Radiative
cooling,
a
passive
cooling
technology,
functions
by
reflecting
the
majority
of
solar
radiation
(within
spectrum
0.3-2.5
μm)
and
emitting
thermal
atmospheric
windows
8-13
μm
16-20
μm).
Predominantly,
synthetic
polymers
are
effectively
utilized
for
radiative
while
posing
potential
environmental
hazards
due
to
their
complex
components,
toxicity,
or
nonbiodegradation.
Bacterial
cellulose,
natural
renewable
biopolymer,
stands
out
its
environmentally
friendly,
scalability,
high
purity,
significant
infrared
emissivity.
In
this
work,
we
developed
bacterial
cellulose-based
composite
film
(BCF)
with
cross-linked
network
structure
facile
agitation
spraying
method
achieve
enhanced
sustainable
performance.
The
BCF
exhibited
superior
optical
properties
tolerance,
notable
emissivity
94.6%.
As
result,
emitter
demonstrates
substantial
subambient
capacity
(11:00
13:00,
maximum
drop
7.15
°C,
average
4.85
°C;
22:00
2:00,
2.7
2.32
°C).
Additionally,
maintained
stable
after
240
h
continuous
UV
irradiation.
Furthermore,
can
preserve
freshness
fruits
under
intense
Hence,
performance
presents
broad
application
prospect
in
building
energy
conservation,
cells
efficiency
enhancement,
food
transportation
packaging.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(47)
Published: Oct. 6, 2024
Abstract
Smart
textiles
with
a
high
level
of
personal
protection,
health
monitoring,
physical
comfort,
and
wearing
durability
are
highly
demanded
in
clothing
for
harsh
application
scenarios,
such
as
modern
sportswear.
However,
seamlessly
integrating
smart
system
has
been
long‐sought
but
challenging
goal.
Herein,
based
on
coaxial
electrospinning
techniques,
non‐woven
textile
(Smart‐NT)
integrated
impact
resistance
is
developed,
multisensory
functions,
radiative
cooling
effects.
This
Smart‐NT
comprised
core‐shell
nanofibers
an
ionic
conductive
polymer
sheath
impact‐stiffening
core.
The
soft
textile,
thickness
only
800
µm,
can
attenuate
over
60%
force,
sense
pressure
stimulus
sensitivity
up
to
201.5
kPa
−1
,
achieve
temperature
sensing
resolution
0.1
°C,
reduce
skin
by
≈17
°C
under
solar
intensity
1
kW
m
−2
.
In
addition,
the
stretchable
durable
robust,
retaining
its
multifunction
features
10
000
bending
multiple
washing
cycles.
Finally,
scenarios
demonstrated
real‐time
body
comfort
sportswear
outdoor
sports.
strategy
opens
new
avenue
seamless
integration
systems.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
17(9), P. 14569 - 14577
Published: Feb. 24, 2025
Hierarchically
mesostructured
nonwovens
with
complex
fiber
morphologies
are
gaining
more
and
interest
for
filtration
applications
as
the
increased
surface
area
offers
improved
efficiencies
particulate
matter.
Several
concepts
known
to
fabricate
such
morphologies;
however,
control
over
morphology
remains
challenging.
Here,
we
report
on
preparation
of
decorated
defined
supramolecular
nanofibers
by
physical
vapor
deposition
a
selected
commercially
available
1,3,5-benzenetrisamide
(BTA).
Using
polymer
support,
show
that
this
solvent-free
process,
nanofiber
length
can
be
tuned
from
5
20
μm
depending
evaporation
time
resembling
bottlebrush-like
mesoscale.
Whereas
model
nonwoven
is
unsuitable
capture
matter,
an
increasingly
efficiency
up
87%
2.0
particles
at
low
pressure
drop
90
Pa.
Since
BTA
has
pronounced
thermal
stability,
also
enables
temperature-resistant
using
glass
microfiber
support.
We
well
maintained
even
after
heat
treatment
200
°C
24
h.
This
cannot
realized
based
commodity
polymers
engineering
plastics.
These
results
prove
general
applicability
vapor-deposited
broaden
application
window
in
field
separation
toward
efficient,
robust,
selective
filter
media.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(6), P. 767 - 767
Published: March 14, 2025
Polylactic
acid
(PLA)
fiber
membranes
fabricated
through
electrospinning
exhibit
significant
potential
for
air
filtration.
However,
their
efficiency
in
filtering
highly
permeable
particulate
matter
(PM)
is
limited,
as
these
particles
can
carry
various
bacteria
and
toxic
substances.
To
address
this
challenge,
the
dielectric
properties
of
PLA
are
enhanced
by
incorporating
dodecyl
trimethyl
ammonium
chloride
(DTAC),
leading
to
formation
a
bimodal
micro/nanofiber
structure
via
conjugated
electrospinning.
This
innovative
effectively
reduces
resistance
while
maintaining
high
filtration
efficiency.
The
performance,
including
efficiency,
pressure
drop,
long-term
stability,
overall
effectiveness,
was
systematically
investigated.
results
demonstrate
that
electrospun
membrane
achieves
99.51%
PM0.3
99.97%
PM2.5.
Additionally,
it
exhibits
high-quality
factor
(0.0555
Pa⁻1
0.0846
PM2.5),
stability
(with
decreasing
only
2.78%
PM2.5
0.01%
after
two
months),
excellent
bactericidal
effects
against
E.
coli
S.
aureus
due
incorporated
DTAC.
Therefore,
method
not
enhances
but
also
provides
an
effective
approach
developing
efficient
materials
with
antibacterial
properties.
Amid
the
global
pursuit
of
carbon
neutrality
and
pressing
challenge
severe
air
pollution,
degradable
cellulose
acetate
(CA)
materials
hold
great
potential
in
field
filtration.
However,
their
weak
polarity
poor
antibacterial
properties
limit
widespread
application
this
field.
Herein,
we
developed
CA-based
nanofibrous
membranes
(CAPZ
NFMs)
with
antimicrobial
properties,
which
achieved
efficient
stable
filtration
performance
through
a
self-sustaining
electrostatic
effect
driven
by
polarity.
CAPZ
NFMs
were
fabricated
electrospinning
solution
that
contained
CA,
highly
polar
zwitterionic
copolymers
(PSG),
biocompatible
Zr4+.
The
groups
PSG
increased
to
19.62
mN·m-1,
significantly
surpassing
pristine
CA
(2.94
mN·m-1).
This
enhancement
granted
surface
2.07
kV,
enabled
PM0.3
efficiency
99.56%
while
maintaining
low
pressure
drop
79
Pa.
Notably,
maintained
superior
under
high
humidity
conditions
6
months
outdoor
storage.
Additionally,
Zr4+
coordinated
form
quaternary
ammonium
groups,
endowing
broad-spectrum
efficacy
over
99.99%.
work
could
provide
new
strategies
for
developing
next-generation
biodegradable,
high-electrostatic
materials.
