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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 777-780 |
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Khalilpour Tilami F, Akbarzadeh Pasha M. Synthesis, Characterization and optical property of Graphene-TiO2 hybrid. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :777-780
URL: http://opsi.ir/article-1-2187-en.html
URL: http://opsi.ir/article-1-2187-en.html
1- Department of Solid state physics, Faculty of Basic science, University of Mazandaran, Babolsar
Abstract: (1577 Views)
In this study, grapheme oxide-titanium dioxide (GO-TiO2) hybrid was prepared by sol-gel method via reaction of graphene oxide and tetrabutyl orthotitania in water and ethanol solvents. Graphene oxide (GO) sheets were first synthesized by the modified Hummers method and then three different concentrations of tetrabutyl orthotitania and a mixture of water-ethanol and graphene oxide were used to form TiO2 nanocrystals on the graphene oxide sheets. The characterization of the hybrids was performed using SEM and TEM electron microscopes, X-ray diffraction(XRD), X-ray energy dispersive spectroscopy(EDX) and infrared spectroscopy(FTIR) and the optical properties of the nanostructures were investigated using UV-Vis analysis. Microscopic and spectroscopic studies showed that a hybrid structure was formed at all concentrations studied. Titanium dioxide nanoparticles have anatase crystalline phase. The EDX analysis showed that as the concentration of titanium precursor increased, the deposition of TiO2 on graphene oxide increased. In FTIR analysis, the peak of TiO2 nanoparticles bonded with graphene oxide was observed. The UV-Vis spectra also showed an increase in the absorption wavelength and a decrease in the energy band gap of the hybrid structure compared to titanium dioxide alone.
Keywords: Optical Property, Titanium Dioxide, Graphene Oxide, Graphene Oxide - Titanium Dioxide Hybrid
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