Design and Applications of Single-Site Photocatalysts Using Nano-Space

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  • ナノ空間を利用するシングルサイト光触媒の設計と応用
  • Award Accounts ナノ空間を利用するシングルサイト光触媒の設計と応用
  • Award Accounts ナノ クウカン オ リヨウ スル シングルサイト ヒカリ ショクバイ ノ セッケイ ト オウヨウ

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<p>Design of single-site photocatalysts (tetrahedral-coordinated metal oxide moiety, metal complexes) in nanoporous materials (zeolites, mesoporous silica, metal-organic frameworks) not only can promote unique photocatalytic reactions but also can be utilized to synthesize functional materials: visible-light sensitive single-site photocatalysts, nano-sized metal catalysts, superhydrophilic and superhydrophobic porous thin films. The unique and fascinating properties of silica-based zeolites, mesoporous silicas and metal-organic frameworks have opened up new possibilities for many chemical and physical processes. Because most of them are transparent to UV-visible light, these porous materials have often been functionalized with elements such as Ti, Cr, V, Mo, and W whose corresponding bulk oxides are known to be suitable photocatalysts. These well-defined active centers have shown to be highly dispersed at the atomic level in a tetrahedral-coordination geometry and have been named as “single-site photocatalysts”. These single-site photocatalysts not only can promote photocatalytic reactions but also can be utilized to synthesize functional materials. The plasmonic nano-metal particles and visible-light sensitive binary oxide photocatalyst can be synthesized on the excited single-site photocatalyst under light irradiation. The transparent mesoporous silica thin film with a single-site photocatalyst generates the super-hydrophilic surface. In this account, our applications of single-site photocatalysts to synthesis of the surface functional materials have been introduced.</p>

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