Hydrothermal synthesis, characterization and applications of titanium dioxide-graphene nanocomposites (TiO2-G) for removing heavy metal ions of cadmium(II), lead(II) and copper(II)

AuthorsFahimesadat Vajedi, Hossein Dehghani
Conference TitleThe 5 International Biochemistry and Molecular Biology conference
Holding Date of Conference2016
Event PlaceSongkhla
PresentationPOSTER
Conference LevelInternational Conferences

Abstract

In the present study, titanium dioxide (TiO2)-graphene (G) nanocomposites were prepared via a hydrothermal reaction. The mass ratio of TiO2- graphene oxide (GO) in the nanocomposites was optimized and the TiO2-GO (1:1) nanocomposite was chosen as the effective adsorbent of Cu(II), Pb(II), and Cr(III) from aqueous solutions because of the TiO2-GO (1:1) nanocomposite inherited both features of GO and TiO2. The prepared nanocomposites were characterized by Field emission scanning electron microscopy (FESEM), powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, UV-Vis absorption spectra. The adsorption of the heavy metal ions of cadmium (II), lead (II) and copper (II) with nanostructured TiO2-G nanocomposites was scrutinize. Our results indicate that the TiO2-G nanocomposites can be used as a promising sorbent materials for the separation of heavy metal ions from aqueous solutions. The potential applications for this technology were illustrated by the use of TiO2-G nanocomposites-modified glassy carbon electrode in detail. Compared to a conventional glassy carbon electrode when interacting with lead(II) ions in potassium chloride electrolyte.