SYNTHESIS, STRUCTURAL AND OPTICAL PROPERTIES OF nO-TiO2-GO NANOCOMPOSITE
Abstract
- Graphene oxide (GO) nanoparticles were synthesized by Hmmmers method and the synthesized graphene oxide was analyzed by X-ray diffraction (XRD), energy dispersive X-ray (EDX), fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy and field emission scanning electron microscopy (FESEM). The XRD pattern reveled a (001) diffraction peak, signifying the successful synthesis of GO. The elemental composition of GO was characterized by EDX analysis. The mass ratio of C/O is 2.26. The results of FT-IR showed that C-O bond, O-H group with water molecules and C=C bond with graphene oxide. UV-Vis spectra of GO exhibited maximum absorption peak at 290 nm. And then, nOTiO2nanocomposite was prepared by simple mechanochemical activation method and the nO-TiO2-GOnanocomposite was prepared by simple mechanical stirring followed by ultra-sonication. X-ray diffraction (XRD) technique was employed to examine the crystal structure and phase analysis of nO-TiO2 and nO-TiO2-GO nanocomposite. The elemental composition of nO-TiO2 and nO-TiO2-GOnanocomposite were characterized by EDX analysis. The optical properties of nO-TiO2 and nO-TiO2-GO nanocomposite were identified by ultraviolet-visible spectroscopy. UV-Vis spectra of nO-TiO2 nanocomposite exhibited maximum absorption peak at 289 nm and 372 nm. For nO-TiO2-GO nanocomposite, the maximum absorption peak are 543 nm and 645 nm. The particles sizes and the surface structure were examined by atomic force microscope (AFM) analysis and field emission scanning electron microscope (FESEM) analysis.
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Year
- 2018
Author
-
Su Su Lwin
Subject
- Physics
Publisher
- Myanmar Academy of Arts and Science (MAAS)