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Visible‐light Homogeneous Photocatalytic Conversion of CO 2 into CO in Aqueous Solutions with an Iron Catalyst
Author(s) -
Rao Heng,
Bonin Julien,
Robert Marc
Publication year - 2017
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201701467
Subject(s) - photocatalysis , catalysis , aqueous solution , homogeneous , homogeneous catalysis , visible spectrum , chemistry , heterogeneous catalysis , inorganic chemistry , materials science , photochemistry , chemical engineering , organic chemistry , physics , optoelectronics , engineering , thermodynamics
An iron‐substituted tetraphenyl porphyrin bearing positively charged trimethylammonio groups at the para position of each phenyl ring catalyzes the photoinduced conversion of CO 2 . This complex is water soluble and acts as a molecular catalyst to selectively reduce CO 2 into CO under visible‐light irradiation in aqueous solutions (acetonitrile/water=1:9 v / v ) with the assistance of purpurin, a simple organic photosensitizer. CO is produced with a catalytic selectivity of 95 % and turnover number up to 120, illustrating the possibility of photocatalyzing the reduction of CO 2 in aqueous solution by using visible light, a simple organic sensitizer coupled to an amine as a sacrificial electron donor, and an earth‐abundant metal‐based molecular catalyst.