Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(46), P. 20327 - 20342
Published: Nov. 8, 2024
A
composite
of
UiO-66
and
activated
carbon
was
synthesized
by
using
a
solvothermal
method
to
efficiently
remove
heavy
metal
ions
from
synthetic
water
groundwater
at
trace
levels.
The
adsorbents
were
characterized
for
their
physicochemical
properties
FE-SEM,
EDX,
XRD,
BET,
TGA,
FT-IR,
XPS.
FE-SEM
EDX
analyses
confirmed
the
octahedral
structure
nanoparticles,
along
with
homogeneous
distribution
on
UiO-66.
XRD
patterns
revealed
that
samples
crystalline,
an
average
crystalline
size
39
nm.
Under
optimum
operating
conditions,
exhibited
maximum
capacities
Cd(II),
Cr(VI),
Pb(II),
Se(IV)
ions,
determined
be
431.1,
351.8,
499.3,
380.8
mg/g,
respectively.
In
contrast,
adsorbent's
meaningful
adsorption
capacity
against
permissible
ion
concentration
in
drinking
calculated
1.12,
21.54,
25.26,
37.94
mg/g.
These
values
surpass
those
most
similar
MOFs
other
porous
materials.
thermodynamic
study
these
spontaneous
endothermic
within
temperature
range
288.15–318.15
K.
Notably,
presence
competitive
coexisting
had
minimal
impact
removal
efficiency
emphasizing
selectivity
adsorbent.
adsorbent
demonstrated
excellent
performance
effectively
removing
allowable
limits
water.
material
showed
good
regeneration
capability
up
5
studied
cycles,
robust
highlighting
its
potential
application
treatment.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Fine
control
over
the
Ir
precursor
to
Nickel‐based
layered
double
hydroxides
(LDHs)
is
significant
for
decorating
both
single
atoms
(SA)
and
nanoclusters
(NC),
thus
modulating
catalytic
kinetics
improving
overall
performance.
In
this
study,
NiMn‐LDH
synthesized
co‐decorated
it
with
Iridium,
introducing
a
new
pathway
developing
efficient
bifunctional
electrocatalysts
in
water‐splitting
technologies.
Additionally,
typical
fibrous
material
has
developed
by
immobilizing.
onto
PAN
(polyacrylonitrile)
nanofibers
()
using
feasible
electrospinning
technique.
Notably,
catalyst
exhibits
low
overpotentials
of
249
110
mV
oxygen
(OER)
hydrogen
evolution
reactions
(HER)
at
10
mA
cm
−
2
,
cell
voltage
1.65
V
total
water
splitting
(TWS).
remained
stable
effective
alkaline
OER,
HER,
TWS
50
h.
Furthermore,
X‐ray
adsorption
near‐edge
spectrum
(XANES)
experiments,
together
theoretical
calculations,
show
that
synergistic
effect
SA
which
helps
enhance
activity,
promoting
electron
rearrangement
lowering
reaction
energy
barrier.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(24), P. 10037 - 10049
Published: Jan. 1, 2024
This
review
summarizes
various
syntheses
and
structural
characterization
of
metal
sulfide/polysulfide
intercalated
LDHs
their
sorption
properties
with
mechanisms
for
chemically
toxic
inorganic
species
(heavy
cations
oxo-anions).
Processes,
Journal Year:
2025,
Volume and Issue:
13(3), P. 876 - 876
Published: March 16, 2025
Given
the
pressing
demand
for
efficient
uranium
(U(VI))
enrichment
and
its
elimination
from
wastewater
to
curtail
risks
of
radioactive
contamination
inherent
in
nuclear
energy
applications,
it
is
crucial
design
materials
with
high
removal
efficiency
straightforward
separation
processes.
In
current
study,
we
incorporated
konjac
gum
(KGM)
into
MgAl-double
oxide
(MgAl-LDO)
synthesized
an
innovative,
economical,
environmentally
friendly
LDO-KGM
material
by
using
freeze-drying-calcination
(FDC)
method,
which
provided
a
solution
U(VI)
concentration
aqueous
solutions.
The
nanoflower
structures
abundant
pore
structure
specific
surface
area
exhibited
optimal
adsorptive
capacity
(3019.56
mg·g−1)
at
pH
=
6.0
293
K,
was
2.3
times
greater
than
that
MgAl-LDO
(1296.39
mg·g−1).
also
showed
great
adaptability
immobilization
over
broad
range
(4.0
9.0)
coexisting
ions.
adsorption
onto
adhered
pseudo-second-order
kinetic
model
(R2
≥
0.99)
Langmuir
isotherm
0.99).
analysis
thermodynamic
parameters
derived
isotherms
varying
temperatures
revealed
endothermic
spontaneous
process.
mechanism
underlying
mainly
complexation,
carbonate
co-precipitation,
electrostatic
adsorption.
Furthermore,
could
still
retain
more
84.5%
after
five
cycles.
findings
indicate
exhibits
potential
as
exceptionally
potent
adsorbent
purification
contaminated
U(VI).
New Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
48(29), P. 13038 - 13047
Published: Jan. 1, 2024
Sulfamethizole
(SIZ)
exhibited
spontaneous,
exothermic
and
fast
adsorption
on
Ni-AAPTMS-SBA-15
within
2
min
maximum
capacity
of
188.68
mg
g
−1
,
attributing
to
combined
mechanism
electrostatic
interaction,
complexation
pore-filling.
