Imaging Science and Photochemistry ›› 2008, Vol. 26 ›› Issue (2): 131-137.DOI: 10.7517/j.issn.1674-0475.2008.02.131

Previous Articles     Next Articles

Decomposition of Hydrogen Sulfide to Produce Hydrogen under Ultraviolet Light

XU Hong, BAI Xue-feng   

  1. Heilongjiang Institute of Petrochemistry, Harbin 150040, Heilongjiang, P.R.China
  • Received:2007-06-22 Revised:2007-10-19 Online:2008-03-23 Published:2008-03-23

Abstract: The direct photodecomposition of hydrogen sulfide to produce hydrogen under ultraviolet light is studied in the sodium solution illuminated by the 10 W low-pressure mercury-lamp (λ= 253.7 nm) as illuminant. The effects of the reaction conditions on the hydrogen production from hydrogen sulfide, such as the form of sulfide ions, the concentration of sodium solution, the pH value of the reaction solution and the rate of hydrogen sulfide are investigated. The results show that direct decomposition of hydrogen sulfide under ultraviolet light could occur without catalyst. The highest hydrogen production rate is 3.0 mL/W·h when the sodium solution is 0.6 mol/L and the successive hydrogen sulfide rate is 25 mL/h.

Key words: hydrogen sulfide, hydrogen production, decomposition, ultraviolet light

CLC Number: