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Photocatalysis—A Special Issue on a Unique Hybrid Area of Catalysis
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Hydrogen Production from Semiconductor-based Photocatalysis via Water Splitting

Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Institute of Nuclear Energy Research, Atomic Energy Council, Lungtan 32546, Taiwan
Author to whom correspondence should be addressed.
Catalysts 2012, 2(4), 490-516;
Received: 4 July 2012 / Revised: 30 August 2012 / Accepted: 28 September 2012 / Published: 17 October 2012
(This article belongs to the Special Issue Photocatalysts)
Hydrogen is the ideal fuel for the future because it is clean, energy efficient, and abundant in nature. While various technologies can be used to generate hydrogen, only some of them can be considered environmentally friendly. Recently, solar hydrogen generated via photocatalytic water splitting has attracted tremendous attention and has been extensively studied because of its great potential for low-cost and clean hydrogen production. This paper gives a comprehensive review of the development of photocatalytic water splitting for generating hydrogen, particularly under visible-light irradiation. The topics covered include an introduction of hydrogen production technologies, a review of photocatalytic water splitting over titania and non-titania based photocatalysts, a discussion of the types of photocatalytic water-splitting approaches, and a conclusion for the current challenges and future prospects of photocatalytic water splitting. Based on the literatures reported here, the development of highly stable visible–light-active photocatalytic materials, and the design of efficient, low-cost photoreactor systems are the key for the advancement of solar-hydrogen production via photocatalytic water splitting in the future. View Full-Text
Keywords: solar-hydrogen; photocatalysis; water splitting; renewable energy solar-hydrogen; photocatalysis; water splitting; renewable energy
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Liao, C.-H.; Huang, C.-W.; Wu, J.C.S. Hydrogen Production from Semiconductor-based Photocatalysis via Water Splitting. Catalysts 2012, 2, 490-516.

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