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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 2
BKCSDE 30(2)
February 20, 2009

Title	Hydrogen Production from Photo Splitting of Water Using the Ga-incorporated TiO₂s Prepared by a Solvothermal Method and Their Characteristics
Author	Jinho Chae, Juhyun Lee, Jong Hwa Jeong, Misook Kang*
Keywords	Ga-incorporated TiO₂, Photocatalysis, Water splitting, H₂ production
Abstract	This study investigated the production of hydrogen over Ga (1.0, 2.0, and 5.0 mol%)-TiO₂ photocatalysts prepared by a solvothermal method. The absorption band was slightly blue-shifted upon the incorporation of the gallium ions, but the intensity of the photoluminescence (PL) curves of Ga-incorporated TiO₂s was distinguishably smaller, with the smallest case being the 2.0 mol% Ga-TiO₂, which was related to the recombination between the excited electrons and holes. H₂ evolution from photo splitting of water over Ga-incorporated TiO₂ in the liquid system was enhanced, compared to that over pure TiO₂; particularly, the production of 5.6 mL of H₂ gas after 8 h when 1.5 g of the 2.0 mol% Ga-incorporated TiO₂ was used.
Page	302 - 308
Full Text	PDF

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