HNO3-involved one-step low temperature solvothermal synthesis of N-doped TiO2 nanocrystals for efficient photocatalytic reduction of Cr(VI) in water

- N-doped TiO2 nanocrystals are solvothermally synthesized using HNO3 as the N source.
- High specific surface area and remarkable visible light-absorbing ability.
- High photocatalytic activity for the reduction of Cr(VI) in water.
- Catalyst dosage and Cr(VI) concentration affect the efficiency of Cr(VI) reduction.
- Cr(VI) is photocatalytically reduced to Cr(III).