Hydrothermal synthesis of size- and shape-controlled CaTiO3fine particles and their photocatalytic activity

• DOI: 10.1039/c4ce00376d
• Publication Date: 2014-03-31T13:06:37Z
• Authors: Takeshi Kimijima; Kiyoshi Kanie; Masafumi Nakaya; Atsushi Muramatsu
• Keywords: Triethanolamine; Calcium titanate; Morphology; Particle (ecology); Hydrothermal Synthesis

Calcium titanate fine particles controlled precisely in size and morphology were synthesized by an optimized hydrothermal method. Their photocatalytic activity was evaluated as the effect of particle morphology, that is, exposed surface. The successfully with aging temperature alternative use Ti-sources, such a TiO2 dispersion titanium–triethanolamine complex. CaTiO3 measured evolution amount H2 from methanolic aqueous solution decomposition acetic acid water. As result, rod-like showed highest for evolution. On other hand, cubic-shaped exhibited higher acid. Judging electron diffraction images, both cubic bound {110} {001} facets, but rate faces much more than ones. proper selection shape, outer surface is one key factors activity.