Room temperature in situ chemical synthesis of Fe 3O 4/graphene

P. S. Teo, H. N. Lim, N. M. Huang, Chin Hua Chia, I. Harrison

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

A simple, cost-effective, efficient, and green approach to synthesize iron oxide/graphene (Fe 3O 4/rGO) nanocomposite using in situ deposition of Fe 3O 4 nanoparticles on reduced graphene oxide (rGO) sheets is reported. In the redox reaction, the oxidation state of iron(II) is increased to iron(III) while the graphene oxide (GO) is reduced to rGO. The GO peak is not observed in the X-ray diffraction (XRD) pattern of the nanocomposite, thus providing evidence for the reduction of the GO. The XRD spectra do have peaks that can be attributed to cubic Fe 3O 4. The field emission scanning electron microscopy (FESEM) images show Fe 3O 4 nanoparticles uniformly decorating rGO sheets. At a low concentration of Fe 2, there is a significant increase in the intensity of the FESEM images of the resulting rGO sheets. Elemental mapping using energy dispersive X-ray (EDX) analysis shows that these areas have a significant Fe concentration, but no morphological structure could be identified in the image. When the concentration of Fe 2 is increased, the Fe 3O 4 nanoparticles are formed on the rGO sheets. Separation of the Fe 3O 4/rGO nanocomposite from the solution could be achieved by applying an external magnetic field, thus demonstrating the magnetic properties of the nanocomposite. The Fe 3O 4 particle size, magnetic properties, and dispersibility of the nanocomposite could be altered by adjusting the weight ratio of GO to Fe 2 in the starting material.

Original languageEnglish
Pages (from-to)6411-6416
Number of pages6
JournalCeramics International
Volume38
Issue number8
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Graphite
Graphene
Oxides
Nanocomposites
Temperature
Nanoparticles
Field emission
Magnetic properties
Iron
X ray diffraction
Scanning electron microscopy
Energy dispersive X ray analysis
Redox reactions
Iron oxides
Diffraction patterns
Particle size

Keywords

  • B. Nanocomposite
  • Graphene
  • Iron oxide
  • Magnetite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Room temperature in situ chemical synthesis of Fe 3O 4/graphene. / Teo, P. S.; Lim, H. N.; Huang, N. M.; Chia, Chin Hua; Harrison, I.

In: Ceramics International, Vol. 38, No. 8, 12.2012, p. 6411-6416.

Research output: Contribution to journalArticle

Teo, P. S. ; Lim, H. N. ; Huang, N. M. ; Chia, Chin Hua ; Harrison, I. / Room temperature in situ chemical synthesis of Fe 3O 4/graphene. In: Ceramics International. 2012 ; Vol. 38, No. 8. pp. 6411-6416.
@article{c23572609df44f46872a20e2ea9add16,
title = "Room temperature in situ chemical synthesis of Fe 3O 4/graphene",
abstract = "A simple, cost-effective, efficient, and green approach to synthesize iron oxide/graphene (Fe 3O 4/rGO) nanocomposite using in situ deposition of Fe 3O 4 nanoparticles on reduced graphene oxide (rGO) sheets is reported. In the redox reaction, the oxidation state of iron(II) is increased to iron(III) while the graphene oxide (GO) is reduced to rGO. The GO peak is not observed in the X-ray diffraction (XRD) pattern of the nanocomposite, thus providing evidence for the reduction of the GO. The XRD spectra do have peaks that can be attributed to cubic Fe 3O 4. The field emission scanning electron microscopy (FESEM) images show Fe 3O 4 nanoparticles uniformly decorating rGO sheets. At a low concentration of Fe 2, there is a significant increase in the intensity of the FESEM images of the resulting rGO sheets. Elemental mapping using energy dispersive X-ray (EDX) analysis shows that these areas have a significant Fe concentration, but no morphological structure could be identified in the image. When the concentration of Fe 2 is increased, the Fe 3O 4 nanoparticles are formed on the rGO sheets. Separation of the Fe 3O 4/rGO nanocomposite from the solution could be achieved by applying an external magnetic field, thus demonstrating the magnetic properties of the nanocomposite. The Fe 3O 4 particle size, magnetic properties, and dispersibility of the nanocomposite could be altered by adjusting the weight ratio of GO to Fe 2 in the starting material.",
keywords = "B. Nanocomposite, Graphene, Iron oxide, Magnetite",
author = "Teo, {P. S.} and Lim, {H. N.} and Huang, {N. M.} and Chia, {Chin Hua} and I. Harrison",
year = "2012",
month = "12",
doi = "10.1016/j.ceramint.2012.05.014",
language = "English",
volume = "38",
pages = "6411--6416",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "8",

