Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(9), P. 4374 - 4399
Published: Jan. 1, 2024
This
review
details
the
design
and
creation
of
ultrathin
polyamide
membranes
with
significant
enhancement
in
water
permeance
along
limitations
potential
strategies
to
empower
their
efficacy
ionic
molecular
separations.
Advanced Membranes,
Journal Year:
2022,
Volume and Issue:
2, P. 100032 - 100032
Published: Jan. 1, 2022
Mono-/multivalent
ion-selective
separation
has
become
a
common
requirement
at
the
water-energy
nexus,
including
energy
storage
and
conversion,
water
purification,
sustainable
industrial
processes.
In
this
review,
we
summarize
theory
of
ion
transport
through
membrane
mechanisms
selective
in
nanofiltration
(NF)
briefly.
Recent
advancing
improving
mono-/multivalent
selectivity
thin-film
composite
(TFC)
NF
via
size
sieving
enhancement,
electric
charge
property
regulation
co-enhancement
properties
are
concluded.
What's
more,
three
material
classes—surface
assembly
materials,
nanomaterials
biomimetic
channels
highlighted
as
candidates
for
preparation
membranes.
Lastly,
design
directions
critical
challenges
developing
high-selectivity
membranes
based
on
provided.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Feb. 27, 2023
Fast
permeation
and
effective
solute-solute
separation
provide
the
opportunities
for
sustainable
water
treatment,
but
they
are
hindered
by
ineffective
membranes.
We
present
here
construction
of
a
nanofiltration
membrane
with
fast
permeation,
high
rejection,
precise
Cl-/SO42-
spatial
temporal
control
interfacial
polymerization
via
graphitic
carbon
nitride
(g-C3N4).
The
g-C3N4
nanosheet
binds
preferentially
piperazine
tiles
water-hexane
interface
as
revealed
molecular
dynamics
studies,
thus
lowering
diffusion
rate
PIP
one
order
magnitude
restricting
its
pathways
towards
hexane
phase.
As
result,
membranes
nanoscale
ordered
hollow
structure
created.
Transport
mechanism
across
is
clarified
using
computational
fluid
simulation.
Increased
surface
area,
lower
thickness,
identified
key
contributors
to
permeance
105
L
m2·h-1·bar-1
Na2SO4
rejection
99.4%
selectivity
130,
which
superior
state-of-the-art
NF
Our
approach
tuning
microstructure
enables
development
ultra-permeability
excellent
ion-ion
separation,
purification,
desalination,
organics
removal.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(11), P. 4537 - 4582
Published: Jan. 1, 2022
Water
channels
are
one
of
the
key
pillars
driving
development
next-generation
desalination
and
water
treatment
membranes.
Over
past
two
decades,
rise
nanotechnology
has
brought
together
an
abundance
multifunctional
nanochannels
that
poised
to
reinvent
separation
membranes
with
performances
exceeding
those
state-of-the-art
polymeric
within
water-energy
nexus.
Today,
these
can
be
broadly
categorized
into
biological,
biomimetic
synthetic,
owing
their
different
natures,
physicochemical
properties
methods
for
membrane
nanoarchitectonics.
Furthermore,
against
backdrop
mechanisms,
types
nanochannel
exhibit
unique
merits
limitations,
which
determine
usability
suitability
designs.
Herein,
this
review
outlines
progress
a
comprehensive
amount
nanochannels,
include
aquaporins,
pillar[5]arenes,
I-quartets,
nanotubes
porins,
graphene-based
materials,
metal-
covalent-organic
frameworks,
porous
organic
cages,
MoS2,
MXenes,
offering
comparative
glimpse
where
potential
lies.
First,
we
map
out
background
by
looking
evolution
over
years,
before
discussing
latest
developments
focusing
on
intrinsic
transport
from
chemistry
standpoint.
Next,
put
perspective
fabrication
nanoarchitecture
high-performance
nanochannel-enabled
membranes,
especially
distinct
differences
each
type
how
they
leveraged
unlock
as-promised
high
in
current
mainstream
Lastly,
critically
evaluate
recent
findings
provide
holistic
qualitative
assessment
respect
attributes
most
strongly
valued
engineering,
upcoming
challenges
share
our
perspectives
researchers
pathing
future
directions
coming
age
channels.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Sept. 7, 2023
Abstract
Current
polyamide
lithium
extraction
nanofiltration
membranes
are
susceptible
to
chlorine
degradation
and/or
low
permeance,
two
problems
that
hard
reconcile.
Here
we
simultaneously
circumvented
these
by
designing
a
quaternized-spiro
piperazine
monomer
and
translating
its
beneficial
properties
into
large-area
(1
×
2
m
)
via
interfacial
polymerization
with
trimesoyl
chloride.
The
quaternary
ammonium
spiral
conformation
of
the
confer
more
positive
charge
free
volume
membrane,
leading
one
highest
permeance
(~22
L
−2
h
−1
bar
compared
state-of-the-art
Mg
2+
/Li
+
membranes.
Meanwhile,
membrane
structures
resistant
as
amine–acyl
bonding
contains
no
sensitive
N-H
group.
Thus
high
performance
is
stable
versus
400-h
immersion
in
sodium
hypochlorite,
while
control
degraded
readily.
Molecular
simulations
show
resistance,
which
were
reproducible
at
module
level,
arise
from
secondary
amine
monomer.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(9)
Published: Dec. 25, 2022
Abstract
Nanofiltration
membrane
plays
an
increasingly
important
role
in
many
industrial
applications,
such
as
water
treatment
and
resource
recovery.
The
performance
of
the
smart
nanofiltration
is
largely
controlled
by
pore
size,
Donnan
effect,
surface
wettability,
which
are
determined
function
stimuli‐responsive
components.
Smart
membranes,
contain
components,
capable
changing
their
physical
chemical
properties
response
to
changes
environment
so
that
microstructure
will
have
more
efficient
performances
broader
application
prospects
than
current
traditional
membranes.
Herein,
preparation
methods
membranes
described
they
systematically
classified
accordingly
mechanisms.
Moreover,
latest
progress
main
mechanism
each
stimuli‐response
type
through
relevant
examples
discussed
summarized.
Finally,
this
review
provides
new
insights
into
remaining
challenges
future
directions
Fueled
advances
chemistry
materials
science,
it
expected
build
a
platform
for
benefit
mankind.
Materials Horizons,
Journal Year:
2022,
Volume and Issue:
9(10), P. 2496 - 2517
Published: Jan. 1, 2022
The
scarcity
of
clean
water
has
become
a
global
environmental
problem
which
constrains
the
development
public
health,
economy,
and
sustainability.
In
recent
years,
natural
polyphenols
have
drawn
increasing
interests
as
promising
platforms
towards
diverse
remediation
composites
devices,
owing
to
their
abundant
renewable
resource
in
nature,
highly
active
surface
chemistry,
multifunctionality.
This
review
aims
summarize
most
advances
highlights
polyphenol-based
composite
materials
(e.g.,
nanofibers,
membranes,
particles,
hydrogels)
for
remediation,
by
focusing
on
structural
functional
features,
well
diversified
applications
including
membrane
filtration,
solar
distillation,
adsorption,
advanced
oxidation
processes,
disinfection.
Finally,
future
challenges
this
field
are
also
prospected.
It
is
anticipated
that
will
provide
new
opportunities
other
kinds
naturally
occurring
molecules
purification
applications.