Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 25, 2024
Abstract
Interfacial
solar
steam
generation
(ISSG)
employed
for
seawater
desalination
and
wastewater
purification
shows
great
promise
to
alleviate
global
freshwater
scarcity.
However,
simultaneous
optimization
of
water
transfer
direction
in
a
cost‐effective
reliable
ISSG
balance
thermal
localization,
salt
accumulation,
resistance
oilfouling
represents
rare
feat.
Herein,
inspired
by
seabird
beaks
unidirectional
transfer,
eco‐friendly
plant
extracts,
sodium
alginate,
tannic
acid,
are
selected
crafting
an
innovative
Sodium
Alginate‐Tannic
Acid
Hemispheric
Evaporator
(STHE).
The
STHE
aligned
with
centripetally
tapered
channels
ensures
one‐directional
flow
effectively
inhibits
downward
heat
thereby
boosting
energy
efficiency.
Additionally,
the
integration
one‐way
supply
interfacial
evaporation
STHE,
mimicking
transpiration,
collaboratively
facilitates
upward
solar‐driven
rate
≈2.26
kg
m
−2
h
−1
under
one
sun
irradiation.
Even
brine
15.0
wt
%
solution,
no
crystals
observed
on
surface
STHE.
structure
superhydrophilicity
conducive
oil
repellence.
This
work
provides
pivotal
inspiration
constructing
next‐generation
generators
high‐efficiency,
salt‐tolerance,
anti‐oil‐fouling.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Interfacial
solar
evaporation
offers
a
green
and
sustainable
solution
to
solve
clean
water
shortages
via
solar‐driven
desalination.
However,
salt
crystallization
accumulation
on
evaporators
have
become
the
primary
hindrances
long‐term
practical
application
of
interfacial
technology.
To
tackle
this
challenge,
photothermal
evaporator
with
novel
parallel
two‐water
paths
strategy
is
developed
in
study.
Unlike
conventional
one‐way
path,
which
generally
leads
at
supply
end
surfaces,
thereby
limiting
lifespan
compromising
performance,
here,
second
ion
diffusion
distribution
within
reconfigured
optimized.
No
occurs
either
surfaces
or
paths,
eliminating
impact
performance
enabling
convenient
collection.
A
high
stable
rate
3.09–3.26
kg
m
−2
h
−1
recorded
over
84
continuous
NaCl
(3.5
wt.%)
without
evaporator,
making
it
an
ideal
for
zero
liquid
discharge
evaporation.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Abstract
Sunlight/electricity‐driven
thermal
evaporation
has
been
demonstrated
as
a
promising
strategy
to
obtain
distilled
water
from
seawater,
but
their
practical
applications
are
still
limited
by
unsatisfactory
photoabsorption
and
serious
water‐electrolysis
during
photothermal/electrothermal
evaporation.
Inspired
Paradisaeidae's
feather
electric
kettle,
the
biomimetic
design
of
fabrics
for
realizing
all‐weather
is
reported.
The
composed
fiber
bundles
with
carbon
(CF)
core
polypyrrole‐decorated
TiO
2
nanorod‐array
shell.
Such
CF/TiO
/PPy
fabric
exhibits
broad‐spectral
(280–2500
nm)
an
efficiency
95.5%
due
light‐trapping
effect,
it
shows
rate
(2.2
kg
m
−2
h
−1
)
under
1
sun.
Additionally,
demonstrates
good
electrothermal
performance
suppressed
owing
conductivity
CF
shielding
effect
nanorod‐array‐shell,
resulting
in
high
7.9
3
V.
Importantly,
combined
effects
sun
V,
achieves
exciting
9.1
,
even
without
solid‐salt
accumulation
long‐term
process
(10
h),
benefiting
efficient
photo/electrothermal
conversion
sufficient
water‐supplementation
thermosiphon
effect.
Thus,
present
supplies
new
path
realize
seawater
Global Challenges,
Journal Year:
2025,
Volume and Issue:
9(4)
Published: Feb. 25, 2025
Abstract
Recently,
there
has
been
a
growing
interest
in
solar‐driven
interfacial
desalination
technology,
which
focuses
on
the
localization
of
heat
to
air‐water
interface.
In
this
study,
3D
nitrogen‐doped
reduced
graphene
oxide
(3D
N@rGO)
photothermal
material
is
synthesized
with
facile
one‐step
hydrothermal
process.
The
exhibited
richer
porosity,
high
hydrophilicity
for
efficient
water
channeling,
and
all‐directional
solar
absorption
potential.
N@rGO
absorber
attained
up
≈55
°C
surface
temperature
rise
showed
≈134%
conversion
efficiency
1.94
kg
m
−2
h
−1
net
freshwater
generation
rate
under
1
sun
illumination,
owing
latent
recycle.
On
salinity
study
performed
using
10
20
wt.%
levels,
1.66
1.31
evaporation
rates
respectively.
It
sustained
stable
long‐term
performance
without
visible
salt
accumulation
level
wt.%.
three‐day
outdoor
test
carried
out
utilizing
simulated
seawater
3.5
NaCl
solution,
evaporator
demonstrated
an
average
production
2.61
,
during
power
density
reached
1.1
kW
.
promising
potential
large‐scale
water‐scarce
regions
worldwide.
