Materials,
Journal Year:
2024,
Volume and Issue:
17(23), P. 5994 - 5994
Published: Dec. 6, 2024
Drinking
and
wastewater
are
to
be
treated
for
safe
human
consumption
keeping
surface
waters
clean.
There
multiple
water
purification
procedures,
but
the
use
of
ion-exchange
resins
significantly
enhances
efficiency.
This
review
was
targeted
on
highlighting
concept
classification
polymeric
as
well
pointing
out
their
real-world
applications.
Their
successful
purposes
has
been
linked
chemical
structure,
simplicity
operation,
accessibility,
reusability.
Therefore,
have
used
removal
a
wide
range
organic
inorganic
pollutants
such
pharmaceutical
compounds,
dyes,
matter,
metals,
many
others.
Ion-exchange
obtained
directly
by
synthesis
methods
or
grafting
ionizable
groups
polymer
matrix
in
order
ensure
continuous
improvement.
Furthermore,
newly
designed
take
into
consideration
biodegradability
potential
towards
obtaining
ecofriendly
compounds.
Applied Water Science,
Journal Year:
2025,
Volume and Issue:
15(2)
Published: Jan. 27, 2025
Abstract
Palm
Peat
(PP),
the
world’s
first
rich
lignocellulosic
medium
derived
from
date
palm
agricultural
residues,
has
not
been
previously
explored
for
environmental
purification.
This
study
evaluates
PP's
performance
in
adsorbing
methylene
blue
(MB)
dye.
PP
is
characterized
by
a
spongy,
porous
structure
with
surface
area
of
16
m
2
/g.
It
possesses
significant
carbon
and
oxygen
composition
features
active
functional
groups.
Under
conditions
30
mg/L
initial
MB
concentration,
1
g/L
dose,
T
=
°C,
pH
7,
900
rpm
stirring
speed,
achieved
68.26%
removal
efficiency
within
90
min.
Although
higher
temperatures
enhanced
efficiencies,
room
temperature
(30
°C)
was
chosen
subsequent
experiments
to
assess
adsorption
under
ambient
minimize
energy
consumption.
Stirring
speeds
exceeding
reduce
efficiency,
likely
due
shear
forces
disrupting
interaction
between
molecules
or
causing
desorption
adsorbed
dye
molecules.
Response
methodology
combined
central
composite
design
employed
optimize
dosage,
solution
pH.
optimum
conditions,
97.89%
removal.
exhibited
strong
stability
over
five
cycles.
Adsorption
occurs
via
π-π
stacking,
hydrogen
bonding,
hydrophobic-hydrophobic
interactions,
electrostatic
process
being
endothermic
following
Langmuir
isotherm
model
pseudo-second-order
kinetic
model.
The
studies
across
different
water
matrices
revealed
lowest
degradation
rate
drain
matrix.
71.5%
48.16%
TOC
real
textile
wastewater.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 30, 2025
Crystal
violet
(Cry)
is
an
essential
textile
dye
belonging
to
the
triphenylmethane
group,
that
widely
used
in
industry.
It
also
applied
for
paper
printing
and
Gram
staining.
Previously,
it
was
significant
as
a
topical
antiseptic
due
its
antibacterial,
antifungal,
anthelmintic
properties.
Despite
various
applications,
crystal
has
been
recognized
biohazard
toxic
carcinogenic
persists
environment
with
long-lasting
effects
detrimental
impacts.
In
this
research,
water
extract
from
Moringa
oleifera
leaves
employed
environmentally
friendly
methods
synthesize
zinc
oxide
nanoparticles
(Mo/ZnO-NPs),
characterized
by
TEM,
EDX,
FT-IR,
Zeta
potential.
Mo/ZnO-NPs
exhibit
potential
of
−
21.9
mV,
X-ray
diffraction
(XRD)
analysis
confirms
their
crystallographic
structure.
The
size
biogenic
ranges
5.52
41.59
nm.
This
study
designed
estimate
maximize
ability
remove
using
Central
Composite
Design
(CCD),
considering
pH
(ranging
3
11),
incubation
time
30
150),
concentrations
0.2
1.8
mg/mL),
25
125
ppm).
maximum
percentage
value
removal
97.26
optimal
conditions
9,
120
min,
1.4
mg/mL,
concentration
50
ppm.
best-predicted
caused
highest
(97.8%)
were
determined
desirability
function
10,
140
1.3
80
Under
these
conditions,
experimental
removal%
(98.7%)
verified.
synthesized
can
be
promising
candidate
adsorption
violet.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 7, 2025
This
study
reports
on
the
facile
development
of
star-shaped
gold
nanoparticles
via
seed-mediated
growth
protocol.
Gold
nanostars
(AuNSTs)
demonstrated
average
particle
size
48
nm
using
transmission
electron
microscopy
(TEM).
Chemical
composition
AuNSTs
was
verifired
energy
dispersive
X-ray
spectroscopy
(EDX)
mapping.
high
optical
response
under
visible
spectrum,
with
maximum
absorption
at
685
nm,
UV-Vis
spectroscopy.
Therefore
could
be
involoved
into
photocatalytic
reaction
spectrum.
superior
performance
in
degradation
rhodamine
B
dye
(RB),
and
disinfection
some
pathogenic
bacteria.
offered
enhanced
removal
efficiency
against
(82.0
±
0.35%
135
min)
irradiation.
Remarkably,
proper
conditions
pH
=
9,
approximately
94
0.55%
a
10
ppm
RB
solution
effectively
photodegraded
after
min;
this
ascribed
to
strong
electrostatic
attraction
between
negatively
charged
surface
positive
contaminant.
activity
correlated
interfacial
charge
transfer
for
Au,
pair
separation
Additionally,
exhibited
potential
antibacterial
Escherichia
coli
(E.
coli)
Staphylococcus
aureus
(S.
aureus).
substantial
disk
diffusion
microbroth
dilution
tests
zones
inhibition
minimum
inhibitory
concentrations
(MIC)
E.
(20.0
0.54
mm,
1.25
µg/ml)
S.
(23.0
0.35
0.625
µg/ml),
respectively.
In
conclusion,
efficient
capabilities
along
significant
antimicrobial
gram-positive
gram-negative
bacterial
strains.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 24, 2025
ABSTRACT
In
this
study,
hydrogels
based
on
[2‐(Methacryloyloxy)ethyl]trimethylammonium
chloride
(MOEAMCl)
and
methacrylamide
(MAAm)
were
synthesized
for
the
removal
of
anionic
dyes
from
aqueous
solutions.
Following
detailed
characterization,
use
methyl
orange
(MO)
adsorption
was
investigated.
Hydrogels
prepared
at
MOEAMCl‐MAAm
monomer
feed
ratios
75:25
50:50
(HD‐2
HD‐3)
found
to
be
effective
in
MO
removal.
The
optimal
pH
determined
9,
time
6
h,
amount
adsorbent
0.1
g.
Under
conditions,
dye
an
concentration
1000
ppm
89.4%
90.9%
HD‐2
HD‐3
hydrogels,
respectively,
with
capacities
950
994
mg/g.
It
observed
that
both
decreased
increasing
temperature,
but
almost
unaffected
by
medium
matrix.
Additionally,
Freundlich
isotherm
appropriate
model,
kinetic
results
indicated
hydrogel
fit
all
examined
models
better
than
HD‐2.
conclusion,
it
these
adsorbents
could
efficiently
used
