Ni2+ doped InVO4 nanocrystals: One-pot microwave-assisted synthesis and enhanced photocatalytic O2 production activity under visible-light

In this letter, Ni 2+ doped InVO 4 nanocrystals were successfully synthesized by a simple one-pot microwave-assisted method. The energy bandgap of obtained samples can be precisely controlled by varying the Ni 2+ doping amount. The O 2 production rate of obtained Ni–InVO 4 nanocrystals is higher than that of pure InVO 4 nanocrystals under visible-light, which can be ascribed to the narrowed band gaps. The corresponding 1% doped sample N1 has the highest O 2 production rate (394   μmol/h) in all samples, which is 66% higher than the undoped sample N0.