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Photocatalytic Hydrogen Production with Copper Photosensitizer–Titanium Dioxide Composites
Author(s) -
Karnahl Michael,
Mejía Esteban,
Rockstroh Nils,
Tschierlei Stefanie,
Luo ShuPing,
Grabow Kathleen,
Kruth Angela,
Brüser Volker,
Junge Henrik,
Lochbrunner Stefan,
Beller Matthias
Publication year - 2014
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.201300459
Subject(s) - photocatalysis , titanium dioxide , copper , catalysis , photosensitizer , materials science , hydrogen , titanium , hydrogen production , photochemistry , composite material , inorganic chemistry , chemistry , chemical engineering , organic chemistry , metallurgy , engineering
A series of heteroleptic copper photosensitizers [( $\widehat{PP}$ )Cu( $\widehat{NN}$ (SO 3 Na) 2 )] + containing sulfonate anchor groups is described. In the presence of titanium dioxide they form composites, which are active photosensitizers in the light driven reduction of protons. Further stabilization of these systems is achieved by encapsulation within a plasma‐polymerized allylamine (PPAAm) layer. The resulting PPAAm‐CuPS‐TiO 2 ‐composites exhibit a strong absorption in the visible region of the light. Photocatalytic hydrogen production is performed by using only non‐noble metals. In the presence of an iron reduction catalyst a maximum turnover number of 2452 is obtained.