Effect of Doping a Cadmium Sulfide–Zinc Sulfide Solid Solution with Copper Ions on Its Physicochemical Properties and Catalytic Activity in Hydrogen Recovery from Aqueous Solutions under the Action of Visible Radiation

摘要

Cu_yCd_(0.3)Zn_(0.7)S_(1 + y) photocatalysts intended for hydrogen recovery from aqueous solution under the action of visible radiation have been synthesized and characterized. The effect of the pH of the aqueous solution of Na_2S–Na_2SO_3 on the rate of the photocatalytic reaction has been investigated. The highest activity is shown by the sample containing 1 mol % copper. With this photocatalyst, the quantum efficiency of the reaction under optimum conditions is 23.5%.