CdZnMS photocatalyst added with cation for water decomposition and preparation there for and method for producing hydrogen by use of the same

摘要

The present invention relates to a CdZnMS-based photocatalyst used to decompose water by a photoreaction, a method for producing the same, and a method for producing hydrogen thereby characterized by having the following general formula (VII).;m (a) / Cd _x Zn _y M _z S ------------------------------------ General formula VII;(In the general formula, m represents a metal doped as an electron acceptor, and at least one selected from Ni, Pt, Ru, or oxides thereof, a represents a weight percentage of m, and has a value of 0.10 to 5.00. V, Al, Cs, Ti, Mn, Fe, Pd, Pt, P, Cu, Ag, Ir, Sb, Pb, Ga, Re is a metal selected from z, z is the atom% of M / (Cd + Zn + M) X and y represent atom% of Cd / (Cd + Zn + M) and atom% of Zn / (Cd + Zn + M), respectively, and represent values of 10.00 to 90.00. Have.);The photocatalyst of the present invention has the advantages of a CdS-based photocatalyst having high catalytic activity in visible light and a ZnS-based catalyst having relatively high activity in ultraviolet light, and thus can use a wide range of light sources. In addition to resolving the limited activity on the ground, the catalyst obtained has a very long life, and the amount of hydrogen generated by water decomposition is significantly increased compared with the conventional method.