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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Simultaneous hydrogen production and decomposition of H2S dissolved in alkaline water over CdS-TiO2 composite photocatalysts under visible light irradiation

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Title
Simultaneous hydrogen production and decomposition of H2S dissolved in alkaline water over CdS-TiO2 composite photocatalysts under visible light irradiation
Other Titles
Simultaneous hydrogen production and decomposition of H2S dissolved in alkaline water over CdS-TiO2 composite photocatalysts under visible light irradiation
Author
Jang, Jum SukKim, Hyun GyuBorse, Pramod H.Lee, Jae Sung
Keywords
photocatalyst; CdS-TiO2; visible light; hydrogen sulfide; hydrogen production; isotope experiment
Issue Date
2007-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.32, no.18, pp.4786 - 4791
Abstract
A process of simultaneous hydrogen production and H2S removal has been investigated over a highly active composite photocatalyst made of bulk CdS decorated with nanoparticles of TiO2, i.e. CdS(bulk)/TiO2. The photocatalytic activity was evaluated for hydrogen production from aqueous electrolyte solution containing H2S dissolved in water or alkaline solution under visible light irradiation. The rate of hydrogen production from the H2S-containing alkaline solution was similar to the rate obtained from photocatalytic hydrogen production from water containing sacrificial reagents (Na2S + Na2SO3) in the similar concentration. The isotope experiment was carried out with D2O instead of H2O to investigate the source of hydrogen from photocatalytic decomposition of H2S dissolved in H2O or alkali solution under visible light. Hydrogen originated from both H2S and H2O when the reaction solution contained H2S absorbed in alkaline water. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved
URI
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DOI
10.1016/j.ijhydene.2007.06.026
ISSN
0360-3199
Appears in Collections:
ECHE_Journal Papers
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