ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(10), С. 13060 - 13070
Опубликована: Март 4, 2024
Hierarchical
structure
and
surface
topography
play
pivotal
roles
in
developing
high-performance
solar-driven
evaporators
for
clean
water
production;
however,
there
exists
a
notable
gap
research
addressing
simultaneous
modulation
of
internal
microstructure
hydrogels
to
enhance
both
solar
steam
generation
performance
desalination
efficiency.
Herein,
anisotropic
poly(vinyl
alcohol)/MXene
composite
efficient
evaporation
wastewater
purification
are
fabricated
using
template-assisted
directional
freezing
approach
followed
by
precise
wettability
modulation.
The
resultant
exhibit
vertically
oriented
channels
that
ensure
fast
supply
during
evaporation,
their
alcohol)
skeletons
can
reduce
the
vaporization
enthalpy
hydrogels.
incorporation
MXene
sheets
enables
light
absorption
solar-thermal
conversion
while
providing
structural
reinforcement
More
importantly,
as-created
undulating
surface,
featuring
modulated
hydrophilic
troughs
hydrophobic
crests,
significantly
enhances
solar–thermal
efficiency,
thereby
boosting
performances.
As
result,
hydrogel-based
evaporator
exhibits
an
impressive
rate
2.55
kg
m–2
h–1
under
1
sun
irradiation,
coupled
with
long-term
durability
stability.
Notably,
outstanding
mechanical
robustness
hydrogel
further
high
portability
through
readily
achievable
process
reversible
dehydration/hydration.
Abstract
Solar‐driven
interfacial
evaporation
is
a
promising
technology
for
freshwater
production
from
seawater,
but
salt
accumulation
on
the
evaporator
surface
hinders
its
performance
and
sustainability.
In
this
study,
we
report
simple
green
strategy
to
fabricate
three‐dimensional
porous
graphene
spiral
roll
(3GSR)
that
enables
highly
efficient
solar
evaporation,
collection,
water
near‐saturated
brine
with
zero
liquid
discharge
(ZLD).
The
3GSR
design
facilitates
energy
recovery,
radial
transport,
directional
crystallization,
thereby
resulting
in
an
ultrahigh
rate
of
9.05
kg
m
−2
h
−1
25
wt%
under
1‐sun
illumination
48
continuously.
Remarkably,
crystallization
outer
not
only
enlarges
area
also
achieves
collection
2.92
,
thus
enabling
ZLD
desalination.
Additionally,
exhibits
record‐high
3.14
outdoor
test.
This
innovative
solution
offers
continuous
desalination
method
treatment,
which
has
great
implications
addressing
global
scarcity
environmental
issues
arising
disposal.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(24)
Опубликована: Март 8, 2023
Abstract
In
recent
years,
interfacial
solar‐driven
steam
generation
has
gained
huge
attention
as
a
sustainable
and
energy‐efficient
technology.
However,
salt
scaling
on
inside
the
evaporator
structure
induced
by
insufficient
ion
distribution
control
will
lower
evaporation
performance
hinder
stability
durability
of
evaporators.
Herein,
inspired
highly
efficient
salt‐expelling
property
gill
filaments
large
yellow
croaker,
bionic‐gill
3D
hydrogel
is
proposed
with
fabulous
multidirectional
migration
controllability.
A
composed
arrayed
beaded
hollow
columns
holes
ensuring
longitudinal
backflow
peristome‐mimetic
grooves
microcavities
lateral
advection
designed
constructed
to
achieve
crossflow
migration,
which
ensures
high
for
pure
water
(an
rate
2.53
kg
m
−2
h
−1
an
energy
efficiency
99.3%)
well
salinity
brine
(2.11
25.0
wt.%
NaCl
solution),
no
crystallizing
after
long‐term
use.
Furthermore,
excellent
chemical
stability,
mechanical
properties,
folding‐irrelevant
performance,
portability
so
that
it
can
be
used
preliminary
desalination
breeding
wastewater
through
self‐circulation
koi
aquaculture
system.
Abstract
Solar‐driven
interfacial
evaporation
(SDIE)
is
a
highly
promising
approach
to
achieve
sustainable
desalination
and
tackle
the
global
freshwater
crisis.
Despite
advancements
in
this
field,
achieving
balanced
thermal
localization
salt
resistance
remains
challenge.
Herein,
study
presents
3D
hierarchical
porous
ceramic
platform
for
SDIE
applications.
The
utilized
alumina
foam
ceramics
(AFCs)
exhibit
remarkable
corrosion
chemical
stability,
ensuring
prolonged
operational
lifespan
seawater
or
brines.
millimeter‐scale
air‐filled
pores
AFCs
prevent
losses
through
conduction
with
bulk
water,
resulting
heat‐localized
interfaces.
hydrophilic
nature
of
macroporous
AFC
skeletons
facilitates
rapid
water
replenishment
on
evaporating
surface
effective
salt‐resistant
desalination.
