| abstract |
(57) [Object] To provide a method for producing hydrogen from a sulfur-containing compound such as hydrogen sulfide, which is contained in a desulfurization process step or natural gas and is abundant as a raw material, by a novel reaction. An aqueous solution of an inorganic sulfur compound ion, for example, an aqueous solution of, for example, sodium sulfide or sodium sulfite is irradiated with ultraviolet rays to reduce water to produce hydrogen. |