No abstract

Present work mainly focuses on experimental investigation to improvement of hydrogen production by water photoelectrolysis. An experimental facility was designed and constructed for visible light photocatalysis. A series of N-TiO 2 photocatalysts impregnated with platinum on the surface of N-TiO 2 were prepared. Hydrogen production upon irradiating aqueous Pt/N-TiO 2 suspension with visible light was investigated. The shift in excitation wavelength of TiO 2 was 380 nm improved the yield of hydrogen production by N-TiO 2 and Pt/N-TiO 2 . We used a 400 W mercury arc lamp combined with a 400 nm cutoff filter eliminating all the wavelengths under 400 nm. Pt/N-TiO 2 material was characterized with TPR, reflective UV/Visible spectroscopy and TEM. The best hydrogen production rate obtained for this setup for N/Ti = 10, 0.05 wt% Pt/N-TiO 2 , through water splitting was about 772 mmolh -1 g -1 .