Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation

Deepak Pathania, Divya Gupta, Ala'a H. Al-Muhtaseb, Gaurav Sharma, Amit Kumar, Mu Naushad, Tansir Ahamad, Saad M. Alshehri

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

The photocatalytic degradation of methyl orange (MO) and congo red (CR) dyes from aqueous solution have been attempted using chitosan-g-poly(acrylamide)/ZnS (ChPA/ZS) nanocomposite materials. Nanocomposites were successfully prepared in the aqueous solution through microwave radiations. Band gap property of composite was studied using UV–vis spectrophotometer. The ChPA/ZS nanocomposite was characterized by various techniques. The photocatalytic activity of ChPA/ZS was evaluated for methyl orange and congo red dyes degradation in aqueous solution under simulated solar irradiation. The degradation of dyes was recorded higher for ChPA/ZS nanocomposite. After 2 h of irradiation, 75% of congo red dye was degraded and 69% of methyl orange was degraded after 4 h of simulated solar irradiation. ChPA/ZS composite showed a higher rate of dye degradation owing to outstanding adsorbing properties of cross linked polyacrylamide.

Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume329
DOIs
Publication statusPublished - Oct 1 2016

Fingerprint

Poisons
Chitosan
Polyacrylates
Coloring Agents
Dyes
Congo Red
dyes
Irradiation
degradation
Nanocomposites
nanocomposites
Degradation
irradiation
aqueous solutions
composite materials
Spectrophotometers
Composite materials
spectrophotometers
Energy gap
Microwaves

Keywords

  • Chitosan
  • Congo red
  • Methyl orange
  • Photocatalytic
  • X-ray photoelectron spectroscopy
  • Zinc sulphide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation. / Pathania, Deepak; Gupta, Divya; Al-Muhtaseb, Ala'a H.; Sharma, Gaurav; Kumar, Amit; Naushad, Mu; Ahamad, Tansir; Alshehri, Saad M.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 329, 01.10.2016, p. 61-68.

Research output: Contribution to journalArticle

Pathania, Deepak ; Gupta, Divya ; Al-Muhtaseb, Ala'a H. ; Sharma, Gaurav ; Kumar, Amit ; Naushad, Mu ; Ahamad, Tansir ; Alshehri, Saad M. / Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation. In: Journal of Photochemistry and Photobiology A: Chemistry. 2016 ; Vol. 329. pp. 61-68.
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