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“Caffeine Doping” of Carbon/Nitrogen‐Based Organic Catalysts: Caffeine as a Supramolecular Edge Modifier for the Synthesis of Photoactive Carbon Nitride Tubes
Author(s) -
Jordan Thomas,
Fechler Nina,
Xu Jingsan,
Brenner Thomas J. K.,
Antonietti Markus,
Shalom Menny
Publication year - 2015
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.201500343
Subject(s) - carbon nitride , rhodamine b , materials science , carbon fibers , nitride , photocatalysis , melamine , molecule , inorganic chemistry , chemical engineering , photochemistry , nanotechnology , chemistry , catalysis , organic chemistry , composite material , layer (electronics) , composite number , engineering
An alternative method for the structure tuning of carbon nitride materials by using a supramolecular approach in combination with caffeine as lining‐agent is described. The self‐assembly of the precursor complex consisting of melamine and cyanuric acid can be controlled by this doping molecule in terms of morphology, electronic, and photophysical properties. Caffeine is proposed to insert as an edge‐molecule eventually leading to hollow tube‐like carbon nitride structures with improved efficiency of charge formation. Compared to the bulk carbon nitride, the caffeine‐doped analogue possesses a higher photocatalytic activity for the degradation of rhodamine B dye. Furthermore, this approach is also shown to be suitable for the modification of carbon nitride electrodes.