Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102562 - 102562
Published: July 14, 2024
Ensuring
safe
drinking
water
remains
a
significant
challenge
due
to
the
prevalence
of
waterborne
diseases.
While
chlorine-based
and
UV-based
methods
effectively
kill
pathogens,
they
often
generate
harmful
byproducts.
Consequently,
there's
pressing
need
for
innovative
techniques,
such
as
utilizing
silver
nanoparticles(AgNPs)
renowned
their
antibacterial
properties.
In
this
study,
chemical
reduction
technique
was
employed
synthesize
AgNPs.
Subsequently,
these
AgNPs
underwent
comprehensive
characterization
using
techniques
FTIR,
XRD,TGA
XPS.
The
synthesized
nanoparticles
were
then
applied
disinfecting
spring
water.
experimental
design
meticulously
planned
central
composite
method
(CCD)
from
Response
Surface
Methodology
(RSM),
facilitated
by
Design
Expert
software.
Three
key
factors:
AgNPs,
pH,
contact
time
varied
across
three
levels,
resulting
in
total
20
designed
experiments.
These
experiments
conducted
accordance
with
specified
run
order,
culminating
achievement
maximum
bacteria
growth
inhibition
efficiency
99.72
%
at
optimal
conditions
0.01
mg/100
mL
dose,
pH
6,
min.
Overall,
findings
study
underscore
Magnetochemistry,
Journal Year:
2025,
Volume and Issue:
11(4), P. 24 - 24
Published: March 29, 2025
The
toxicity
of
hazardous
dyes
like
rhodamine
B
and
heavy
metal
ions
lead
warrants
the
need
for
wastewater
remediation.
We
describe
here
functionalization
cobalt-doped
iron
oxide
(Co0.1Fe2.9O4)
magnetic
nanoparticles
(MNPs)
with
citrate
moieties
effective
sequestration
dye
from
contaminated
water.
Citrate-functionalized
MNPs
are
prepared
using
a
co-precipitation
technique.
For
uncoated
MNPs,
hydrodynamic
diameter
zeta
potential
found
to
be
21
nm
~45
±
3.1
mV,
respectively.
diameters
increase
~51,
~59,
~68
functionalized
~20,
~40,
~60
mg/mL
citrate,
respectively,
whereas
corresponding
potentials
~−27.95
3.5
~−32.5
3.6
~−33.9
chemisorption
over
cause
negative,
phenomenon
which
is
further
verified
citrate-specific
absorption
bands
in
Fourier
transform
infrared
(FTIR)
spectra
surface-functionalized
MNPs.
UV-visible
spectrophotometry
employed
probe
MNP-aided
elimination
aqueous
media,
where
at
~554
~375
(for
(II)-5-dimercapto-1,3,4-thiadiazole
chelate)
utilized
quantitative
analyses.
These
citrate-functionalized
successfully
remove
toxic
water,
removal
efficiencies
~93.7
2.6%
~90
2.4%,
unbound
-COO−
functional
groups
electrostatically
interact
cationic
or
(II)
ions,
thereby
leading
adsorption
onto
subsequent
magnetic-field-assisted
removal.
experimental
findings
show
efficacy
pollutants
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102562 - 102562
Published: July 14, 2024
Ensuring
safe
drinking
water
remains
a
significant
challenge
due
to
the
prevalence
of
waterborne
diseases.
While
chlorine-based
and
UV-based
methods
effectively
kill
pathogens,
they
often
generate
harmful
byproducts.
Consequently,
there's
pressing
need
for
innovative
techniques,
such
as
utilizing
silver
nanoparticles(AgNPs)
renowned
their
antibacterial
properties.
In
this
study,
chemical
reduction
technique
was
employed
synthesize
AgNPs.
Subsequently,
these
AgNPs
underwent
comprehensive
characterization
using
techniques
FTIR,
XRD,TGA
XPS.
The
synthesized
nanoparticles
were
then
applied
disinfecting
spring
water.
experimental
design
meticulously
planned
central
composite
method
(CCD)
from
Response
Surface
Methodology
(RSM),
facilitated
by
Design
Expert
software.
Three
key
factors:
AgNPs,
pH,
contact
time
varied
across
three
levels,
resulting
in
total
20
designed
experiments.
These
experiments
conducted
accordance
with
specified
run
order,
culminating
achievement
maximum
bacteria
growth
inhibition
efficiency
99.72
%
at
optimal
conditions
0.01
mg/100
mL
dose,
pH
6,
min.
Overall,
findings
study
underscore
