Novel Magnetic Chitosan Hydrogel Film, Cross-Linked with Glyoxal as an Efficient Adsorbent for Removal of Toxic Cr(VI) from Water | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

4180592

Reference Type

Journal Article

Title

Novel Magnetic Chitosan Hydrogel Film, Cross-Linked with Glyoxal as an Efficient Adsorbent for Removal of Toxic Cr(VI) from Water

Author(s)

Mirabedini, M; Kassaee, MZ; Poorsadeghi, S

Year

2017

Is Peer Reviewed?

Yes

Journal

Arabian Journal for Science and Engineering
ISSN: 1319-8025
EISSN: 0377-9211

Volume

Issue

Page Numbers

115-124

DOI

10.1007/s13369-016-2062-1

Web of Science Id

WOS:000392212900012

Abstract

A novel magnetic chitosan hydrogel film, cross-linked with glyoxal (Fe(3)O(4)NPs/CS/glyoxal), has been synthesized and used as an easily reusable adsorbent for 80-90 % removal of toxic Cr(VI) from water. A pseudo-second-order kinetic (with correlation coefficient R (2) > 0.99) is observed at room temperature. Characterization of the absorbent is carried out by X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. The adsorption isotherm is well fitted in the Langmuir equation at different temperatures [R (2) > 0.99, and 0 < (Langmuir separation factor, R (L)) < 1]. So, our adsorbent, with the novelty of using glyoxal, and the ease of separation may be considered in Cr(VI) wastewater treatment technology.

Keywords

Water treatment; Chromium; Chitosan; Adsorption; Hydrogel; Glyoxal