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Photochemical Oxidative Coupling of 2‐Naphthols using a Hybrid Reduced Graphene Oxide/Manganese Dioxide Nanocomposite under Visible‐Light Irradiation
Author(s) -
Kumar Anurag,
Aathira M. S.,
Pal Ujjwal,
Jain Suman L.
Publication year - 2018
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.201701470
Subject(s) - photocatalysis , graphene , nanocomposite , manganese , oxide , visible spectrum , materials science , nanoparticle , photochemistry , oxidative coupling of methane , irradiation , hybrid material , chemical engineering , chemistry , nanotechnology , catalysis , organic chemistry , optoelectronics , engineering , physics , nuclear physics , metallurgy
We describe a simple, cost‐effective, efficient, and high‐yielding photocatalytic approach for the oxidative self‐dimerization of 2‐naphthols using a semiconductor–metal hybrid that consists of intercalated manganese dioxide nanoparticles in reduced graphene oxide (rGO/MnO 2 ) under visible‐light irradiation. The desired photocatalyst was synthesized in a single step by mixing MnO 2 nanoparticles with rGO ultrasonically. The hybrid photocatalyst exhibited a significantly higher activity than neat MnO 2 nanoparticles and rGO, which is believed to be because of the synergistic effect of its components. To our knowledge, this hybrid rGO/MnO 2 nanocomposite is the first heterogeneous, green photocatalyst for the oxidative coupling of 2‐naphthols under mild conditions.