|
|||||
|
|
Simultaneous Laser‐Induced Reduction and Nitrogen Doping of Graphene Oxide in Titanium Oxide/Graphene Oxide Composites |
|
| Authors: | Enikö György Angel Pérez del Pino Costantin Logofatu Cristina Cazan Anca Duta |
| Affiliation: | 1. Consejo Superior de Investigaciones Científicas, Instituto de Ciencia de Materiales de Barcelona, (CSIC‐ICMAB), , 08193 Bellaterra, Spain;2. National Institute for Lasers, Plasma and Radiation Physics, , Bucharest, 77125 Romania;3. National Institute for Materials Physics, , Bucharest, 77125 Romania;4. Transilvania University of Brasov, , Brasov, 500036 Romania |
| Abstract: | Titanium oxide/graphene oxide nanocomposite thin films were grown by ultraviolet (UV) matrix‐assisted pulsed laser evaporation (MAPLE) technique in controlled oxygen or nitrogen atmospheres. The effect of graphene oxide addition and laser‐induced reduction as well as nitrogen doping on the wetting behavior and photoactive properties of titanium oxide thin films was investigated. Hydrophobic to hydrophilic conversion of titanium oxide films takes place progressively as the relative amount of graphene oxide in the MAPLE composite target increases. Nitrogen doping leads to further decrease of the static contact angle of the composite films. The photoactive properties of the synthesized materials were investigated through the evolution of contact angle under UV light irradiation. Wetting properties of both TiO2 and TiO2/GO nanocomposite thin films improved upon exposure to UV light. |
| Keywords: | |