One-pot hydrothermal synthesis and characterization of FeS2 (pyrite)/graphene nanocomposite

A. Moradi Golsheikh, N. M. Huang, H. N. Lim, Chin Hua Chia, I. Harrison, M. R. Muhamad

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

This work reports on the investigation of temperature, reaction time, pH, concentration of graphene oxide (GO) and the effect of gelatin on the synthesis of pyrite structured FeS2 nanoparticles assembled on graphene nanosheets using a facile 'one-pot' hydrothermal method. The results of X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy and electron microscopy confirmed the simultaneous formation of pyrite structured FeS2 and the reduction of GO, yielding a nanocomposite of the materials, through the hydrothermal process. The systematic investigation shows that the nanocomposite, comprising a uniform distribution of nanoparticles on the surface of the graphene sheets, is easily synthesized, providing that certain reaction criteria are achieved. The condition warrants that the reaction is carried out in the presence of gelatin with a concentration of 1.5wt.%/v in a pH of 11 at 200°C for 24h. Photocurrent response of the samples showed that the nanocomposite with the GO concentration of 1mg/mL produced the highest photocurrent value of about 1.01μA, which is about 2.6 times higher than that obtained by the pure FeS2.

Original languageEnglish
Pages (from-to)276-284
Number of pages9
JournalChemical Engineering Journal
Volume218
DOIs
Publication statusPublished - 5 Feb 2013

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Graphite
Pyrites
Hydrothermal synthesis
Graphene
pyrite
Nanocomposites
oxide
Oxides
Gelatin
Photocurrents
Raman spectroscopy
electron microscopy
FTIR spectroscopy
Nanoparticles
X-ray diffraction
Nanosheets
Electron microscopy
Fourier transform infrared spectroscopy
X ray diffraction
temperature

Keywords

  • Gelatin
  • Graphene
  • Hydrothermal
  • Nanocomposite
  • Pyrite

ASJC Scopus subject areas

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

Cite this

One-pot hydrothermal synthesis and characterization of FeS2 (pyrite)/graphene nanocomposite. / Golsheikh, A. Moradi; Huang, N. M.; Lim, H. N.; Chia, Chin Hua; Harrison, I.; Muhamad, M. R.

In: Chemical Engineering Journal, Vol. 218, 05.02.2013, p. 276-284.

Research output: Contribution to journalArticle

Golsheikh, A. Moradi ; Huang, N. M. ; Lim, H. N. ; Chia, Chin Hua ; Harrison, I. ; Muhamad, M. R. / One-pot hydrothermal synthesis and characterization of FeS2 (pyrite)/graphene nanocomposite. In: Chemical Engineering Journal. 2013 ; Vol. 218. pp. 276-284.
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