Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 6, 2024
Abstract
Surface
segregation
method,
as
an
in
situ
method
for
simultaneous
modification
of
membrane
external
surfaces
and
inner
pore
surfaces,
has
been
more
commonly
employed
to
fabricate
antifouling
membranes.
In
this
study,
dopamine
(DA)
with
self‐polymerization
bio‐adhesion
ability
is
chosen
a
surface
agent
polyvinylidene
fluoride
(PVDF)
oil‐in‐water
emulsions
separation
through
synergistically
regulating
phase
inversion,
DA,
poly‐dopamine
(PDA).
During
the
inversion
process,
DA
contacts
alkaline
coagulation
bath
trigger
then
PDA
proceeds
spontaneously.
The
addition
can
regulate
process
acquire
membranes
high
porosity,
result,
water
permeance
increased
from
134
538
L
m
−2
h
−1
bar
oil
rejection
higher
than
99.8%.
Because
hydrophilic
layer
on
leads
robust
hydration
layer,
exhibits
super‐oleophobicity
underwater
excellent
properties
recovery
ratio
99.4%.
This
study
may
open
new
route
preparing
by
using
small
molecules
agents.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 5, 2025
Silica
aerogel,
as
the
earliest
synthetic
and
commercially
available
one
among
all
known
aerogels,
holds
significant
value
in
fields
including
thermal
acoustic
insulation,
optics,
catalysis,
sorption,
etc.
However,
throughout
its
nearly
century-long
history,
influence
of
solvent
used
during
synthesis
on
properties
silica
aerogels
has
been
neglected,
resulting
inaccurate
ambiguous
performance
evaluation.
Herein,
we
have
uncovered
systematically
investigated
solvent-regulable
interfacial
groups
that
enable
on-demand
superhydrophobicity/superhydrophilicity
aerogels.
During
either
sol-gel
transition
or
exchange
process
both
required
for
aerogel
synthesis,
alteration
from
water
to
ethanol
vice
versa
leads
switch
superhydrophilic
Si-OH
superhydrophobic
Si-OEt
reversely
due
reversible
esterification,
thus
enabling
superhydrophobic/superhydrophilic
It
is
worth
noting
solvent-regulated
hydrophilicity/hydrophobicity
true
regardless
precursors
(the
mixture
trimethoxymethylsilane
(MTMS)/tetramethoxysilane
(TMOS),
MTMS/tetraethyl
orthosilicate
(TEOS),
sodium
methicosilicate
(SMS)/TMOS),
thereby
indicating
universality,
which
wakes
up
considerable
attention
producers
involved
Additionally,
discovery
also
provides
a
green,
economical,
efficient
way
achieve
with
hydrophilic/hydrophobic
specific
Abstract
Special
wettability
fibrous
materials
have
received
a
lot
of
attention
because
their
good
connectivity,
mechanical
flexibility,
large
specific
surface
area,
and
ease
shape
manipulation.
Their
outstanding
performance
paves
the
way
toward
efficient
oil/water
separation
in
variety
environments
for
requirements.
This
paper
discusses
distinct
advantages,
challenges,
future
research
directions
various
substrates
materials,
such
as
nonwoven
natural
biomass
fibers,
fabrics,
electrospinning
metallic
inorganic
nonmetallic
fibers.
The
special
filter
adsorbents
are
summarized
based
on
different
methods.
principles
preparation
wettabilities
introduced,
unique
advantages
emphasized.
strategy
is
discussed,
well
some
representative
work
progress.
benefits,
drawbacks,
terms
examined.
article
emphasizes
pollution
resistance
elasticity
adsorbents.
Finally,
prospects
problems,
development
used
discussed.
