AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS)

Water splitting is a promising process to produce hydrogen from friendly feedstock and solar energy. In this work we have evaluated binary (GO-CdS) and ternary (Pt-GO-CdS) hybrid photocatalysts for hydrogen production assisted by visible light irradiation. Cadmium sulfide and composites with GO were prepared by sonochemical and thermal methods. GO addition took place by different strategies: during the synthesis or by mechanical mixture. A variety of configurations was tested and the best performance in hydrogen production among all materials was the ternary photocatalyst named Pt(GO/CdSTT), w...