Photocatalytic production of hydrogen in systems based on CdxZn1–xS/Ni0 nanostructures

A relation was established between the composition of Cd x Zn 1-x S nanoparticles and their ability to accumulate excess negative charge during irradiation. The rate of expenditure of the accumulated charge depends on the composition of the nanoparticles and is determined by their electric capacitance. A correlation was found between the photocatalytic activity of the Cd x Zn 1-x S nanoparticles in the release of hydrogen from solutions of Na 2 SO 3 , their composition, and their capacity for photoinduced accumulation of excess charge. It was shown that Ni 0 nanoparticles photodeposited on the surface of Cd x Zn 1-x S are effective cocatalysts for the release of hydrogen. It was found that Zn II additions in photocatalytic systems based on Cd x Zn 1-x S/Ni 0 nanostructures have a promoting action on the release of hydrogen from water-ethanol mixtures.