Activated Biochar from Pineapple Crown Biomass: A High-Efficiency Adsorbent for Organic Dye Removal
Sustainability,
Journal Year:
2024,
Volume and Issue:
17(1), P. 99 - 99
Published: Dec. 27, 2024
Renowned
for
its
versatility
in
environmental
applications,
biochar
exhibits
substantial
potential
to
enhance
anaerobic
digestion,
facilitate
carbon
sequestration,
and
improve
water
treatment
through
highly
efficient
adsorption
mechanisms.
This
study
focuses
on
derived
from
pineapple
crown
biomass,
produced
slow
pyrolysis,
efficiency
removing
organic
dyes
contaminated
water.
The
structural,
morphological,
surface
properties
of
both
chemically
activated
samples
were
comprehensively
characterized
using
a
range
techniques,
including
XRD,
FTIR,
XPS,
BET
area
analysis,
SEM
microscopy.
performance
was
evaluated
methylene
blue
(MB),
rhodamine
B
(RhB),
malachite
green
(MG)
as
model
contaminants,
with
particular
emphasis
the
contact
time
dye
removal
efficiency.
Initial
results
showed
rates
10.8%,
37.5%,
88.4%
RhB,
MB,
MG,
respectively.
Notably,
chemical
activation
significantly
enhanced
efficiency,
achieving
complete
(100%)
all
tested
dyes.
Complete
MB
MG
occurred
within
9
min,
indicating
rapid
kinetics.
Adsorption
data
fit
well
pseudo-second-order
kinetics
(R2
=
0.9748–0.9999),
Langmuir
isotherm
0.9770–0.9998)
suggested
monolayer
interactions
between
biochar.
intraparticle
diffusion
further
clarified
These
findings
demonstrate
efficacy
highlight
biomass
remediation.
Language: Английский
Synthesis of a New Composite Material Derived from Cherry Stones and Sodium Alginate—Application to the Adsorption of Methylene Blue from Aqueous Solution: Process Parameter Optimization, Kinetic Study, Equilibrium Isotherms, and Reusability
Journal of Composites Science,
Journal Year:
2024,
Volume and Issue:
8(10), P. 402 - 402
Published: Oct. 3, 2024
Purifying
polluted
water
is
becoming
a
crucial
concern
to
meet
quantity
and
quality
demands
as
well
ensure
the
resource’s
sustainability.
In
this
study,
new
material
was
prepared
from
cherry
stone
powder
sodium
alginate,
its
capacity
remove
methylene
blue
(MB)
determined.
The
characterization
of
resulting
product,
performed
via
scanning
electron
microscopy
(SEM)
Fourier-transform
infrared
spectroscopy
(FTIR),
revealed
that
raw
considered
for
synthesis
successfully
embedded
in
polymeric
matrix.
impact
three
main
working
parameters
(pH
3–9,
adsorbent
dose
50–150
g/L,
contact
time
60–180
min)
on
retention
MB
evaluated
through
response
surface
methodology
with
Box–Behnken
design.
optimal
settings,
removal
efficiency
80.46%
maximum
sorption
0.3552
mg/g
were
recorded.
followed
pseudo-second-order
kinetic
suitably
described
by
Freundlich,
Khan,
Redlich–Peterson,
Sips
isotherm
models.
experimental
results
show
synthesized
composite
can
be
used
at
least
successive
cycles
adsorption.
From
these
findings,
it
concluded
use
cherry-stone-based
environmentally
friendly,
efficacious
contaminants
environment.
Language: Английский