Selected Papers : Synthesis and Characterization of Ir and Rh Complexes Supported on Layered K₄Nb₆O₁₇ as a Heterogeneous Photocatalyst for Visible-Light-Induced Hydrogen Evolution
この論文をさがす
抄録
<jats:title>Abstract</jats:title> <jats:p>Immobilization of photosensitizer cyclometalated iridium(III) ([Ir(ppy)2(bpy)]+) and proton reduction catalyst tris(2,2′-bipyridyl)rhodium(III) ([Rh(bpy)3]3+) complexes onto layered niobate (K4Nb6O17) has been achieved with the aim of developing a photocatalyst for H2 production under visible light irradiation. Ir LIII-edge and Rh K-edge X-ray absorption fine structure measurements suggest that the Ir and Rh complexes are easily immobilized with little effect on the surrounding ligand structure. The photoluminescence emission of the immobilized Ir complex near 550 nm decreases with increasing amounts of adjacent Rh complex, suggesting direct electron transfer from Ir to Rh. The Ir–Rh/K4Nb6O17 acts as a heterogeneous photocatalyst enabling both visible light sensitization and H2 production from an aqueous solution without an electron relay reagent. Leaching and agglomeration of the active metal complexes are not observed after catalytic reactions, and the recovered photocatalyst can be repeatedly recycled without deterioration in its catalytic activity. Moreover, use of exfoliated K4Nb6O17 nanosheets is proven to significantly enhance photocatalytic activity.</jats:p>
収録刊行物
-
- Bulletin of the Chemical Society of Japan
-
Bulletin of the Chemical Society of Japan 87 (8), 874-881, 2014-08
Tokyo : Chemical Society of Japan
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1523106604878166656
-
- NII論文ID
- 130004677556
-
- NII書誌ID
- AA00580132
-
- ISSN
- 00092673
- 13480634
-
- NDL書誌ID
- 025633273
-
- 本文言語コード
- en
-
- NDL 雑誌分類
-
- ZP1(科学技術--化学・化学工業)
-
- データソース種別
-
- NDL
- Crossref
- CiNii Articles
- KAKEN