posted on 2020-03-06, 19:08authored byHassan Alamgholiloo, Sadegh Rostamnia, Kaiqiang Zhang, Tae Hyung Lee, Yoon-Sik Lee, Rajender S. Varma, Ho Won Jang, Mohammadreza Shokouhimehr
Fabrication
of a nanocomposite catalyst via a novel and efficient
strategy remains a challenge; Fe3O4 nanoparticles
anchored on graphene oxide (GO) sheet-supported metal-organic frameworks
(MOFs). In this study, the physicochemical properties of the ensuing
Fe3O4/Cu-BDC/GO are investigated using Fourier
transform infrared spectrum, scanning electron microscopy, transmission
electron microscopy, X-ray photoelectron spectroscopy, energy-dispersive
X-ray detector, and atomic absorption spectroscopy. The salient features
of the nanocomposite such as Cu-MOF, synergistic effect with GO sheets,
and magnetic separation characteristics make it an excellent ternary
heterostructure for aerobic oxidation of alcohols. The proposed nanocatalyst
and co-catalyst 2,2,6,6-tetramethylpiperidine-N-oxyl
substantially enhance the catalytic performance for the aerobic oxidation
under very mild and sustainable reaction conditions. The heterogeneity
of Fe3O4/Cu-BDC/GO composite catalyst is affirmed
with the added advantage that the initial activity is well maintained
even after seven cycles.