Shell thickness controllable CdS@Ni3S2 core@shell arrays for electrochemical catalytic (EC), photoelectrochemical (PEC) and photocatalytic (PC) water splitting.

No abstract

Dramatic visible light photocatalytic activity was obtained for the degradation of methyl orange using TiO2 photocatalysts modified with polydopamine (PDA) nanospheres.

A novel heterojunction by facet coupling of BiOI onto TiO2 nanobelt arrays (NBAs) as a visible light photocatalyst was achieved through a hydrothermal method.

Because of its large bandgap, TiO 2 can function only under UV light. TiO 2 surface modification with noble metal nanoparticles can extend the light absorption from UV to visible light region and enhance the photocatalytic quantum yield. In this work, TiO 2 nanorods (Cu/TiO 2 ) modified by copper nanoparticles were prepared by a one-step solvothermal method at low cost. The resultant Cu/TiO 2 nanorods show excellent synergistic effect in the oxidation of methylene blue (MB) and the reduction of aqueous Cr(VI) under solar light irradiation. Mechanistic investigation suggests that the Cr(VI) species could effectively scavenge the electrons from MB in the presence of the asprepared photocatalyst, leading to the simultaneous removal of both pollutants. Being economically viable, environmentally sustainable, and highly efficient, the proposed photocatalyst holds promise for technologies involving simultaneous organic degradation and heavy metal removal in wastewater treatment.