Advanced Composites and Hybrid Materials,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: Jan. 11, 2025
Severely
polluting
wastewater
containing
heavy
metal
ions
has
become
a
pressing
issue.
To
address
the
current
shortcomings
of
natural
bentonite
(Bent)
and
carboxymethyl
cellulose
sodium
(CMC)
for
Cd(II)
adsorption,
this
study
developed
cellulose/bentonite
composite
adsorbent
(CMCMW-Bent)
via
microwave-assisted
synthesis
using
acrylic
acid
(AA)-modified
CMC
pretreated
(Bent),
was
used
to
remove
from
wastewater.
The
results
show
that
strong
interaction
between
AA
CMC,
which
successfully
entered
layer,
provided
excellent
structural
stability
abundant
adsorption
sites
process.
Meanwhile,
heating
enhanced
unique
structure
compared
traditional
with
aqueous
solution.
best
effect
occurred
at
pH
=
6–7,
maximum
capacity
44.76
mg/g
Cd(II).
isothermal
kinetic
models
demonstrate
process
followed
Langmuir
fitting
pseudo-second-order
equations.
thermodynamic
confirms
spontaneous
endothermic
chemical
This
provides
new
approach
obtaining
efficient
adsorbents.
