Molecules,
Год журнала:
2024,
Номер
29(20), С. 4934 - 4934
Опубликована: Окт. 18, 2024
Porous
carbon
with
a
high
surface
area
and
controllable
pore
size
is
needed
for
energy
storage.
It
still
significant
challenge
to
produce
porous
in
an
economical
way.
Nitrogen-doped
(N-PC)
was
prepared
through
carbonization
of
mixture
waste
PET-derived
metal–organic
frameworks
(MOFs)
ammonium.
The
obtained
N-PC
exhibits
large
controlled
size.
When
utilized
as
electrode
material
supercapacitors,
the
specific
capacitance
224
F
g−1,
significantly
surpassing
that
commercial
activated
(AC),
which
has
111
g−1.
In
subsequent
capacitive
deionization
(CDI)
tests,
demonstrated
maximum
salt
adsorption
capacity
19.9
mg
g−1
at
1.2
V
NaCl
electrolyte
(0.5
g
L−1),
increased
24.7
1.4
V.
also
exhibited
superior
regeneration.
present
work
not
only
presents
potential
approach
develop
cost-effective
electrodes
seawater
purification
but
paves
way
recycling
plastics
into
value-added
products.
Nano Letters,
Год журнала:
2024,
Номер
24(31), С. 9477 - 9486
Опубликована: Июль 29, 2024
Capacitive
deionization
(CDI),
renowned
for
its
eco-friendly
and
low-energy
approach
to
water
treatment,
encounters
challenges
in
achieving
optimal
efficiency
cycle
stability
despite
recent
advancements.
In
this
study,
the
CDI
electrodes
were
crafted
with
multilevel
pore
structures
using
modified
cellulose
(MCNF)
porous
activated
MXene
(PAMX),
aiming
impact
of
surface
modification
on
adsorption
efficiency,
stability,
overall
performance.
The
experimental
results
demonstrated
superiority
electrode,
specifically
formulation
integrating
sulfonic
acid-treated
PAMX
(SCNF@PAMX).
This
configuration
exhibited
remarkably
a
higher
desalination
rate
(3.91
mg·g–1·min–1)
enhanced
capacity
(31.24
mg·g–1),
cycling
performance
exceeding
90%.
Density
functional
theory
calculations
underscored
formidable
energy
SCNF
Na+
(2.15
eV),
surpassing
that
other
electrodes.
enhancement
through
charge
modification,
altering
electrostatic
adsorption,
lays
solid
foundation
advancing
more
efficient
durable
seawater
technologies.
