Functionalization of biochar using SDS/SAP nanomicelles enhanced its immobilization capacity for dyes and heavy metals in water
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 28, 2025
To
enhance
the
adsorption
capacity
of
biochar
(BC),
herein
a
novel
multifunction
modified
(SDMBC)
was
prepared
by
directly
crosslinking
nanomicelle
sodium
dodecyl
sulfate/sapindus-saponin
(SDS/SAP)
composite
system
onto
BC
through
simple,
environmental
friendly
approach.
Result
showed
that
performance
SDMBC
has
been
greatly
improved,
compared
with
or
using
alone
SDS
and
SAP,
ability
increased
48.83%,
29.50%,
36.44%,
respectively,
best
effect
appeared
when
concentration
SAP
to
0.8
CMC.
exhibited
high
abilities
130.23,
108.43,
277.09
125.27,
112.78
mg/g
for
heavy
metal
ions
lead
Pb(II),
Cadmium
Cd(II)
organic
pollutants
different
chemical
properties
bisphenol
A(BPA),
Methylene
blue
(MB),
P-nitrophenol
(PNP),
higher
than
most
previously
reported
adsorbents,
importantly,
can
still
efficient
removal
capabilities
even
in
binary
competition.
Subsequently,
characterized
Fourier
Transform
infrared
spectroscopy
(FT-IR),
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
Zeta
potential
(Zeta),
it
found
more
layered
structure,
richer
functional
groups
amorphous
structure
BC,
which
are
closely
related
improving
its
capacity.
The
behavior
MB
show
process
be
spontaneous,
propitious,
endothermic,
isotherms
fitted
Freundlich
models
well,
pseudo-second-order
describes
kinetics
adsorption,
suggesting
is
multi-layer
adsorption.
little
affected
ionic
strength
coexisting
substances,
could
remained
rate
over
wide
pH
range,
keep
rates
after
5
reuses.
Based
on
FT-IR
analysis,
plausible
mechanism
proposed,
including
hydrogen
bond,
electrostatic
attraction
π-π
bonding.
Cost
analysis
manifests
efficiency
cheap
eco-adsorbents
commercial
activated
carbon,
dosage
required
99%
fixed
amount
volumes
effluent
predicted.
Seven
machine
learning
(ML)
were
used
predict
(60
mg/L)
SDMBC,
Shapley
Additive
Explanations
(SHAP)
model
interpretation.
Finding
Extreme
Gradient
Boosting
(XGBoost)
performance,
order
feature
importance
as
time>
Ratio>
pH>
concentration>
temperature.
Thus,
new
eco-adsorbents,
effectively
remove
various
types
pollutants,
great
application
sewage
treatment,
while
accurate
ML
prediction
presented
valuable
advice
designing
adsorbents
optimization
operating
conditions
future.
Язык: Английский
Smart nanocomposite of carbon quantum dots in double hydrogel (carboxymethyl cellulose/chitosan) for effectively adsorb and remove diquat herbicide: Characterization, thermodynamics, isotherms, kinetics, and optimizing through Box-Behnken Design
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
unknown, С. 142806 - 142806
Опубликована: Апрель 1, 2025
Язык: Английский