(VI) from the environmentally relevant water was investigated. The influence of main factors which could affect the adsorption was studied including; pH of medium

shaking time and Cr(VI) ions concentration. The experimental outcome demonstrated that the modification of perlite by nano-magnetic Fe

showed a significantly enhanced Cr(VI) removal efficiency relative to that of unmodified perlite. From the kinetic studies

the experimental data fitted well with the pseudo-second-order model. Moreover

it proposes that Langmuir isotherm is more adequate than the Freundlich isotherm for both perlite and modified perlite. The results recommended that Fe

/Perlite composite had a grea

t potential as an economic and efficient adsorbent of Cr(VI) from contaminated water

which has huge application potential.

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Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe3O4-coated perlite from the liquid phase

DOI：10.1016/j.cjche.2019.12.027

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Abstract

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Experimental and mathematical modeling of Cr(VI) removal using nano-magnetic Fe₃O₄-coated perlite from the liquid phase