Journal of King Saud University - Science,
Journal Year:
2024,
Volume and Issue:
36(3), P. 103089 - 103089
Published: Jan. 2, 2024
This
investigation
utilized
an
eco-friendly
method
to
produce
copper
oxide
nanoparticles
(CuO
NPs)
through
the
utilization
of
Jasminium
sambac
leaf
extract.
Optimization
pH,
temperature,
reaction
time,
and
sulfate
concentration
were
performed.
Characterization
via
UV-Vis,
SEM,
XRD,
FTIR,
EDX
techniques
revealed
a
peak
at
243
nm
in
FTIR
band
590
cm-1
confirmed
Cu(II)
ion
reduction
CuO
NPs.
identified
as
crucial
synthesis
parameters.
analysis
indicated
composition
75.94%
24.06%
oxygen.
NPs
dispersive,
monoclinic,
crystalline,
pure,
with
average
particle
size
13.4
nm.
Photocatalytic
experiments
achieved
97%
Methylene
Blue
dye
degradation
210
minutes,
highlighting
efficacy
green
for
significant
photocatalytic
activity
wastewater
remediation.
Green Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
11, P. 100146 - 100146
Published: Sept. 3, 2024
Centella
asiatica,
is
renowned
in
traditional
medicine
for
its
diverse
applications,
such
as
treating
lupus,
skin
ailments,
leprosy,
fever,
gastrointestinal
issues,
mental
disorders,
neurodegenerative
conditions,
and
enhanced
cognitive
functions.
Microwave-assisted
solvent
extraction
(MASE)
was
chosen
a
more
effective,
efficient,
environmentally
friendly
method
than
the
conventional
used
to
extract
asiatica.
This
study
aims
optimize
process
asiatica
using
Box-Behnken
Design
experimental
approach.
The
results
showed
that
highest
yield,
62.25%,
obtained
at
microwave
power
of
450
W,
feed-solvent
(F/S)
ratio
0.05,
time
5
minutes.
F/S
lowest
20.69%,
0.10,
10
critical
parameters
under
investigation
include
time,
power,
ratio.
Employing
design
(BBD)
allows
identification
conditions
provide
optimal
results.
optimum
achieve
maximum
yield
62.4912%
were
546.18
0.05
g/mL,
5.10
min.
