Ni(OH)2 loaded on TaON for enhancing photocatalytic water splitting activity under visible light irradiation

- Noble-metal-free cocatalyst Ni(OH)2 was loaded on TaON by a precipitation method.
- Ni(OH)2/TaON shows the higher photocatalytic H2 evolution than Pt/TaON.
- Ni(OH)2 on TaON improves the separation of electrons and holes generated by TaON.