Abstract
We report the preparation of black TiO2 nanoparticles by UV irradiation of monodispersed TiO2-B nanoparticles with an average size of 5.0nm. After heating, the light-induced electron doping (Ti3+) TiO2-B nanoparticles in argon, air-stable black TiO2-B nanoparticles were obtained by heating at 340°C and further transformed to black anatase TiO2 by heating at 360°C. A characteristic single electron signal of electron paramagnetic resonance indicates oxygen vacancies with trapped electrons in black TiO2-B and black anatase TiO2. HRTEM images demonstrate that the black TiO2 samples have TiO2/TiO2−x core-shell heterostructures. Both of the black TiO2-B and black anatase TiO2 show room temperature superparamagnetic behavior and efficient photocatalysis under visible light.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
