Advanced Membranes,
Год журнала:
2024,
Номер
4, С. 100093 - 100093
Опубликована: Янв. 1, 2024
The
prevalent
adoption
of
lithium-ion
batteries
(LIBs)
has
sparked
a
surge
in
interest
regarding
lithium
extraction,
particularly
from
lithium-rich
brines.
As
some
brine
sources
contain
higher
ratio
Mg2+
ions
to
Li
+
ions,
Mg2+/Li+
separation
becomes
essential
improve
extraction
efficiency.
Multiple
membrane
technologies
were
utilized
this
application,
including
electrodialysis,
capacitive
deionization,
and
nanofiltration
(NF).
Among
the
different
technologies,
NF
membranes
fabricated
through
interfacial
polymerization
have
gained
interdisciplinary
attention
due
their
ease
modification,
relative
simplicity,
cost-effectiveness.
Despite
that,
there
are
still
multiple
challenges
Mg2+/Li
such
as
high
(MLR),
trade-off
between
factor
pure
water
permeance
(PWP),
fouling,
optimal
working
pH.
To
address
these
challenges,
review
summarizes
nanofillers
used
enhance
performance,
carbon-based
nanofillers,
polyphenols,
polyhedral
oligomeric
silsesquioxane
(POSS).
Additionally,
categorized
based
on
modification
polymerization,
types
aqueous
monomer,
addition
phase,
substrate,
an
extra
layer
within
membrane,
other
modifications.
Lastly,
perspectives
factors
that
affect
performance
surface
zeta
potential,
pore
size,
hydrophilicity,
feed
pH,
MLR
will
be
discussed.
It
is
anticipated
comprehensive
can
provide
insights
into
current
progress
various
strategies
drive
future
research
development
using
technology
among
community.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(48)
Опубликована: Авг. 15, 2024
Abstract
Membranes
facilitate
scalable
and
continuous
lithium
concentration
from
hypersaline
salt
lakes
battery
leachates.
Conventional
nanofiltration
(NF)
membranes,
however,
exhibit
poor
monovalent
selectivity
in
high‐salinity
environments
due
to
weakened
exclusion
mechanisms.
This
study
examines
polyamide
NF
membranes
coated
with
polyelectrolytes
enriched
ammonium
groups
maintain
high
cation
conditions.
Over
8000
ion
rejection
measurements
are
recorded
using
lake
brines
The
experiments
exemplify
the
membrane's
ability
reduce
magnesium
concentrations
0.14%
elevate
purity
98%
leachates,
a
single
filtration
stage.
is
retained
after
12
weeks
acidic
Molecular
dynamics
analyses
reveal
that
create
an
electrostatic
barrier
at
low
pH,
selectively
hindering
multivalent
transport.
corroborated
by
Coulombic
attraction
between
cations
carboxylate
groups,
along
repulsive
groups.
Despite
14.7%
increase
specific
energy,
two‐stage
system
for
recovery
significantly
reduces
permeate
composition
0.031%
Chilean
brines.
For
NMC
achieve
exceeding
99.5%,
yielding
enhanced
quality
minor
increases
energy
demands.
