Journal of the Chinese Chemical Society,
Journal Year:
2023,
Volume and Issue:
70(4), P. 879 - 893
Published: March 23, 2023
Abstract
CoS@MorphcdtH
NPs
and
CoS@4‐MPipzcdtH
were
synthesized
by
precipitation
method
involving
three
mechanisms:
inclusion,
occlusion,
adsorption.
The
characterized
with
the
help
of
UV‐Vis
spectroscopy,
FESEM‐EDAX,
powder
x‐ray
diffraction,
TEM,
ESIMS,
TG/DSC
analysis.
morphology
hexagonal
rectangular,
particles
in
range
7–12
nm.
UV–visible
spectral
measurements
showed
surface
plasmon
resonance
at
320
nm–340
nm
band
gap
3.65
eV–3.86
eV.
catalytically
active
CoSNPs
called
investigated
for
reduction
4‐nitrophenol
(4‐NP)
via
hydrogenation
using
sodium
borohydride
(NaBH
4
)
as
a
reducing
agent.
Both
CoS
successfully
reduced
4‐NP
to
4‐
aminophenol
(4‐AP)
short
time,
catalytic
performances
are
almost
unchanged
first
five
cycles.
Herein,
we
report
preparation
characterizations
efficient
consisting
carbodithioic
acid
framework
support/capping
material,
along
property.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(8), P. 2896 - 2929
Published: Jan. 1, 2023
Lignin
is
a
promising
bio-polyphenol
that
can
be
used
as
catalyst
in
various
industrial
and
commercial
processes.
Its
high
catalytic
activity
reusability
provide
sustainable
alternative
to
conventional
catalysts.
Environmental Science and Pollution Research,
Journal Year:
2022,
Volume and Issue:
29(59), P. 89772 - 89787
Published: July 20, 2022
Abstract
In
the
current
work,
various
concentrations
of
aqueous
extract
Ziziphus
spina-christi
were
employed
for
phytoreduction
graphene
oxide
(GO).
The
green
synthesized
reduced
(rGO)
was
characterized
through
UV-Vis
spectrometry,
Fourier
transform
infrared
spectroscopy
(FT-IR),
scanning
electron
microscopy,
and
energy-dispersive
X-ray
(SEM-EDX).
Gas
chromatography-mass
spectrometry
(GC-MS)
denoted
presence
numerous
phytoconstituents
including
ketones,
terpenoids,
fatty
acids,
esters,
flavonoids,
which
acted
as
reducing
capping
agents.
obtained
results
indicated
increase
in
rGO
yield
shape
with
increasing
concentration.
optimized
instantaneously
~100%
removed
methylene
blue
(MB)
from
water
at
5
mg
L
−1
.
However,
removal
efficiency
slightly
declined
to
reach
73.55
65.1%
10
15
,
respectively.
A
powerful
antibacterial
activity
particularly
against
gram-negative
bacteria
a
high
concentration
2
×
8
CFU
mL
confirmed.
Furthermore,
demonstrated
promising
comparable
antioxidant
vitamin
C
DPPH
free
radical
scavenging.
While
recorded
13.45
48.4%,
attained
13.30
45.20%
12
50
μg
