[G] Catalysts

[50] High-pressure columbite TiO2 as an active photocatalyst: Ab initio calculations and experiments by high-pressure torsion

*Jacqueline　Andrea Hidalgo　Jimenez^1,2, Taner Akbay³, Tatsumi Ishihara^1,4, Kaveh Edalati^1,2 (1. International Institute for Carbon-Neutral Energy Research, Kyushu University, Fukuoka, Japan、2. Department of Automotive Science, Kyushu University, Fukuoka, Japan、3. Materials Science and Nanotechnology Engineering, Yeditepe University, Istanbul, Turkey、4. Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, Japan)

Keywords:Photocatalyst、High-pressure torsion、Titanium Oxide、Columbite phase

TiO2 high-pressure phase columbite has shown good photocatalytic properties after being stabilized by high-pressure torsion. The current research aimed to clarify the mechanisms by DFT calculations.