Carbonaceous Titania Composites for Photocatalytic Hydrogen Production

This is summarizes the synthesis, characterization and photocatalytic activity of carbonaceous and TiO2 nanocomposite for efficient hydrogen production. In this, developed various catalysts such as TiO2 doped AC, FCNT-TiO2, TiO2 decorated on MWCNTs, graphitic-carbon-TiO2, Cu/FCNT-TiO2 QDs ternary catalysts through hydrothermal, solvothermal and wet impregnation process. The mentioned catalysts crystallinity, morphology, recombination rate, light absorption strength, composition elements and surface area results investigated by the X-ray diffraction, Transmission Electron Microscopy, Photoluminescence spectra, Ultraviolet-visible Diffused Reflectance Spectra, X-ray Photoelectron Spectroscopy and Fourier Transform Infra-Red Spectroscopy advanced characterization techniques. The synthesized catalysts hydrogen production evolved under natural solar-light, and some catalyst activities under solar simulator. Furthermore, the hydrogen test also done by using seawater with AC-TiO2 catalyst. The hydrogen production was analysed with Gas Chromatograph (Shimadzu GC-2014) equipped thermal conductivity detector (TCD) and molecular sieves/5A° column under a constant flow of nitrogen gas.