2026.2.20, the defense of B4 students was held. Mitsuki and Teppei made presentations. Mitsuki "Noble-Metal-Free Photocatalytic System for Green Hydrogen Generation". Teppei "Developing metal-ion-doped SrTiO3 for Z-scheme water splitting under visible light". Congratulations on their wonderful presentations!

This is a review paper about perovskite oxides doped with transient metal ions for photocatalytic water splitting under visible light irradiation. 3 runs of revision, and 9 reviewers in totally...I cannot believe we survive. "Transition-metal-Doped Perovskite Oxide Materials: A Key Pathway for Photocatalytic Water Splitting Under Visible-light Irradiation", ACS Catalysis, DOI: 10.1021/acscatal.5c05792.

The local mass transfer on particulate photocatalyst has been carefully tailored for promoting H2O2 generation. A solar energy conversion efficiency of > 1% was achieved, along with scalable demonstration. Three runs of revision, and ~100 pages of response letter. This has been a formidable way! "Nanoscale reduction-site-selective oxygen regulation for promoting hydrogen peroxide production", Nature Communications, 2025, https://www.nature.com/articles/s41467-025-66977-1