Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(25)
Published: Jan. 29, 2024
Abstract
Selectively
permeable
membranes
with
subnanosized
pores
show
potential
for
applications
in
saline
wastewater
treatment
and
resource
recovery.
Here,
a
novel
ionic
sieving
membrane
(ISM)
is
fabricated
via
reactive
layer‐by‐layer
assembly
of
reduced
porous
organic
cages,
providing
confined
the
entry
monovalent
ions
interception
divalent
ions.
The
ion
separation
performance
ISMs
can
be
tuned
by
varying
concentration
cages
during
assembly.
highly
ISM
featuring
surface
−52
mV
widely
distributed
aperture
(
µ
p
=
0.69
nm,
σ
1.37)
preferentially
permits
passage
Cl
−
over
SO
4
2−
,
resulting
remarkable
permeance
9.4
L
m
−2
h
−1
bar
/SO
selectivity
50.3.
However,
selective
−30
narrowly
0.66
1.27)
exhibits
superior
277.3
Li
+
/Mg
2+
64.7,
indicating
that
regular
pore
structure
plays
dominant
role
achieving
precise
mono‐/divalent
Moreover,
owing
to
acquired
excellent
selectivity,
first
time,
lithium
extraction
from
simulated
salt
lake
brine
achieved
two‐stage
nanofiltration
process
Mg
/Li
mass
ratio
40
0.3.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(9)
Published: Oct. 31, 2023
Abstract
Polyester
nanofiltration
membranes
highlight
beneficial
chlorine
resistance,
but
their
loose
structures
and
negative
charge
result
in
poor
cations
retention
precluding
advanced
use
separation.
This
work
designs
a
new
monomer
(TET)
containing
“hydroxyl‐ammonium”
entities
that
confer
dense
positive
to
polyester
membranes.
The
TET
undergoes
efficient
interfacial
polymerization
with
the
trimesoyl
chloride
(TMC)
monomer,
resultant
TET‐TMC
feature
one
of
lowest
molecular
weight
cut‐offs
(389
Da)
highest
zeta
potential
(4
mv,
pH:
7)
among
all
MgCl
2
rejection
membrane
is
95.5%,
significantly
higher
than
state‐of‐the‐art
(<50%).
Li
+
/Mg
2+
separation
performance
on
par
cutting‐edge
polyamide
membranes,
while
additionally,
stable
against
NaClO
though
readily
degrade.
Thus
first
for
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(22)
Published: April 2, 2024
The
ion
extraction
and
electro/photo
catalysis
are
promising
methods
to
address
environmental
energy
issues.
Covalent
organic
frameworks
(COFs)
a
class
of
template
construct
absorbents
catalysts
because
their
stable
frameworks,
high
surface
areas,
controllable
pore
environments,
well-defined
catalytic
sites.
Among
them,
ionic
COFs
as
unique
crystalline
porous
materials,
with
charges
in
the
or
along
walls,
have
shown
different
properties
resulting
performance
these
applications
those
from
charge-neutral
COFs.
In
this
review,
current
research
progress
based
on
for
conversion,
including
cationic/anionic
materials
is
reviewed
terms
synthesis
strategy,
modification
methods,
mechanisms
adsorption
catalysis,
well
applications.
Finally,
we
demonstrated
challenges
future
development
design
strategies
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(33)
Published: March 1, 2024
Abstract
The
demand
for
lithium
resources
is
growing
rapidly
due
to
the
continuous
development
of
lithium‐ion
battery,
which
plays
an
important
part
in
renewable
energy
industry.
Global
sources
are
ores
and
brine,
59%
distributed
saline
brine.
However,
significant
brine
have
not
been
fully
utilized.
electrochemical
deintercalation
method
(EDM)
extraction
from
a
promising
technique
because
its
environmental
friendliness,
high
selectivity,
cost‐effectiveness.
Nevertheless,
application
EDM
greatly
limited
by
easy
dissolution
electrode
materials
like
LiMn
2
O
4
cost
mass
production.
Also,
there
few
existing
review
articles
on
extraction.
To
address
this
gap,
provides
comprehensive
overview
current
methods
systematically
summarizes
technical
status
EDM,
pays
special
attention
preparation
modification
materials.
This
gives
new
insight
into
mechanism
design
strategy
evaluation
EDM.
