Photocatalysis Research Division

Go to lab

Design, Fabrication and Application of Functionalized Particles

Professor Bunsho OHTANI Associate Professor Ewa KOWALSKA Assistant Professor Mai TAKASHIMA

We are aiming to design and fabricate functionalized micro-/nano-particles and apply them to chemical reaction systems for efficient use of energy and resources. Recent achievements include (1) development of analytical methods, action spectrum analyses and double-beam photoacoustic spectroscopy for evaluating photocatalyst particles for the purpose of designing a highly active photocatalyst; (2) preparation of highly active titanium (IV) oxide (titania) photocatalyst particles using a newly developed gas-phase reactor (Fig. 1); (3) development of a visible-light responsive gold-loaded titania photocatalyst particles driven by surface plasmon resonance absorption of gold; (4) development of metal oxide particles with micro-macro hierarchical structure through processes such as hydrothermal treatment of substrates (Fig. 2), which show relatively high level of photocatalytic activity under visible-light irradiation.

Fig. 1 Fig. 2