Journal of Polymer Engineering,
Год журнала:
2024,
Номер
44(5), С. 354 - 363
Опубликована: Апрель 1, 2024
Abstract
This
study
presents
the
synthesis
of
a
magnetic
sodium
alginate
hydrogel
for
efficient
adsorption
heavy
metal
ions.
The
hydrogel,
composed
alginate,
demonstrates
network
structure
that
facilitates
effective
ion
adsorption.
Utilizing
forces,
can
be
easily
separated
and
regenerated,
exhibiting
excellent
recyclability.
Compared
to
traditional
adsorbents,
shows
significantly
improved
capacity,
particularly
Pb
2+
At
pH
ca.
4
an
time
120
min,
achieves
maximum
capacity
137
mg/g
,
with
rate
83
%.
kinetics
follow
pseudo-second-order
equation,
while
thermodynamically,
process
adheres
Freundlich
model,
positively
correlated
temperature
concentration.
negative
Δ
H
value
indicates
exothermic
spontaneous
process.
In
competitive
experiments,
strong
selective
towards
.
It
also
exhibits
reusability,
maintaining
80
%
after
10
cycles.
composite
material
possesses
favorable
recyclability
convenient
separation
properties,
offering
significant
potential
in
various
applications.
RSC Advances,
Год журнала:
2024,
Номер
14(31), С. 22266 - 22279
Опубликована: Янв. 1, 2024
A
novel
eco-friendly
adsorbent
was
fabricated
by
mixing
mushroom-derived
cadmium
sulfide
and
polyethyleneimine-functionalized
biochar
that
from
coffee
waste
with
a
chitosan
biopolymer.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
319, С. 100449 - 100449
Опубликована: Май 31, 2024
The
efficient
removal
of
Cr(VI)
from
the
contaminated
wastewater
is
an
essential
issue
before
discharge
in
a
watercourse.
Adsorption
viewed
as
most
promising
technology
for
because
its
distinct
advantages,
including
low
operating
cost,
ease
operation,
design
simplicity,
maintenance,
and
high
efficiency.
Chitosan
natural
biopolymer
with
amine
(-NH2)
hydroxyl
(-OH)
groups
structure.
non-toxic,
biodegradable,
biocompatible,
hydrophilic,
anti-bacterial
nature
chitosan
nanoparticles
makes
it
ideal
bio-sorbent
heavy
metal
ions
wastewater.
Weak
mechanical
strength,
separation
difficulties
aqueous
phase,
recyclability,
reusability
are
potential
limitations
utilizing
particles
adsorbent
There
increasing
attention
fabricating
magnetic
(M-Ch-NPs)
surface
modification
using
magnetite
to
enhance
reusablity
minimize
phase.
present
study
reviews
various
fabrication
methods
utilization,
environmental
impacts,
challenges
M-Ch-NPs
