Polymers,
Journal Year:
2023,
Volume and Issue:
15(19), P. 3923 - 3923
Published: Sept. 28, 2023
In
this
work,
a
new
lignocellulosic
adsorbent
was
obtained
and
tested
for
crystal
violet
dye
removal
from
water.
The
material
hart’s-tongue
fern
(Asplenium
scolopendrium)
leaves
after
minimal
processing,
without
chemical
or
thermal
treatment.
surface
of
the
characterized
using
variety
techniques,
including
FTIR,
SEM,
color
analysis.
effect
various
factors
on
adsorption
capacity
then
investigated
discussed.
kinetic
equilibrium
studies
showed
that
general-order
model
Sips
isotherm
are
most
suitable
to
describe
process.
time
reached
20
min
maximum
calculated
value
224.2
(mg
g−1).
determined
values
thermodynamic
parameters
indicated
physical
as
main
mechanism
involved
in
Taguchi
method
used
optimize
conditions
identify
influential
controllable
factor,
which
pH.
ANOVA
(general
linear
model)
calculate
percentage
contribution
each
factor
efficiency.
Analysis
all
results
shows
very
inexpensive,
readily
available,
effective
removing
aqueous
solutions.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
320, P. 100585 - 100585
Published: July 9, 2024
Water
contamination
from
dyes
is
a
major
issue
that
needs
to
be
solved
effectively.
Addressing
this
issue,
the
study
aims
improve
adsorption
capacity
of
montmorillonite
(MMT)
by
its
modification
for
removing
methylene
blue
(MB)
dye.
Powder
XRD,
FTIR,
FESEM,
HRTEM,
BET,
and
XPS
were
employed
analyze
modified
materials.
Various
parameters
studied
optimize
efficiency
MMT.
To
enhance
removal
MMT
(70.05
±
0.16
%),
has
with
banana
peel
ash
extract
(BPAE)
which
achieved
maximum
MB
98.54
0.31
%
under
neutral
pH,
an
equilibrium
time
150
min,
initial
dye
concentration
120
mg/L,
adsorbent
dosage
1.4
g/L
at
ambient
temperature
(32
°C).
Among
isotherm
models,
Langmuir
model
showed
100
mg/g.
Experimental
data
fitted
well
Elovich
kinetic
model.
Reusability
was
efficient
up
third
cycle,
retaining
56.96
0.39
efficiency.
Journal of Dispersion Science and Technology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 20
Published: Jan. 11, 2025
This
study
deals
with
the
synthesis
of
a
new
Organo-Kaolinite
material
containing
sulfonate
groups
by
grafting
an
anionic
surfactant,
sodium
dodecylbenzene
(SDBS),
onto
surface
Algerian
Kaolinite
DD3
for
use
in
removal
textile
dye
(Methylene
Blue,
MB).
The
investigation
kinetics
adsorption
process
is
accordance
pseudo-second-order
model,
and
isotherm
data
are
Langmuir
model
two
materials,
SDBS-DD3.
A
comparative
analysis
between
SDBS-DD3
showed
that
despite
decrease
BET
area
after
modification
(from
68
m2/g
to
46
m2/g),
amount
absorbed
was
93.8
±
0.9
mg/g
compared
44.5
0.2
DD3.
Adsorption
experiments
on
real
wastewater
effluents
significant
reduction
effluent
pollutants.
In
fact,
during
first
2
min
experiment,
chemical
oxygen
demand
(COD)
reduced
94%.
More
specifically,
COD
value
untreated
effluent,
which
initially
304
mg/L,
29
mg/L.
Journal of environmental chemical engineering,
Journal Year:
2024,
Volume and Issue:
12(3), P. 112650 - 112650
Published: March 30, 2024
In
literature,
mistakes
and
inconsistencies
in
evaluation
of
the
adsorption
equilibrium,
kinetics,
thermodynamics
pollutants
removal
often
exist.
