Study on Enhancement of Adhesion Force and Surface Conductivity of Graphene Oxide Films using Different Solvents

Authors

  • M. Abdelhamid Shahat PV Unit, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt.
  • Ahmed Ghitas PV Unit, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt.
  • F. M. El-Hossary Physics Department, Faculty of Science, Sohag University, Sohag, Egypt.
  • A. M. Abd El-Rahman Physics Department, Faculty of Science, Sohag University, Sohag, Egypt and King Abdul Aziz University, Jeddah, KSA.
  • Mohammed H. Fawey Physics Department, Faculty of Science, Sohag University, Sohag, Egypt.

DOI:

https://doi.org/10.9734/bpi/rtcams/v1/10890D

Keywords:

Graphene oxide, go thin films, contact angle, adhesion force, surface roughness, electrical resistivity

Abstract

In this work, the nanotechnology procedure was utilized to improve both the adhesion force and surface properties of graphene oxide (GO) films. GO has been obtained in a powder form by oxidation purified graphite using the modified Hummer’s technique. Different films of GO nanoparticles (NPs) were deposited using several types of solvents distilled water, acetone, ethanol, dimethylformamide (DMF) or ethylene glycol. The examination of structural and optical properties of GO films was studied by XRD and UV–vis absorption spectroscopy. Moreover, electrical properties, surface roughness, contact angle, adhesion force, wetting energy and spreading coefficient were investigated. It was observed that the properties of the prepared films are influenced by the solvent type. The electrical resistivity of films is highly dependent on the solvent type which exhibited the lowest value with distilled water. Furthermore, GO film synthesized with distilled water has the best values of adhesion force and average surface roughness (Ra) 143.4 mN/m and ~ 7.83 µm, respectively. These results are mostly attributed to hydrophilic cites and GO NPs agglomeration in the surface of films and the effects of their size leading to an expansion in the surface roughness.

Published

2021-07-07

How to Cite

M. Abdelhamid Shahat, Ahmed Ghitas, F. M. El-Hossary, A. M. Abd El-Rahman, & Mohammed H. Fawey. (2021). Study on Enhancement of Adhesion Force and Surface Conductivity of Graphene Oxide Films using Different Solvents. Recent Trends in Chemical and Material Sciences Vol. 1, 49–62. https://doi.org/10.9734/bpi/rtcams/v1/10890D

Issue

Recent Trends in Chemical and Material Sciences Vol. 1

Section

Chapters