Dumbbell-Shaped Nanoporous CaCO3 for Phosphate Removal
ACS Applied Nano Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Язык: Английский
Modified Silica Particles Coated with Cu-Al Layered Double Hydroxide for Phosphate and Arsenate Removal in Water Treatment
Molecules,
Год журнала:
2025,
Номер
30(10), С. 2138 - 2138
Опубликована: Май 13, 2025
Environmental
pollution
remains
one
of
the
most
pressing
challenges
facing
modern
society,
with
removal
toxic
substances
from
water
sources
being
particular
concern.
In
this
study,
a
composite
material
was
synthesized
by
combining
Cu-Al
layered
double
hydroxides
(CuAl-LDHs)
modified
silica
particles,
aiming
to
develop
an
efficient
and
environmentally
friendly
adsorbent
for
phosphate
arsenate
ions
water.
CuAl-LDH,
Cu2+/Al3+
molar
ratio
2:1,
using
co-precipitation
method
in
presence
maintaining
LDH/SiO2
mass
2:1.
The
particles
were
functionalized
3-glycidyloxypropyltrimethoxysilane
(GLYMO)
followed
modification
polyethyleneimine
(PEI)
enhance
their
adsorption
properties.
X-ray
diffraction
(XRD)
confirmed
successful
deposition
CuAl-LDH
on
surface,
while
scanning
electron
microscopy
(SEM)
revealed
porous
structure
uniform
LDH.
Adsorption
experiments
performed
evaluate
efficiency
under
varying
conditions.
Equilibrium
capacities,
based
Langmuir
isotherm
model,
determined
be
44.6
mg·g-1
(PO43-)
32.3
(As(V))
at
25
°C.
sorption
behavior
better
described
Freundlich
which
yielded
KF
values
15.4
L·mg-1
13.9
arsenate.
Both
batch
kinetic
high
composite,
demonstrating
its
potential
as
promising
treatment
applications.
Язык: Английский
Magnetic Layered Double Hydroxide Nanocomposites: Synthesis, Catalytic Performances, Environmental and Biological Applications
Energy & environment materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 28, 2025
In
the
present
review,
we
addressed
synthesis
and
applications
of
magnetic
layered
double
hydroxide
nanocomposites
in
different
scientific
areas
including
catalysis,
environmental
remediation,
biological
functions.
First,
appraised
varied
approaches
for
hydroxides
(LDHs),
containing
co‐precipitation,
hydrothermal,
sol–gel,
ion‐exchange,
urea
hydrolysis,
reconstruction
methods.
Afterward,
concentrated
on
utility
LDH‐based
composites
evaluated
their
catalytic
effectiveness
4‐nitrophenol
reduction,
coupling
reactions,
preparation
polycyclic
aromatic
compounds,
oxidation
reactions.
Next,
applicability
LDHs
was
assessed
removal
water
pollutants
dyes.
Ultimately,
discussed
efficiency
LDH
like
drug
delivery.
Investigating
obtained
results
reviewed
reports
demonstrated
auspicious
performance
these
compounds
all
above‐mentioned
fields.
Overall,
manifested
a
satisfactory
outlook
various
due
to
stability,
remarkable
flexibility,
relatively
proper
surface
area,
appropriate
adsorption
capacity,
as
well
propitious
retrievability
reusability
character.
Язык: Английский