High performance magnetically separable graphene/zinc oxide nanocomposite

S. Vijay Kumar; N. M. Huang; N. Yusoff; H. N. Lim

doi:10.1016/j.matlet.2012.09.089

High performance magnetically separable graphene/zinc oxide nanocomposite

S. Vijay Kumar, N. M. Huang, N. Yusoff, H. N. Lim

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

Magnetically separable graphene-Fe₂O₃/ZnO (G-Fe ₂O₃/ZnO) nanocomposites were prepared by a simple hydrothermal method, using graphene oxide (GO) and Zn(OH)₂ as the precursors of graphene and ZnO, respectively and commercially available iron oxide (Fe₂O₃) as a magnetic material. The nanocomposite materials were characterised by Transmission Electron Microscopy (TEM), Field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), Ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. Under natural sunlight, the nanocomposite exhibited excellent photocatalytic degradation of methylene blue (MB). Photoluminescence spectra proved that the high photocatalytic performance of the nanocomposite resulted from the prevention of electron-hole recombination by the effective transfer of electrons between the semiconductors and the graphene. The nanocomposite maintained its ability to degrade MB efficiently, even after 5 cycles of photocatalysis.

Original language	British English
Pages (from-to)	411-414
Number of pages	4
Journal	Materials Letters
Volume	93
DOIs	https://doi.org/10.1016/j.matlet.2012.09.089
State	Published - 2013

Keywords

Carbon materials
Graphene
Magnetic
Nanocomposites
Photocatalysis

Access to Document

10.1016/j.matlet.2012.09.089

Cite this

@article{14f9734b8c9346599858a2d92afdd4d4,

title = "High performance magnetically separable graphene/zinc oxide nanocomposite",

abstract = "Magnetically separable graphene-Fe2O3/ZnO (G-Fe 2O3/ZnO) nanocomposites were prepared by a simple hydrothermal method, using graphene oxide (GO) and Zn(OH)2 as the precursors of graphene and ZnO, respectively and commercially available iron oxide (Fe2O3) as a magnetic material. The nanocomposite materials were characterised by Transmission Electron Microscopy (TEM), Field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), Ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. Under natural sunlight, the nanocomposite exhibited excellent photocatalytic degradation of methylene blue (MB). Photoluminescence spectra proved that the high photocatalytic performance of the nanocomposite resulted from the prevention of electron-hole recombination by the effective transfer of electrons between the semiconductors and the graphene. The nanocomposite maintained its ability to degrade MB efficiently, even after 5 cycles of photocatalysis.",

keywords = "Carbon materials, Graphene, Magnetic, Nanocomposites, Photocatalysis",

author = "{Vijay Kumar}, S. and Huang, {N. M.} and N. Yusoff and Lim, {H. N.}",

note = "Funding Information: This work was supported financially by the High Impact Research Grant from the University of Malaya ( UM.C/625/1/HIR/030 ), the National Nanotechnology Directorate research Grant ( NND/ND/(2)/TD11-012 ) and the High Impact Research Grant from the Ministry of Higher Education Malaysia ( UM.C/625/1/HIR/MOHE/05 ). ",

year = "2013",

doi = "10.1016/j.matlet.2012.09.089",

language = "British English",

volume = "93",

pages = "411--414",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - High performance magnetically separable graphene/zinc oxide nanocomposite

AU - Vijay Kumar, S.

AU - Huang, N. M.

AU - Yusoff, N.

AU - Lim, H. N.

N1 - Funding Information: This work was supported financially by the High Impact Research Grant from the University of Malaya ( UM.C/625/1/HIR/030 ), the National Nanotechnology Directorate research Grant ( NND/ND/(2)/TD11-012 ) and the High Impact Research Grant from the Ministry of Higher Education Malaysia ( UM.C/625/1/HIR/MOHE/05 ).

PY - 2013

Y1 - 2013

N2 - Magnetically separable graphene-Fe2O3/ZnO (G-Fe 2O3/ZnO) nanocomposites were prepared by a simple hydrothermal method, using graphene oxide (GO) and Zn(OH)2 as the precursors of graphene and ZnO, respectively and commercially available iron oxide (Fe2O3) as a magnetic material. The nanocomposite materials were characterised by Transmission Electron Microscopy (TEM), Field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), Ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. Under natural sunlight, the nanocomposite exhibited excellent photocatalytic degradation of methylene blue (MB). Photoluminescence spectra proved that the high photocatalytic performance of the nanocomposite resulted from the prevention of electron-hole recombination by the effective transfer of electrons between the semiconductors and the graphene. The nanocomposite maintained its ability to degrade MB efficiently, even after 5 cycles of photocatalysis.

AB - Magnetically separable graphene-Fe2O3/ZnO (G-Fe 2O3/ZnO) nanocomposites were prepared by a simple hydrothermal method, using graphene oxide (GO) and Zn(OH)2 as the precursors of graphene and ZnO, respectively and commercially available iron oxide (Fe2O3) as a magnetic material. The nanocomposite materials were characterised by Transmission Electron Microscopy (TEM), Field emission scanning electron microscopy (FESEM), X-ray diffractometry (XRD), Ultraviolet-visible spectroscopy (UV-vis) and Raman spectroscopy. Under natural sunlight, the nanocomposite exhibited excellent photocatalytic degradation of methylene blue (MB). Photoluminescence spectra proved that the high photocatalytic performance of the nanocomposite resulted from the prevention of electron-hole recombination by the effective transfer of electrons between the semiconductors and the graphene. The nanocomposite maintained its ability to degrade MB efficiently, even after 5 cycles of photocatalysis.

KW - Carbon materials

KW - Graphene

KW - Magnetic

KW - Nanocomposites

KW - Photocatalysis

UR - http://www.scopus.com/inward/record.url?scp=84871770142&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2012.09.089

DO - 10.1016/j.matlet.2012.09.089

M3 - Article

AN - SCOPUS:84871770142

SN - 0167-577X

VL - 93

SP - 411

EP - 414

JO - Materials Letters

JF - Materials Letters

ER -

High performance magnetically separable graphene/zinc oxide nanocomposite

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this