—Layered perovskite-like oxide K2La2Ti3O10 belonging to Ruddlesden-Popper phases was prepared
by hydrothermal method from commercially available precursors. Various conditions, namely reaction time,
temperature and precursors concentration were varied to prepare well-crystallized single phase product.
Morphology, specific surface area, band gap and photocatalytic activity in reaction of hydrogen evolution
from methanol water solution had been investigated in comparison with oxide prepared by conventional
ceramic method. Hydrothermally prepared oxide has an ultrafine plate-like morphology with 4–5 nm particles thickness and relatively big lateral sizes of about 2–5 μm. Obtained samples have ~10 times higher specific surface area and ~3 times higher photocatalytic activity comparing to the ceramic sample, however using
Pt co-catalysts leads to the lower photocatalytic activity of hydrothermal sample comparing to ceramic one.
Developed approach may be further used for preparation of organic-inorganic hybrids and monolayers based
on H2La2Ti3O10 for further enhancement of photocatalytic activity