JCIS Open,
Journal Year:
2024,
Volume and Issue:
15, P. 100118 - 100118
Published: June 26, 2024
The
present
study
involved
the
preparation,
characterization,
and
evaluation
of
layered
double
hydroxide
(LDH)
with
assistance
algae
Spirulina
platensis
(NiAl-Sp
ZnAl-Sp).
These
materials
were
investigated
for
their
potential
selective
adsorption
cationic
dyes,
including
rhodamine
B,
malachite
green,
methylene
blue.
adsorbents
exhibit
a
significant
level
selectivity
in
capacity
to
adsorb
green
comparison
other
dyes.
next
parameter
was
evaluated
as
Based
on
Langmuir
isotherm
model,
calculated
maximum
capacities
NiAl-Sp
ZnAl-Sp
determined
be
478.190
mg/g
(pH
=
4,
50
°C
30
min)
123.457
min),
respectively.
main
processes
encompassed
not
only
electrostatic
interactions
but
also
hydrogen
bonding
π-π
involving
dye
amino,
hydroxyl,
carboxyl
functional
groups
derived
from
platensis.
enhances
group
LDH.
findings
this
indicate
that
composite
demonstrated
stability
sorbent
green.
Furthermore,
it
observed
could
utilized
up
four
cycles,
there
noticeable
decrease
its
capability
over
time.
revealed
synthesized
high
efficacy
effluent.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(2), P. 418 - 418
Published: Jan. 15, 2024
In
the
present
investigation
of
copper
ferrite,
a
CuFe2O4
nanocomposite
adsorbent
was
synthesized
using
sol–gel
method,
and
its
relevance
in
adsorptive
elimination
toxic
Congo
red
(CR)
aqueous
phase
examined.
A
variety
structural
methods
were
used
to
analyze
nanocomposite;
as-synthesized
had
agglomerated
clusters
with
porous,
irregular,
rough
surface
that
could
be
seen
FE-SEM,
it
also
contained
carbon
(23.47%),
oxygen
(44.31%),
(10.21%),
iron
(22.01%)
elemental
composition
by
weight.
Experiments
designed
achieve
most
optimized
system
through
utilization
central
composite
design
(CCD).
The
highest
uptake
CR
dye
at
equilibrium
occurred
when
initial
pH
value
5.5,
adsorbate
concentration
125
mg/L,
dosage
3.5
g/L.
Kinetic
studies
conducted,
they
showed
adsorption
process
followed
pseudo-second-order
(PSO)
model
(regression
coefficient,
R2
=
0.9998),
suggesting
chemisorption
mechanism,
overall
reaction
rate
governed
both
film
pore
diffusion
molecules.
which
molecules
taken
up
onto
particle
revealed
interactions
involving
electrostatic
forces,
hydrogen
bonding,
filling.
According
isotherm
studies,
data
exhibited
strong
agreement
Langmuir
(R2
0.9989),
demonstrating
maximum
monolayer
capacity
(qmax)
64.72
mg/g
6
302
K.
Considering
obtained
negative
ΔG
positive
ΔHads
ΔSads
values
across
all
tested
temperatures
thermodynamic
investigations,
confirmed
characterized
as
endothermic,
spontaneous,
feasible,
an
increased
level
randomness.
developed
this
study
is
anticipated
find
extensive
application
effluent
treatment,
owing
excellent
reusability
remarkable
capability
effectively
remove
comparison
other
adsorbents.
