Bulletin of the Korean Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
To
develop
an
adsorbent
for
Li
+
recovery
from
seawater
and/or
spent
lithium
batteries,
a
benzo‐12‐crown‐4
ether
(B12C4)
moiety
was
immobilized
with
silica
(immobilization
yield:
0.70
meq
g
−1
).
Compared
to
pure
silica,
the
resulting
(FB12C4‐SG)
had
reduced
Brunauer–Emmett–Teller
surface
area
(500
vs.
180
m
2
)
and
pore
volume
(0.75
0.26
cm
3
The
adsorption
reached
equilibrium
at
31
mg
after
h
(1000
ppm
solution).
behavior
well
explained
by
pseudo‐second‐order
kinetics
Langmuir
model
(maximum
capacity:
33
material
exhibited
/Na
selectivity
factor
of
4.2
high
chemical
stability
under
acidic
regeneration
conditions
(1.0
N
HCl
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(22), P. 1789 - 1789
Published: Nov. 7, 2024
Functionalized
nanomaterials
with
surface-active
groups
have
garnered
significant
research
interest
due
to
their
wide-ranging
applications,
particularly
in
water
treatment
for
removing
various
contaminants.
This
study
focuses
on
developing
a
novel,
multi-functional
nanobiosorbent
by
synthesizing
nanosized
biochar
from
artichoke
leaves
(NBAL)
and
molybdic
acid
(MA).
The
resulting
nanobiosorbent,
MA@NBAL,
is
produced
through
microwave-irradiation
process,
offering
promising
material
enhanced
environmental
remediation.
characteristics
of
assembled
MA@NBAL
were
evaluated
SEM-EDX,
XPS,
TGA,
FT-IR,
zeta
potential
detection.
size
particles
ranged
18.7
23.7
nm.
At
the
same
time,
EDX
analysis
denoted
existence
several
major
elements
related
percentage
values
carbon
(52.9%),
oxygen
(27.6%),
molybdenum
(8.8%),
nitrogen
(4.5%)
nanobiosorbent.
effectiveness
Hg(II)
ions
was
monitored
via
batch
method.
optimized
maximum
removal
capacity
onto
established
at
pH
6.0,
30.0
min
equilibrium
20
mg
providing
1444.25
mg/g
10.0
mmol/L
concentration
Hg(II).
Kinetic
studies
revealed
that
adsorption
process
followed
pseudo-second-order
model,
R
Bulletin of the Korean Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 19, 2024
Abstract
To
develop
an
adsorbent
for
Li
+
recovery
from
seawater
and/or
spent
lithium
batteries,
a
benzo‐12‐crown‐4
ether
(B12C4)
moiety
was
immobilized
with
silica
(immobilization
yield:
0.70
meq
g
−1
).
Compared
to
pure
silica,
the
resulting
(FB12C4‐SG)
had
reduced
Brunauer–Emmett–Teller
surface
area
(500
vs.
180
m
2
)
and
pore
volume
(0.75
0.26
cm
3
The
adsorption
reached
equilibrium
at
31
mg
after
h
(1000
ppm
solution).
behavior
well
explained
by
pseudo‐second‐order
kinetics
Langmuir
model
(maximum
capacity:
33
material
exhibited
/Na
selectivity
factor
of
4.2
high
chemical
stability
under
acidic
regeneration
conditions
(1.0
N
HCl
