A Z-scheme photocatalyst constructed with an yttrium-tantalum oxynitride and a binuclear Ru(II) complex for visible-light CO2 reduction

作者:Muraoka Kanemichi; Kumagai Hiromu; Eguchi Miharu; Ishitani Osamu*; Maeda Kazuhiko*
来源:Chemical Communications, 2016, 52(50): 7886-7889.
DOI:10.1039/c6cc03627a

摘要

An yttrium-tantalum oxynitride having a band gap of 2.1 eV (absorbing visible light at < 580 nm) was applicable as a semiconductor component of a Z-scheme CO2 reduction system operable under visible light, in combination with a binuclear Ru(II) complex that has strong absorption in the visible region (< 600 nm). Excitation of this system with visible light under a CO2 atmosphere induced photocatalytic formation of formic acid with very high selectivity (> 99%).

  • 出版日期2016