Karbala International Journal of Modern Science,
Journal Year:
2023,
Volume and Issue:
9(3)
Published: Aug. 22, 2023
This
study
investigated
the
treatment
of
textile
wastewater
contaminated
with
Acid
Black
210
dye
(AB210)
using
zinc
oxide
nanoparticles
(ZnO
NPs)
through
adsorption
and
photocatalytic
techniques.
ZnO
NPs
were
synthesized
a
green
synthesis
process
involving
eucalyptus
leaves
as
reducing
capping
agents.
The
characterized
UV-Vis
spectroscopy,
SEM,
EDAX,
XRD,
BET,
Zeta
potential,
FTIR
BET
analysis
revealed
specific
surface
area
total
pore
volume
26.318
m2/g.
SEM
images
confirmed
crystalline
spherical
nature
particles,
particle
size
73.4
nm.
A
photoreactor
was
designed
to
facilitate
photo-degradation
process.
influence
key
variables
on
break-down
AB210.
results
indicated
that
under
optimal
conditions
(AB210
concentration:
5
mg/L,
dosage:
0.75
g/L,
pH:
5,
temperature:
45
°C),
removal
efficiency
after
180
minutes
62%.
However,
in
case
photo-degradation,
complete
mg/L
AB210
achieved
within
30
at
pH
7,
UV
intensity
24
W/m2,
temperature
°C.
exhibited
best
fit
pseudo-second-order
kinetic
model.
Various
isotherms,
including
Freundlich,
Langmuir,
Temkin,
Dubinin
models,
studied,
Langmuir
isotherm
provided
experimental
data
(see
Supplementary
Materials).
Fur-thermore,
thermodynamic
spontaneous,
endothermic,
favorable,
ΔG°,
ΔH°,
ΔS°
values
-0.782
kJ/mol,
26.93
0.086
kJ.mol/K,
respectively.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 30, 2024
Green
synthesis
using
plant
extracts
such
as
Ocimum
basilicum
L.
(OBL)
seed
has
attracted
attention
due
to
its
sustainable
and
environmentally
friendly
nature.
In
this
study,
ZnO-MgO-Mn2O3
nanocomposites
were
synthesized
OBL
extract
at
two
different
calcination
temperatures
of
500
°C
600
°C,
evaluated
in
terms
photocatalytic
application
cytotoxicity.
Phytochemicals
seeds
act
reducing
masking
agents
the
production
route,
which
leads
formation
nanomaterials
with
unique
properties.
Characterization
techniques,
including
XRD,
FE-SEM,
DRS
used
analyze
structural,
morphological,
optical
features
nanocomposite.
XRD
results
confirmed
increasing
crystal
size
from
~
32
nm
(500
°C)
84
(600
°C).
Also,
FE-SEM
images
showed
irregularly
shaped
EDX
spectra
samples
presence
zinc,
magnesium,
manganese,
oxygen
elements.
The
behavior
nanocomposite
cacined
was
investigated
for
organic
pollutants.
Removal
percentages
97%
Eriochrome
Black
T
dye
(pH
=
10
90
min),
99%
methylene
blue
60
89%
methyl
orange
105
86.9%
Rhodamine
B
3
min)
obtained.
Moreover,
cytotoxicity
on
4T1
cell
line
investgate
effect
biological
systems,
IC50
value
obtained
around
323
µg/mL.
Materials Advances,
Journal Year:
2024,
Volume and Issue:
5(20), P. 8111 - 8131
Published: Jan. 1, 2024
The
present
study
introduces
Trigonella
foenum-graecum
(TFG,
fenugreek)-mediated
Co
3
O
4
nanoparticles
(NPs)
as
an
innovative
solution
for
eliminating
industrial
azo
dyes
from
contaminated
water.
Drug Development and Industrial Pharmacy,
Journal Year:
2023,
Volume and Issue:
49(12), P. 723 - 733
Published: Oct. 31, 2023
Bacterial
infections
caused
by
different
strains
of
bacteria
still
one
the
most
important
disorders
affecting
humans
worldwide.
Polymers
nanocomposite
systems
could
be
considered
as
an
alternative
to
conventional
antibiotics
eradicate
bacterial
infections.In
attempt
enhance
antibacterial
performance
silver
and
iron
oxide
nanoparticles,
decrease
their
aggregation
toxicity,
a
polymeric
hybrid
system
combining
both
nanoparticles
is
produced.Magnetic
Ag-Fe3O4@polymer
nanocomposites
prepared
using
polymers,
namely
polyethylene
glycol
4000,
ethyl
cellulose,
chitosan
were
synthesized
via
wet
impregnation
ball-milling
techniques.
The
produced
tested
for
physical
properties
activities.XRD,
FT-IR,
VSM,
TEM
results
confirmed
successful
preparation
nanocomposites.
Hybrid
have
average
crystallite
sizes
in
following
order
Ag-Fe3O4@CS
(8.9
nm)
<
Ag-Fe3O4@EC
(9.0
Ag-Fe3O4@PEG4000
(9.4
active
surface
area
this
trend
(130.4
m2g-1)
>
(128.9
(123.4
m2g-1).
In
addition,
they
saturation
magnetization
order:
(44.82
emu/g)
(40.14
(22.90
emu/g).
pronounced
action
against
Bacillus
cereus,
Escherichia
coli,
Pseudomonas
aeruginosa,
Staphylococcus
intermedius
compared
positive
drug.
lower
MIC
values
Ag-Fe3O4@PEG
control.Magnetic
Ag-Fe3O4
promising
nanomaterials
pave
way
development
new
materials
with
even
more
unique
applications.
Environmental Science Water Research & Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Our
findings
offer
insight
into
the
impact
of
ZnO
nanoparticles
produced
from
Ficus
Religiosa
leaf
extract
on
photocatalytic
degradation
tannery
wastewater.
Advanced Engineering Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
The
emergence
of
bacterial
infections
poses
an
enormous
health,
economic,
and
global
burden
on
organisms.
However,
silver‐based
materials
with
strong
antibacterial
activity
are
difficult
to
apply
due
the
high
toxicity.
Therefore,
zinc–silver
nitroprusside
nanocomposites
(Zn–AgNP
NCs)
prepared
using
sodium
as
a
medium
characterized
achieve
enhancement
their
properties
reduction
cytotoxicity.
Herein,
Zn–AgNP
NCs
show
cubic
shape
average
size
161.23
±
3.77
nm
exhibit
negative
zeta
potential
(–25
0.23
mV).
crystalline
similar
those
silver
nanoparticles
(AgNP
NPs)
zinc
(ZnNP
NPs).
Furthermore,
demonstrate
enhanced
anti‐biofilm
activities
against
multiple
pathogens,
including
Bacillus
cereus
(MIC
50
=
8.8
μg
mL
−1
),
induce
levels
nucleic
acid
protein
leakage
in
bacteria.
In
addition,
low
cytotoxicity
(below
15.6
)
biocompatibility
(up
250
).
Overall,
excellent
capabilities
superior
compared
AgNP
NPs.
This
study
suggests
that
have
be
utilized
safe
effective
agent.
