A visible-light-active CuInSe2:Zn/g-C3N4/TiO2 nanowires for photoelectrocatalytic bactericidal effects

A visible-light-active CuInSe2:Zn/g-C3N4/TiO2 nanowire (NW) photoelectrode was prepared by in situ growth of g-C3N4 on the surface of TiO2 NWs, followed by drop deposition of Zn-doped CuInSe2 quantum dots (CuInSe2:Zn QDs). It has a 2.205 eV band gap and can absorb visible light. The as-prepared ternary hybrid nanocomposite CuInSe2:Zn/g-C3N4/TiO2 NWs shows high photon absorption and photocurrent generation efficiency, as well as a high bactericidal effect on Staphylococcus aureus.