A facile solution approach to W,N co-doped TiO2 nanobelt thin films with high photocatalytic activity

Abstract

Hydrogen titanate nanobelt thin films were fabricated by oxidizing Ti plates with H₂O₂ solutions containing H₂WO₄ and C₃H₆N₆ at 80 °C. A subsequent calcination achieved W,N co-doped TiO₂ nanobelts, which possessed a band gap of 2.3 eV and high photocatalytic activity under both UV and visible light illumination.