Fabrication, Characterization and Photocatalytic Application of GO-TiO2

ISBN-13: 9783639768602 / Angielski / Miękka / 2015 / 80 str.

Satyannarayana Bassa

Opis

Titanium dioxide-Graphene oxide (TiO2-GO) composites with different concentrations of GO to TiO2 were synthesized using a colloidal blending process and evaluated for their heterogeneous photo catalytic degradation of methylene blue for removal of pollutants .Both SEM and FTIR demonstrated the presence of a carbon component in the as-prepared TiO2-GO composites. Unlike unmodified TiO2, the TiO2-GO composites showed a light-absorbance shift into the longer wavelength regions, indicating "Band-gap narrowing". A simple method of depositing titanium dioxide (TiO2) Nano particles onto Graphene oxide (GO) as a catalytic support was devised for photo catalytic degradation methylene blue(MB) .The resultant GO-supported TiO2 (GO-TiO2) samples was characterized by scanning electron microscope(SEM),X-Ray Diffraction (XRD) , Fourier transform infrared spectroscopy(FTIR) and ultra violet visible near infrared spectrophotometer (UV-VIS-NIRSPECTROPHOTOMETER) measurements revealing that the anatase TiO2Nano particles had effectively anchored to the GO surface. In photo degradation of MB, GO-TiO2 composites exhibited remarkably enhanced photo catalytic efficiency.

O autorze

Bassa Satyannarayana working as Senior Research fellow (CSIR) in the Department of Chemical Engineering, AU, College of Engineering (A), Andhra University, Visakhapatnam. He is teaching to Applied Chemistry and BTech students and published few papers in high impact factor journals. He also dedicated to put more effort on research.