Abstract
Photocatalytic degradation of methylene blue by graphene decorated titanium dioxide (TiO2) powders heated at different temperatures was analyzed. The powders were prepared by mixing TiO2 with graphene prepared by the modified Hummers method. A thermal treatment was applied to mixed and pure TiO2 powders with the aim of analyze their structural dependence on temperature, and consistently their photocatalytic degradation effect on methylene blue solutions exposed to UV and visible radiation. Structural characterization of the powders was carried out by x-ray diffraction and Raman spectroscopy. When irradiated with UV, the mixed powders showed as high as 87% photocatalytic degradation, while the pure TiO2 reached values of 59%. For visible radiation, as it is expected, the pure TiO2 showed no activity, while the mixture presented degradation of 40%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