}

TY - JOUR

T1 - Room temperature in situ chemical synthesis of Fe 3O 4/graphene

AU - Teo, P. S.

AU - Lim, H. N.

AU - Huang, N. M.

AU - Chia, Chin Hua

AU - Harrison, I.

PY - 2012/12

Y1 - 2012/12

N2 - A simple, cost-effective, efficient, and green approach to synthesize iron oxide/graphene (Fe 3O 4/rGO) nanocomposite using in situ deposition of Fe 3O 4 nanoparticles on reduced graphene oxide (rGO) sheets is reported. In the redox reaction, the oxidation state of iron(II) is increased to iron(III) while the graphene oxide (GO) is reduced to rGO. The GO peak is not observed in the X-ray diffraction (XRD) pattern of the nanocomposite, thus providing evidence for the reduction of the GO. The XRD spectra do have peaks that can be attributed to cubic Fe 3O 4. The field emission scanning electron microscopy (FESEM) images show Fe 3O 4 nanoparticles uniformly decorating rGO sheets. At a low concentration of Fe 2, there is a significant increase in the intensity of the FESEM images of the resulting rGO sheets. Elemental mapping using energy dispersive X-ray (EDX) analysis shows that these areas have a significant Fe concentration, but no morphological structure could be identified in the image. When the concentration of Fe 2 is increased, the Fe 3O 4 nanoparticles are formed on the rGO sheets. Separation of the Fe 3O 4/rGO nanocomposite from the solution could be achieved by applying an external magnetic field, thus demonstrating the magnetic properties of the nanocomposite. The Fe 3O 4 particle size, magnetic properties, and dispersibility of the nanocomposite could be altered by adjusting the weight ratio of GO to Fe 2 in the starting material.

AB - A simple, cost-effective, efficient, and green approach to synthesize iron oxide/graphene (Fe 3O 4/rGO) nanocomposite using in situ deposition of Fe 3O 4 nanoparticles on reduced graphene oxide (rGO) sheets is reported. In the redox reaction, the oxidation state of iron(II) is increased to iron(III) while the graphene oxide (GO) is reduced to rGO. The GO peak is not observed in the X-ray diffraction (XRD) pattern of the nanocomposite, thus providing evidence for the reduction of the GO. The XRD spectra do have peaks that can be attributed to cubic Fe 3O 4. The field emission scanning electron microscopy (FESEM) images show Fe 3O 4 nanoparticles uniformly decorating rGO sheets. At a low concentration of Fe 2, there is a significant increase in the intensity of the FESEM images of the resulting rGO sheets. Elemental mapping using energy dispersive X-ray (EDX) analysis shows that these areas have a significant Fe concentration, but no morphological structure could be identified in the image. When the concentration of Fe 2 is increased, the Fe 3O 4 nanoparticles are formed on the rGO sheets. Separation of the Fe 3O 4/rGO nanocomposite from the solution could be achieved by applying an external magnetic field, thus demonstrating the magnetic properties of the nanocomposite. The Fe 3O 4 particle size, magnetic properties, and dispersibility of the nanocomposite could be altered by adjusting the weight ratio of GO to Fe 2 in the starting material.

KW - B. Nanocomposite

KW - Graphene

KW - Iron oxide

KW - Magnetite

UR - http://www.scopus.com/inward/record.url?scp=84865721194&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865721194&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2012.05.014

DO - 10.1016/j.ceramint.2012.05.014

M3 - Article

AN - SCOPUS:84865721194

VL - 38

SP - 6411

EP - 6416

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 8

ER -