[G] Ultrafine-Grained Materials

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[130] Photocatalytic activity of ZrO2 processed by HPT

*WANG Qing¹, Edalati Kaveh¹, Koganemaru Yuta¹, Nakamura Shohei¹, Watanabe Motonori¹, Ishihara Tatsumi¹, Horita Zenji² (1. Kyushu Univ.、2. Kyushu Inst. of Technology)

Keywords:

High-pressure torsion,Black zirconia,Photocatalysis,Water splitting

HPT-processed ZrO2 shows phase transformation, formation of oxygen vacancies, black color, smaller band gap and improved photocatalytic activity in comparison to unprocessed material.