Superior photocatalytic hydrogen peroxide production over g-C 3 N 4 with Ni(OH) 2 as an oxidation cocatalyst

A novel Ni(OH) 2 /g-C 3 N 4 composite photocatalyst with Ni(OH) 2 as an oxidation co-catalyst was synthesized. The optimized NiCN-30 achieves the highest H 2 O 2 yield of 1189.8 μM within 1 h (5949.0 μmol g −1 h −1 ).