Benefiting
from
its
self‐radiation
adsorption
side‐assisted
capabilities,
AFC‐based
evaporators
high
indoor
rates
2.99
3.54
kg
m
−2
h
−1
under
one‐sided
three‐sided
illumination
1.0
sun,
respectively.
evaporator
maintains
rate
≈2.77
throughout
21‐day
long‐term
test.
Furthermore,
it
achieves
daily
productivity
≈10.44
outdoor
operations.
This
work
demonstrates
potential
addressing
trade‐off
between
heat
resistance,
contributes
development
durable
solar
steam
generators.
Advanced Materials,
Год журнала:
2023,
Номер
36(5)
Опубликована: Сен. 5, 2023
Abstract
Continuously
increasing
demand
for
the
life‐critical
water
resource
induces
severe
global
shortages.
It
is
imperative
to
advance
effective,
economic,
and
environmentally
sustainable
strategies
augment
clean
supply.
The
present
work
reviews
recent
reports
on
interfacial
engineering
devices
design
of
solar
vapor
generation
(SVG)
system
boosting
viability
drinkable
harvesting.
Particular
emphasis
placed
basic
principles
associated
with
evaporators
capable
efficient
solar‐to‐thermal
conversion
resulting
freshwater
via
eliminating
pollutants
from
quality‐impaired
sources.
critical
configurations
manufacturing
fast
condensation
then
highlighted
harvest
potable
liquid
water.
Fundamental
practical
challenges,
along
prospects
targeted
materials
architecture
modifications
SVG
are
also
outlined,
aiming
provide
future
directions
inspiring
research
efforts
in
this
emerging
exciting
field.
Abstract
Solar‐powered
interfacial
heating
has
emerged
as
a
sustainable
technology
for
hybrid
applications
with
minimal
carbon
footprints.
Aerogels,
hydrogels,
and
sponges/foams
are
the
main
building
blocks
state‐of‐the‐art
photothermal
materials.
However,
these
conventional
three‐dimensional
(3D)
structures
related
fabrication
technologies
intrinsically
fail
to
maximize
important
performance‐enhancing
strategies
this
still
faces
several
performance
roadblocks.
Herein,
monolithic,
self‐standing,
durable
aerogel
matrices
developed
based
on
composite
inks
ink‐extrusion
3D
printing,
delivering
all‐in‐one
steam
generators
(SGs).
Rapid
prototyping
of
multiscale
hierarchical
synergistically
reduce
energy
demand
evaporation,
expand
actual
evaporation
areas,
generate
massive
environmental
input,
improve
mass
flows.
Under
1
sun,
high
water
rates
3.74
kg
m
−2
h
−1
in
calm
air
25.3
at
gentle
breeze
2
s
achieved,
ranking
among
best‐performing
solar‐powered
SGs.
3D‐printed
microchannels
hydrophobic
modification
deliver
an
icephobic
surface
aerogels,
leading
self‐propelled
rapid
removal
ice
droplets.
This
work
shines
light
rational
materials,
not
merely
breaking
through
constraints
clean
production,
but
also
discovering
new
functions
deicing.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(24), С. 29457 - 29467
Опубликована: Июнь 7, 2023
Although
the
emerging
interfacial
solar
steam
generation
technology
is
sustainable
and
eco-friendly
for
generating
clean
water
by
desalinating
seawater
purifying
wastewaters,
salt
deposition
on
evaporation
surface
during
solar-driven
severely
degrades
purification
performances
adversely
affect
long-term
performance
stability
of
devices.
Herein,
to
construct
generators
efficient
desalination,
three-dimensional
(3D)
natural
loofah
sponges
with
both
macropores
sponge
microchannels
fibers
are
hydrothermally
decorated
molybdenum
disulfide
(MoS2)
sheets
carbon
particles.
Benefiting
from
fast
upward
transport
water,
rapid
extraction,
effective
salt-resistant
capacity,
3D
MoS2
particles
(HLMC)
an
exposed
height
4
cm
can
not
only
obtain
heat
its
top
under
downward
light
irradiation
based
solar-thermal
energy
conversion
but
also
gain
environmental
porous
sidewall
surface,
achieving
a
competitive
rate
3.45
kg
m-2
h-1
1
sun
irradiation.
Additionally,
HLMC
evaporator
exhibits
desalination
aqueous
solution
3.5
wt
%
NaCl
120
h
without
apparent
because
dual
type
pores
uneven
structure
distribution.
