E3S Web of Conferences,
Год журнала:
2024,
Номер
588, С. 01010 - 01010
Опубликована: Янв. 1, 2024
The
environmentally
friendly
manufacturing
of
silver
nanoparticles
(AgNPs)
using
plant-based
extracts
has
received
immense
interest.
This
study
synthesized
AgNPs
from
aloe
vera,
green
tea,
ginger,
neem,
and
lemon
examined
how
varied
synthesis
circumstances
affected
nanoparticle
characteristics.
was
performed
at
50–70°C,
pH
6.5–
9,
with
precursor
concentrations
0.5–2
mM.
Results
showed
that
higher
increased
size
by
15%.
plant
extract,
temperature,
the
nanoparticles’
morphology,
which
ranged
spherical
to
rod-like
irregular.
In
antibacterial
experiments,
generated
turmeric
extract
were
25%
more
effective
against
*
E.
coli
S.
aureus
bacteria
than
those
made
vera
extract.
methylene
blue
Congo
red
dye
degradation
studies,
tea
extract-generated
had
10%
greater
catalytic
activity
extract-derived
ones.
comprehensive
shows
green-synthesized
may
be
customized
utilizing
eco-friendly
methods,
making
them
promising
for
nanotechnology,
biomedicine,
catalysis,
environmental
research.
Chemical Physics Impact,
Год журнала:
2024,
Номер
8, С. 100587 - 100587
Опубликована: Март 27, 2024
The
preparation
of
MgAl
Layer
Double
Hydroxide
(LDH)
was
performed
using
the
coprecipitation
method.
Pristine
LDH
calcined
at
500°C
to
produce
Oxide
(LDO).
two
materials
were
modified
via
restacking-delaminating
bioactive
compounds
from
flower
extract
Clitoria
ternatea
(CT)
LDH-CT
and
LDO-CT.
Modifications
are
enhance
stability
catalyst
structure,
allowing
its
higher
photocatalytic
activities
regeneration
use.
prepared
catalysts
characterized
XRD,
FT-IR,
UV-DRS,
BET,
SEM-EDX.
XRD
diffraction
pattern
showed
that
three
have
typical
patterns
commonly
observed
in
LDH-based
materials.
FT-IR
spectra
confirmed
LDO-CT
combined
precursor
has
lowest
bandgap
energy
with
highest
degradation
kinetics.
BET
SEM-EDX
characterization
shows
uniform
surface
pore
size
on
used
ciprofloxacin
photodegradation
under
UV
light.
optimal
dose
5
mg,
while
pH
5.
LDO-CT,
LDH-CT,
capacity
up
73.300%,
65.739%,
71.320%,
respectively,
within
120
minutes.
Repeated
use
third
cycle
resulted
%R
reaching
80.871%,
74.003%,
52.025%,
by
LDH.
Compared
pristine
LDH,
CT
intercalated
exhibited
more
excellent
stability.
Coatings,
Год журнала:
2024,
Номер
14(2), С. 203 - 203
Опубликована: Фев. 4, 2024
Due
to
the
ongoing
threat
of
degradation
artefacts
and
monuments,
conservation
cultural
heritage
items
has
been
gaining
prominence
on
global
scale.
Thus,
finding
suitable
approaches
that
can
preserve
these
materials
while
keeping
their
natural
aspect
is
crucial.
In
particular,
preventive
an
approach
aims
control
deterioration
before
it
happens
in
order
decrease
need
for
intervention.
Several
techniques
have
developed
this
context.
Notably,
application
coatings
made
metal
oxide
nanomaterials
dispersed
polymer
matrix
be
effectively
address
stone
issues.
(TiO2,
ZnO,
CuO,
MgO)
with
self-cleaning
antimicrobial
activity
considered
as
possible
conservative
materials.
Metal
used
strengthen
several
studies.
This
review
seeks
update
knowledge
different
kinds
nanomaterials,
especially
nanoparticles
nanocomposites,
employed
preservation
consolidation
over
last
10
years.
transport
diverse
environments
undoubtedly
not
well
understood.
Therefore,
controlling
effects
various
neighbouring
non-target
organisms
ecological
processes
Nanomaterials,
Год журнала:
2025,
Номер
15(5), С. 379 - 379
Опубликована: Фев. 28, 2025
Nanoparticles
(NPs)
have
generated
significant
interest
in
various
fields
due
to
the
unique
properties
that
materials
exhibit
at
nanoscale.
This
study
presents
a
comparative
analysis
of
copper
nanoparticles
(Cu-NPs)
and
cobalt
(Co-NPs)
synthesized
via
conventional
solvothermal
green
hydrothermal
synthesis
using
ethylene
glycol
Medicago
sativa
extract,
respectively.
The
showed
higher
efficiency
for
both
Cu-NPs
Co-NPs
with
yields
32.5%
26.7%,
Characterization
through
UV-visible
spectroscopy
(UV-vis),
Fourier-transform
infrared
(FTIR)
atomic
force
microscopy
(AFM)
revealed
while
produced
larger
particles
(76.5
nm
Cu-NPs,
86.8
Co-NPs),
method
yielded
smaller
(53.8
67.7
Co-NPs)
better
control
over
particle
size
distribution
spherical
morphology,
showing
minimal
agglomeration.
UV-vis
confirmed
metal
oxide
formation,
FTIR
complex
patterns
NPs
(green
hydrothermal),
indicating
plant
extract
compounds.
Antifungal
evaluation
against
Pseudocercospora
fijiensis
complete
inhibition
2000
ppm
NP
types,
no
mycelial
growth
after
30
days.
When
integrated
into
chitosan,
rougher
surfaces,
scanning
electron
microscope
(SEM)
presence
nanocomposites.
provides
insights
an
environmentally
friendly
process
their
microbiological
applications
future
use
organic
agriculture.
