Stoichiometric Decomposition of Pure Water over Pt-Loaded Ti/B Binary Oxide under UV-Irradiation

作者：Sang-Chul Moon, Hiroaki Mametsuka, Eiji Suzuki, Masakazu Anpo · 发表于：Chemistry Letters · 年份：1998 · DOI：10.1246/cl.1998.117 · 被引用次数：29 · 研究领域：Advanced Photocatalysis Techniques、TiO2 Photocatalysis and Solar Cells、Nanomaterials for catalytic reactions

Abstract A titanium-boron binary oxide has been prepared by the sol-gel method and used as a photocatalyst for the decomposition of water. The structure of titanium oxide species in the Ti/B binary oxide was amorphous before and crystal after calcination in O2, while the boron oxide species retained its amorphous state. Pt-loaded Ti/B photocatalysts were found to decompose water stoichiometrically in aqueous suspension systems. Their photocatalytic activities decreased markedly with increase in the calcination temperature, indicating that the photocatalytic activity of the Ti/B binary oxide was strongly dependent on the crystal phase of the titanium oxide.