International Journal of Environmental & Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 16
Published: May 3, 2024
In
this
paper,
a
kind
of
cellulose
aerogel
(HRCNFs)
with
high
mechanical
robustness
and
durability
was
prepared
by
using
orange
peel
polyethylenimine,
it
used
for
high-efficiency
adsorption
Cu
(II).
Fourier
analysed
the
structure
morphology
HRCNFs
transform
infrared
spectroscopy
(FTIR)
scanning
electron
microscopy
(SEM),
pore
characteristics
materials
were
evaluated
BET.
The
capacity
as
adsorbent
to
remove
(II)
ions
from
aqueous
solution
further
studied.
maximum
167.21
mg/g.
Adsorption
is
mainly
single-layer
chemisorption
process.
Based
on
FTIR
BET
analysis,
mechanism
strong
surface
complexation
amino,
carboxyl,
hydroxyl
groups
Through
many
cycles,
retain
their
integrity
robustness.
Therefore,
synthesised
material
can
be
considered
promising
removal
polluted
water
bodies.
Separation and Purification Technology,
Journal Year:
2024,
Volume and Issue:
353, P. 128311 - 128311
Published: June 6, 2024
Heavy
metals
pose
a
significant
threat
to
human
health
and
ecological
security
due
their
high
toxicity,
mobility,
persistence
in
the
environment.
Herein,
synthesis
of
novel
cellulose
nanofiber-based
aerogel
using
non-toxic
biopolymers
such
as
sodium
alginate
polyglutamic
acid
eradicate
lead,
zinc,
copper
from
water.
The
physical
characterisation
adsorption
performance
aerogels
were
evaluated
monolithic
bead
configurations.
study
revealed
superior
for
beads
compared
configuration.
achieved
maximum
capacity
171.7
mg/g,
100
mg/g
142.0
respectively.
exhibited
specific
surface
area
aerogels.
presence
functional
groups
including
carboxyl,
amino
hydroxyl
on
likely
facilitated
through
coordinate
bond
formation
electrostatic
interactions.
Density
Functional
Theory
calculations
supported
role
oxygen
nitrogen
containing
capturing
heavy
metal
ions.
displayed
remarkable
regeneration
ability
reused
20
times
without
any
reduction
indicating
its
potential
sustainable
adsorbent
removal
