Defect-Tuned Silicon Scaffold Boosts Photocatalytic Hydrogen Production Without Sacrificial Donors

Researchers developed an n-type, scaffolded Si–ZnxMg1-xO photocatalyst that produced hydrogen from water without sacrificial electron donors under 100 W tungsten-lamp irradiation. By tuning the Zn/Mg ratio and associated defect states, the best-performing Si–Zn0.3Mg0.7O composition reached a hydrogen evolution rate of 1,954 µmol h?¹ cm?² and an apparent quantum yield of 36.47% at 600 nm.

• Source: https://www.azom.com/news.aspx?newsID=65916