Štengl V., Popelková D., Vláčil P., TiO2-Graphene Nanocomposite as High Performance Photocatalysts, Journal of Physical Chemistry C, 115 (51), pp 25209–25218

Abstaract: Nonstoicheiometric TiO₂-Graphene nanocomposite was prepared by thermal hydrolysis of suspension graphene nanosheets and titania peroxo-complex. The characterization of graphene nanosheets was provided by using an atomic force microscope (AFM). The prepared samples were  characterized by Brunauer–Emmett–Teller (BET) surface area and Barrett–Joiner–Halenda porosity (BJH), X-ray Diffraction (XRD), Infrared Spectroscopy (IR), Raman Spectroscopy (RS) and Transmission Electron Microscopy (TEM). UV/VIS diffuse reflectance spectroscopy was employed to estimate band-gap energies. From the titania/graphene samples, a 300 μm thin layer on glass desk 10x15 cm was created. The photocatalytic activity of the prepared layers was assessed from the kinetics of the photocatalytic degradation of butane in the gas phase. With regard to the degree of mineralization of butane  then can be considered as the most active sample (labeled TiPC0100)  containing 0.1g of graphene nano-sheets