Environmental synthesis of few layers graphene sheets using ultrasonic exfoliation with enhanced electrical and thermal properties

Monir Noroozi, Azmi Zakaria, Shahidan Radiman, Zaidan Abdul Wahab

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this paper, we report how few layers graphene that can be produced in large quantity with low defect ratio from exfoliation of graphite by using a high intensity probe sonication in water containing liquid hand soap and PVP. It was founded that the graphene powder obtained by this simple exfoliation method after the heat treatment had an excellent exfoliation into a single or layered graphene sheets. The UV-visible spectroscopy, FESEM, TEM, X-ray powder diffraction and Raman spectroscopy was used to analyse the graphene product. The thermal diffusivity of the samples was analysed using a highly accurate thermalwave cavity photothermal technique. The data obtained showed excellent enhancement in the thermal diffusivity of the graphene dispersion. This well-dispersed graphene was then used to fabricate an electrically conductive polymer-graphene film composite. The results demonstrated that this low cost and environmental friendly technique allowed to the production of high quality layered graphene sheets, improved the thermal and electrical properties. This may find use in the wide range of applications based on graphene.

Original languageEnglish
Article numbere0152699
JournalPLoS One
Volume11
Issue number4
DOIs
Publication statusPublished - 1 Apr 2016

Fingerprint

electrical properties
Graphite
thermal properties
Ultrasonics
ultrasonics
Electric properties
Thermodynamic properties
Hot Temperature
synthesis
thermal diffusivity
Thermal diffusivity
powders
graphene
Powder Diffraction
ultraviolet-visible spectroscopy
Soaps
Raman spectroscopy
Sonication
Soaps (detergents)
Raman Spectrum Analysis

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Environmental synthesis of few layers graphene sheets using ultrasonic exfoliation with enhanced electrical and thermal properties. / Noroozi, Monir; Zakaria, Azmi; Radiman, Shahidan; Wahab, Zaidan Abdul.

In: PLoS One, Vol. 11, No. 4, e0152699, 01.04.2016.

Research output: Contribution to journalArticle

Noroozi, Monir ; Zakaria, Azmi ; Radiman, Shahidan ; Wahab, Zaidan Abdul. / Environmental synthesis of few layers graphene sheets using ultrasonic exfoliation with enhanced electrical and thermal properties. In: PLoS One. 2016 ; Vol. 11, No. 4.
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