Nitrogen-Rich and Porous Graphitic Carbon Nitride Nanosheet-Immobilized Palladium Nanoparticles as Highly Active and Recyclable Catalysts for the Reduction of Nitro Compounds and Degradation of Organic Dyes
In the present study, we have successfully synthesized nitrogen-rich graphitic carbon nitride (g-C 3 N 4 ) nanosheets by a simple direct thermal polymerization approach. The synthesized g-C 3 N 4 nanosheets were exfoliated using HCl to make their surface a few nanometers thick. The ultrathin surface...
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Published in | ACS omega Vol. 5; no. 22; pp. 13250 - 13258 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
09.06.2020
|
Online Access | Get full text |
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Summary: | In
the present study, we have successfully synthesized nitrogen-rich
graphitic carbon nitride (g-C
3
N
4
) nanosheets
by a simple direct thermal polymerization approach. The synthesized
g-C
3
N
4
nanosheets were exfoliated using HCl
to make their surface a few nanometers thick. The ultrathin surface
was achieved by simply mixing g-C
3
N
4
in 3 M
HCl. After that, palladium nanoparticles were uniformly immobilized
on the surface of g-C
3
N
4
. The synthesized materials
were characterized by various physiochemical techniques such as X-ray
diffraction, energy-dispersive X-ray spectroscopy, and Fourier transform
infrared spectroscopy. Information about morphology and size was obtained
through transmission electron microscopy and scanning electron microscopy.
The Brunauer–Emmett–Teller surface area, pore volume,
and pore diameter were determined using nitrogen adsorption–desorption
measurements. The prepared material (Pd/g-C
3
N
4
) was utilized as an efficient catalyst for the reduction of hazardous
nitroarenes and degradation of organic dyes. The catalyst could be
easily recovered through centrifugation and then could be reused multiple
times for the further catalytic cycles with a little loss in its catalytic
activity. The work presented here illustrates the sustainable anchoring
of metal nanoparticles over the surface of nitrogen-rich g-C
3
N
4
nanosheets and could be utilized for different types
of catalytic reactions. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2470-1343 2470-1343 |
DOI: | 10.1021/acsomega.0c01280 |