Ultrafine nitrogen doped TiO2 nanoparticles: excellent performance for water splitting
This paper reports the facile synthesis, characterization and solar-light driven photocatalytic water-splitting of ultrafine nitrogen-doped TiO2 photocatalyst (N-TiO2). The N-TiO2 nanoparticles were fabricated via a PVP-assisted solvothermal method and characterized in terms of their structure, morphological, optical and photocatalytic water-splitting properties. The dual function of PVP acted as both nitrogen source and stabilizer showed potential usage in the synthesis process of solar-light driven semiconductors. The excellent performance in water-splitting was attributed to the ultrafine particle size, hydrophilic groups on the surface and the successful doping of nitrogen.