Self-assembled gels of Fe-chitosan/montmorillonite nanosheets

Dye degradation by the synergistic effect of adsorption and photo-Fenton reaction

Yunliang Zhao, Shichang Kang, Lei Qin, Wei Wang, Tingting Zhang, Shaoxian Song, Sridhar Komarneni

Research output: Contribution to journalArticle

Abstract

Self-assembled gel of Fe-chitosan/montmorillonite nanosheets (Fe-CS/MMTNS) was prepared for elimination of methylene blue (MB) under visible light in the presence of H2O2. The Fe-CS/MMTNS gel was characterized by FTIR, SEM-EDS, XPS and TG. The Fe-CS/MMTNS gel performed well in the removal of MB through the synergistic effect of adsorption and photo-Fenton reaction. Moreover, this gel worked efficiently under a wide range of pH conditions. This composite gel also showed effective reusability because the adsorption sites of the Fe-CS/MMTNS are continually reactivated through photo-Fenton degradation. Additionally, the Fe-CS/MMTNS gel was found to be stable and the iron ions were hardly leached out because of the complexation between iron and chitosan (CS). The MB degradation occurred by two pathways: a part of MB was directly attacked by reactive radicals and gradually converted into inorganic substances while another part of MB was firstly adsorbed by Fe-CS/MMTNS gel and then degraded by reactive radicals.

Original languageEnglish (US)
Article number122322
JournalChemical Engineering Journal
Volume379
DOIs
StatePublished - Jan 1 2020

Fingerprint

Bentonite
Nanosheets
Chitosan
Clay minerals
montmorillonite
dye
Methylene Blue
Coloring Agents
Gels
Dyes
gel
adsorption
Adsorption
Degradation
degradation
Iron
iron
Photodegradation
Reusability
photodegradation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

@article{68ea0cf483074aa0b7f9cddef843c961,
title = "Self-assembled gels of Fe-chitosan/montmorillonite nanosheets: Dye degradation by the synergistic effect of adsorption and photo-Fenton reaction",
abstract = "Self-assembled gel of Fe-chitosan/montmorillonite nanosheets (Fe-CS/MMTNS) was prepared for elimination of methylene blue (MB) under visible light in the presence of H2O2. The Fe-CS/MMTNS gel was characterized by FTIR, SEM-EDS, XPS and TG. The Fe-CS/MMTNS gel performed well in the removal of MB through the synergistic effect of adsorption and photo-Fenton reaction. Moreover, this gel worked efficiently under a wide range of pH conditions. This composite gel also showed effective reusability because the adsorption sites of the Fe-CS/MMTNS are continually reactivated through photo-Fenton degradation. Additionally, the Fe-CS/MMTNS gel was found to be stable and the iron ions were hardly leached out because of the complexation between iron and chitosan (CS). The MB degradation occurred by two pathways: a part of MB was directly attacked by reactive radicals and gradually converted into inorganic substances while another part of MB was firstly adsorbed by Fe-CS/MMTNS gel and then degraded by reactive radicals.",
author = "Yunliang Zhao and Shichang Kang and Lei Qin and Wei Wang and Tingting Zhang and Shaoxian Song and Sridhar Komarneni",
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language = "English (US)",
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journal = "Chemical Engineering Journal",
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Self-assembled gels of Fe-chitosan/montmorillonite nanosheets : Dye degradation by the synergistic effect of adsorption and photo-Fenton reaction. / Zhao, Yunliang; Kang, Shichang; Qin, Lei; Wang, Wei; Zhang, Tingting; Song, Shaoxian; Komarneni, Sridhar.

In: Chemical Engineering Journal, Vol. 379, 122322, 01.01.2020.

Research output: Contribution to journalArticle

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AU - Qin, Lei

AU - Wang, Wei

AU - Zhang, Tingting

AU - Song, Shaoxian

AU - Komarneni, Sridhar

PY - 2020/1/1

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