“…It was reported that the photo-stability of multicomponent metal sulfides is much better than that of binary metal sulfides in aqueous solutions [6,12]. The synthesis and characterization of multicomponent metal sulfides for solar energy applications have been reported [13][14][15][16]. Studies have shown that multicomponent semiconductors such as I-III-VI (I¼Cu, Ag; III ¼Al, In, Ga; VI¼S, Se, Te) or II-III-VI (II¼Mg, Hg, Cd, Zn; III ¼Al, In, Ga; VI ¼O, S, Se, Te) materials can be used as photoelectrodes for hydrogen production under solar radiation [6,[14][15][16].…”