Here,
we
review
these
propose
a
standardized
methodology,
with
focus
on
polyaniline
(PANI)-based
adsorbents
to
correctly
determine
equilibrium
data,
kinetic
rates,
time,
capacity.
Removal
aqueous
by
PANI-based
through
well-designed
experiments
predominantly
involves
monolayer
chemisorption.
The
nature
adsorption,
whether
heterogeneous
or
homogeneous,
is
contingent
upon
morphological
characteristics
distribution
functional
groups
adsorbents.
literature
reflects
multitude
complexities
implementation
subsequent
analysis
results.
Researchers
have
attempted
address
complexities,
yet
variations
findings
remain
due
diverse
experimental
conditions
applied.
This
study
critically
examines
existing
methodologies
their
develop
distinctive
approach
for
rational
design,
meticulous
sampling,
accurate
calculations.
Controversial
descriptions
regarding
kinetics
are
scrutinized
scientifically
reasonable
presented.
Finally,
main
steps
determining
mechanisms
via
physiochemical
studies
recommended.
contributes
insightful
perspectives
field
offering
more
robust
methodology
conduct
interpret
results,
thereby
enhancing
reliability
comparability
adsorption.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
317, P. 100292 - 100292
Published: Jan. 1, 2024
The
adsorptive
properties
of
the
Erionyl
Red
(ER)
dye
on
bentonite
(B)
intercalated
with
cetyltrimethylammonium
bromide
(HDTMA-B)
were
investigated
using
experimental
and
statistical
physics
methods.
was
then
taken
up
by
from
a
real
water
sample.
After
intercalation,
X-ray
diffraction
analysis
indicates
an
increase
in
HDTMA-B
basal
spacing
to
15.2
Ả.
Scanning
electron
microscopy
images
show
formation
large
particles
many
cavities.
results
revealed
that
material
had
high
adsorb
organic
molecules
(greater
than
99%).
Langmuir-Freundlich
model,
described
isotherms,
whereas
second-order
model
better
captured
kinetic
adsorption.
maximum
ER
uptake
observed
478
mg
g-1
at
temperature
328
K.
Reusability
nanocomposite
showed
stability,
over
five
cycles.
Thermodynamic
suggested
spontaneous
(negative
ΔG°)
endothermic
(positive
ΔH°)
adsorption
processes.
also
used
estimate
orientation
material.
oxygens
connected
structure
played
particular
important
role
mechanisms
dye.
This
study
combines
experiment
data
theoretical
approach
provide
new
explanation
for
mechanism.
removal
dyes
wastewater,
red,
is
vital
protection
environment
public
health.
Nanocomposite
appears
be
effective,
durable,
environmentally
friendly
adsorbent
red
synthetic
solutions
wastewater.
Gels,
Journal Year:
2024,
Volume and Issue:
10(3), P. 208 - 208
Published: March 19, 2024
A
bimetallic
organic
gel
(MOG-Fe/Al)
was
synthesized
through
the
solvothermal
method.
The
state
of
product
obtained
under
optimized
formation
conditions
is
sufficient
to
carry
2
g
weight
for
a
long
time.
Scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD),
Fourier
transform
infrared
(FT-IR)
spectroscopy,
Brunauer–Emmett–Teller
(BET)
technique,
and
photoelectron
spectroscopy
(XPS)
analysis
confirmed
structures
morphologies
materials.
MOG-Fe/Al,
with
good
stability,
excellent
durability,
wide
applicability,
exhibited
efficient
MO
adsorption
capacity
as
high
335.88
mg/g
at
25
°C.
Adsorption-influencing
factors
including
solution
pH,
contact
time,
temperature
were
investigated.
performance
better
than
that
monometallic
gels
(MOG-Fe
MOG-Al),
its
processes
in
accordance
pseudo-second-order
kinetic
Langmuir
isothermal
models.
MOG-Fe/Al
due
surface
structure,
pore
volume,
π-π
interactions,
hydrogen
bonds,
electrostatic
interactions.