Visible-photo catalytic performance and screening of sulfide-loaded g-C3N4 composites in an aqueous reaction

Decorated graphite-like carbon nitride (g-C3N4) exhibits high photo-catalytic activity and is a central research area in the field of energy shortage. In this reported study, g-C3N4 was used as a precursor from which six kinds of metal sulfides (Ce, Zn, Ni, Cu, Bi, In) were produced with varying atomic ratios. This library of thousands of catalysts was applied (MySx/g-C3N4) to a semiconductor chip using ink-jet printing and the active catalysts were selected employing high throughput screening. Using visible blue light, the high throughput technique revealed four very active catalysts (Ce0.06Ni0.19Bi0.08Zn0.04Cu0.13In0.50)S/g-C3N4, (Ce0.03Ni0.52Bi0.38Zn0.01Cu0.04In0.03)S/g-C3N4, (Ce0.19Ni0.10Bi0.08Zn0.11Cu0.22In0.28) S/g-C3N4, (Ce0.21Ni0.10Bi0.08Zn0.11Cu0.22In0.28)S/g-C3N4 and one catalyst with low catalytic activity (Ce0.05Ni0.08Bi0.17Zn0.33Cu0.24In0.12)S/g-C3N4.