Fabrication of CdS nanowires decorated with TiO2 nanoparticles for photocatalytic hydrogen production under visible light irradiation

A CdS/TiO2 composite photocatalyst consisting of one-dimensional CdS nanowire (NW) with a high crystallinity decorated with nanosized TiO2 particles (NP) was fabricated by solvothermal method and sol–gel synthesis. The new configuration photocatalyst exhibited higher rate of hydrogen production than that of single CdS NW under visible light irradiation (λ ≥ 420 nm) from water containing sulfide and sulfite ions as hole scavengers. Physicochemical properties of CdS NW/TiO2 NP composite photocatalysts were investigated together with the effect of the mole ratio of TiO2 and CdS for photocatalytic hydrogen production from water under visible light irradiation.