CATALYST, PREPARATION METHOD THEREOF AND PHOTOCATALYTIC METHOD OF PRODUCING HYDROGEN Russian patent published in 2016 - IPC B01J27/43 B01J23/80 B01J23/755 B01J23/72 C01B3/06 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing a catalyst based on copper and nickel oxides and hydroxides, deposited on solid solution of cadmium and zinc sulphides, used mostly as a photocatalyst for processes of photocatalytic extraction of hydrogen from aqueous solutions of Na₂S/Na₂SO₃ under action of visible radiation. Method of producing composite photocatalyst comprises application of hydroxides of transition metals onto a solid solution of cadmium and zinc sulphides Cd_0.3Zn_0.7S, followed by drying. Disclosed method enables to obtain composite photocatalysts of composition: x%MO/M(OH)₂/Cd_0.3Zn_0.7S, where M=Cu, Ni, x is 0.06-1.0, with high activity.

EFFECT: disclosed is a method of producing a catalyst based on oxides and hydroxides of copper and nickel.

3 cl, 2 dwg, 1 tbl, 6 ex