Highly efficient mobility, separation and charge transfer in black SnO-TiO structures with co-catalysts: the key step for the photocatalytic hydrogen evolution.

Oxygen vacancies and co-catalysts enhance photocatalytic hydrogen production by improving the charge carrier separation. Herein, the black SnO-TiO structure (BST) was synthesized for the first time by two consecutive methods. First, the sol-gel nucleation method allowed TiO to form on the SnO nanoparticles, creating a strong interaction and direct contact between them.

Ethylenediamine-assisted solvothermal synthesis of ZnS/ZnO photocatalytic heterojunction for high-efficiency hydrogen production.

Organic-inorganic hybrid materials have emerged as a class of novel materials over the last two decades, as they combine functional organic components and inorganic building blocks into unique materials through various chemical or physical interactions. In the present work, the importance of the use of ethylenediamine in sulfided materials applied to photocatalytic processes in the H production is demonstrated. The ZnS/ZnO heterojunction was prepared by the solvothermal synthesis in the presence and absence of ethylenediamine.