RSC Advances,
Год журнала:
2023,
Номер
13(10), С. 6954 - 6965
Опубликована: Янв. 1, 2023
The
current
work
describes
the
synthesis
of
carbonaceous
composites
via
pyrolysis,
based
on
CMF,
extracted
from
Alfa
fibers,
and
Moroccan
clay
ghassoul
(Gh),
for
potential
use
in
heavy
metal
removal
wastewater.
Following
synthesis,
(ca-Gh)
material
was
characterized
using
X-ray
fluorescence
(XRF),
Scanning
Electron
Microscopy
coupled
with
Energy
Dispersive
(SEM-EDX),
zeta-potential
Brunauer-Emmett-Teller
(BET).
then
used
as
an
adsorbent
cadmium
(Cd2+)
aqueous
solutions.
Studies
were
conducted
into
effect
dosage,
kinetic
time,
initial
concentration
Cd2+,
temperature
also
pH
effect.
Thermodynamic
tests
demonstrated
that
adsorption
equilibrium
attained
within
60
min
allowing
determination
capacity
studied
materials.
investigation
kinetics
reveals
all
data
could
be
fit
by
pseudo-second-order
model.
Langmuir
isotherm
model
might
fully
describe
isotherms.
experimental
maximum
found
to
20.6
mg
g-1
261.9
Gh
ca-Gh,
respectively.
thermodynamic
parameters
show
Cd2+
onto
investigated
is
spontaneous
endothermic.
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(2)
Опубликована: Янв. 14, 2025
ABSTRACT
With
the
continuous
development
of
industry,
issue
industrial
wastewater
emissions
is
increasing.
Adsorption,
as
an
effective
means
possessing
features
no
pollution,
high
efficiency,
and
easy
operation,
has
become
one
methods
to
treat
wastewater.
Fe
3
O
4
@polypyrrole@sulfamic
acid
(Fe
@PPy@SA)
composite
successfully
prepare
by
hydrothermal
method,
in
situ
polymerization,
modification.
Its
adsorption
behaviors
on
MG,
MB,
CV,
RhB
are
investigated
UV–Vis,
impacts
temperature,
dye
concentration,
contact
time
between
dyes
efficiency
researched.
The
kinetics
isotherms
exhibit
that
these
four
more
accordance
with
pseudo‐second‐order
kinetic
model
Langmuir
isotherm
model,
diffusion
affected
through
combined
effect
intraparticle
Boyd
membrane
diffusion,
thermodynamic
studies
display
all
spontaneous
heat
absorption
behaviors.
prepared
@PPy@SA
efficient
adsorbent
field
applications.
Heliyon,
Год журнала:
2023,
Номер
9(9), С. e19167 - e19167
Опубликована: Авг. 16, 2023
The
frequent
use
of
an
industrial
dye
such
as
malachite
green
(MG)
has
caused
major
water
body
deterioration
and
is
one
the
most
pressing
global
challenges,
demanding
effective
treatment
techniques.
To
solve
these
issues,
a
simplistic
method
was
developed
to
synthesize
zinc-tungstate
(ZnWO4)
nanoparticles
also
dope
surface
matrix
ZnWO4
using
nonmetals
boron
(B),
carbon
(C),
nitrogen
(N)
at
different
ratios
for
enhanced
MG
removal
from
wastewater.
prepared
nanomaterials
were
characterized
by
methods
crystal
structure
composition,
properties,
morphology,
microstructures,
functional
groups,
elemental
oxidation
states.
BET
analysis
revealed
mesoporous
with
areas
30.740
m2/g
ZnWO4,
38.513
ZnWO4@BCN,
37.368
ZnWO4@BCN/B,
39.325
ZnWO4@BCN/C,
45.436
ZnWO4@BCN/N
nanocomposites.
best
accomplished
pH
(8),
contact
period
(50
min),
nanoadsorbent
dose
(0.8
g/L),
initial
concentration
(20
mg/L),
temperature
(303
K).
maximum
adsorption
capacities
towards
218.645
251.758
mg/g,
respectively.
At
equilibrium,
Freundlich
isotherm
pseudo-second-order
kinetic
models
fits
experimental
data
on
both
nanoadsorbents.
After
eight
cycles
desorption,
found
be
good
removing
MG,
efficiencies
71.00
74.20%,
Thermodynamic
investigations
further
validated
spontaneity
endothermic
nature
process.
All
study
findings
confirm
nanoadsorbents
exceptional
capability
economic
feasibility
dye.
RSC Advances,
Год журнала:
2023,
Номер
13(10), С. 6954 - 6965
Опубликована: Янв. 1, 2023
The
current
work
describes
the
synthesis
of
carbonaceous
composites
via
pyrolysis,
based
on
CMF,
extracted
from
Alfa
fibers,
and
Moroccan
clay
ghassoul
(Gh),
for
potential
use
in
heavy
metal
removal
wastewater.
Following
synthesis,
(ca-Gh)
material
was
characterized
using
X-ray
fluorescence
(XRF),
Scanning
Electron
Microscopy
coupled
with
Energy
Dispersive
(SEM-EDX),
zeta-potential
Brunauer-Emmett-Teller
(BET).
then
used
as
an
adsorbent
cadmium
(Cd2+)
aqueous
solutions.
Studies
were
conducted
into
effect
dosage,
kinetic
time,
initial
concentration
Cd2+,
temperature
also
pH
effect.
Thermodynamic
tests
demonstrated
that
adsorption
equilibrium
attained
within
60
min
allowing
determination
capacity
studied
materials.
investigation
kinetics
reveals
all
data
could
be
fit
by
pseudo-second-order
model.
Langmuir
isotherm
model
might
fully
describe
isotherms.
experimental
maximum
found
to
20.6
mg
g-1
261.9
Gh
ca-Gh,
respectively.
thermodynamic
parameters
show
Cd2+
onto
investigated
is
spontaneous
endothermic.
