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Visible Light Photocatalytic Activity of Pt/N‐TiO 2 towards Enhanced H 2 Production from Water Splitting
Author(s) -
Wu RenJang,
Hsieh YingChieh,
Hung HengChieh,
Ie Chiu,
Chavali Murthy
Publication year - 2014
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201300192
Subject(s) - hydrogen production , photocatalysis , visible spectrum , photoelectrolysis , chemistry , water splitting , platinum , hydrogen , aqueous solution , photochemistry , spectroscopy , analytical chemistry (journal) , optoelectronics , catalysis , materials science , electrolysis , electrode , electrolyte , biochemistry , organic chemistry , chromatography , physics , quantum mechanics
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 μmolh −1 g −1 .