Two-dimensional
membrane
materials
are
widely
used
for
accurate
screening
of
oil
and
water
contaminants
important
purification.
In
addition,
the
dyes
contained
in
bodies
particle
put
more
demands
on
membrane’s
functionality.
this
paper,
hybridized
nanofiber
membranes
(WPPLT)
were
prepared
from
PAN
PVDF-HPF,
which
loaded
with
LDHs
tannic
acid
(TA)
as
carriers.
The
results
showed
that
PVDF-HPF
was
able
to
cross-link
fiber
surface,
nano-LDHs
TA
improved
roughness
membrane,
thus
effectively
enhancing
hydrophilic
properties.
Meanwhile,
WPPLT
has
good
underwater
repellency
achieves
than
99%
separation
efficiency
a
variety
surfactant-stabilized
emulsions.
Continuous
tests
have
shown
stable
flux.
approximately
90%
mechanical
stretch
performance
relative
original
electrostatic
spinning
facilitates
use
complex
environments.
Finally,
achieve
photodegradation
methylene
blue
(MB)
(degradation
rate
>90%).
This
study
provides
new
insights
into
preparation
nanofibrous
purification,
prospects
their
application
contaminants.
Langmuir,
Год журнала:
2024,
Номер
40(28), С. 14368 - 14383
Опубликована: Июль 2, 2024
The
synergistic
treatment
of
oily
wastewater
containing
organic
hazards
and
emulsified
oils
remains
a
big
challenge
for
membrane
separation
technology.
Herein,
the
photocatalytic
membrane,
which
combined
physical
barrier
catalytic
oxidation-driven
degradation
functionality,
was
fabricated
via
anchoring
nanoflower-branched
CoAl-LDH@PANI
Z-scheme
heterojunction
onto
porous
polyacrylonitrile
mat
using
tannic
acid
as
an
adhesive.
assembly
such
offered
superior
performance
soluble
dyes
tetracycline
(up
to
94.3%)
with
improved
activity
2.33
times
compared
CoAl-LDH@pPAN
membrane.
Quenching
experiments
suggested
that
•O2–
most
reactive
oxygen
species
in
reaction
system
composite
greatly
enhanced
attributed
effective
inhibition
photogenerated
hole–electron
combination
PANI
carrier,
charge
transferring
from
LDH
PANI.
possible
mechanism
proposed
based
on
VB-XPS,
electron
spin
resonance
spectroscopy,
DRS
technologies,
confirmed
by
density
functional
theory
calculation.
Meanwhile,
benefiting
superhydrophilic/oleophobic
feature
low
oil
adhesion,
exhibited
high
permeability
isooctane
emulsion
(3990.39
L·m–2·h–1),
structure
stability,
satisfactory
cycling
performance.
This
work
provided
strategy
develop
superwetting
membranes
treating
complex
multicomponent
pollutants
chemical
industry.
Biomimetics,
Год журнала:
2024,
Номер
9(9), С. 523 - 523
Опубликована: Авг. 30, 2024
Sustainable
development
is
increasingly
driving
the
trend
toward
application
of
biomimicry
as
a
strategy
to
generate
environmentally
friendly
solutions
in
design
industrial
products.
Nature-inspired
can
contribute
achievement
Development
Goals
by
improving
efficiency
and
minimizing
environmental
impact
each
design.
This
research
conducted
an
analysis
available
biomimetic
knowledge,
highlighting
most
applied
tools
methodologies
sector.
The
primary
objective
was
identify
sectors
that
have
experienced
greater
adoption
those
where
its
still
early
stages.
Additionally,
applying
procedures
selected
case
study
(technologies
marine
environments),
advantages
challenges
were
determined,
along
with
potential
gaps
future
directions
necessary
for
widespread
implementation
biomimetics
industry.
These
results
provide
comprehensive
approach
more
sustainable
practices
product
development.
ACS Applied Engineering Materials,
Год журнала:
2023,
Номер
1(11), С. 3134 - 3146
Опубликована: Ноя. 7, 2023
The
efficient
separation
of
oil/water
mixtures
by
membrane
technology
is
highly
dependent
on
the
performance
materials.
emergence
electrospinning
has
opened
up
opportunities
for
designing
super
porous
structures
with
excellent
efficiency.
Herein,
we
prepared
electrospun
nanofibrous
membranes
using
a
hydrophilic
and
thermomechanically
stable
polyamide-imide
(PAI)
polymers.
fabricated
set
optimized
processes
were
examined
in
gravity-driven
various
emulsions.
effect
polymer
concentration
fiber
diameter
porosity
was
evaluated.
It
observed
that
increasing
PAI
dope
resulted
fabrication
larger
fibers
pore
size.
thus,
size
influenced
flux
efficiency
during
filtration.
12%
(EM1)
showed
lower
flux,
whereas
21%
(EM4)
offered
higher
but
exhibited
underwater
antioil
adhesion
behavior
completely
repelling
n-hexane,
mineral
oil,
n-hexadecane,
gasoline
droplets
from
their
prewetted
surfaces.
Compared
to
other
membranes,
15%
(EM2)
found
strike
balance
between
water
oil
rejection
while
also
exhibiting
strong
resistance
fouling,
as
evidenced
its
relatively
decline
(FD)
recovery
ratio
(FRR)
when
filtering
EM2
demonstrated
an
pure
800
900
L/m2
h
(LMH)
emulsion
380
410
LMH.
FRR
91–97
>99%,
respectively.
Moreover,
at
pH
3
9
consistent
performance.
utilized
n-hexane/water
cyclic
tests
provided
after
10
cycles,
demonstrating
high
potential
this
real
processes.
The
designed
and
ordered
co-immobilization
of
multiple
enzymes
for
vectorial
biocatalysis
is
challenging.
Here,
a
combination
protein
phase
separation
bioorthogonal
linking
used
to
generate
zeolitic
imidazole
framework
(ZIF-8)
containing
co-immobilized
enzymes.
Zn
