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Gold(I)‐Complex–Titania Hybrid Photocatalyst for Hydrogen Production
Author(s) -
Aguiló Elisabet,
Soler Lluís,
Casanovas Albert,
Moro Artur J.,
Lima João Carlos,
Rodríguez Laura,
Llorca Jordi
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700518
Subject(s) - photocatalysis , hydrogen production , moiety , photochemistry , materials science , semiconductor , metal , colloidal gold , hydrogen , nanoparticle , visible spectrum , decomposition , nanotechnology , chemical engineering , catalysis , chemistry , organic chemistry , optoelectronics , metallurgy , engineering
Abstract The integration of TiO 2 with a Au I complex containing a thiocoumarin moiety resulted in a very efficient photocatalyst for the generation of H 2 . The molecular structure of the complex was preserved under the photoreaction owing to the strong Au I −S bond. The Au I complex played a determinant role in the photogeneration of H 2 by accepting the photoinduced electrons originated in TiO 2 upon light exposure. This is the first example of a Au I complex semiconductor hybrid photocatalyst. The rate of H 2 generation under dynamic conditions from water/ethanol is approximately one order of magnitude superior on a metal basis to that obtained over conventional TiO 2 decorated with Au metal nanoparticles.