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.
Solar-powered
interfacial
evaporation
has
emerged
as
a
promising,
sustainable
technology
for
clean
water
production
with
its
minimal
carbon
footprint.
Currently,
extensive
research
efforts
focus
on
enhancing
solar
rates
and
broadening
the
applicability
of
three-dimensional
(3D)
steam
generators
(SGs).
For
large-scale
production,
individual
3D
SGs
must
be
integrated
into
system-level
SG
arrays
deployment
in
portable
devices
or
distillation
plants.
Therefore,
array's
configuration
plays
an
even
more
critical
role
boosting
evaporation.
From
methodological
perspective,
development
numerical
simulation
evaluation
methods
to
predict
is
emerging
frontier.
Nonetheless,
complex
energy-water-solute
interactions
within
remain
largely
underexplored.
Herein,
their
are
developed.
The
temperature,
relative
humidity,
airflow,
air
particle
distributions
throughout
simulated,
guiding
optimization
structures
arrangement
arrays.
By
promoting
cold
evaporation,
8-Fin
achieves
highest
rate
over
2.3
kg
m-2
h-1
under
1
sun,
further
increase
4.8
moderate
positioning
it
among
best-performing
solar-powered
SGs.
circular
array
nine
(12
cm
spacing)
enables
sustained
"all-cold
evaporation"
each
unit,
where
continuous
energy
harvesting
from
both
ambient
bulk
drives
exceptional
5.9
natural
sunlight.
We
present
approach
combining
experimental
studies
arrays,
inspiring
new
paradigm
advancing
toward
applications.
Membranes,
Journal Year:
2025,
Volume and Issue:
15(5), P. 134 - 134
Published: May 1, 2025
Currently,
solar-driven
interface
evaporation
for
seawater
desalination
is
believed
to
be
an
effective
way
overcome
freshwater
shortage.
To
improve
the
efficiency
of
interfacial
evaporators,
designing
evaporator’s
structure
essential.
In
this
study,
we
proposed
a
folded
evaporator
with
electrospun
recycled
PET/carbon
nanotube
fibrous
membranes.
The
as-spun
membranes
were
into
4,
8,
and
16
petals.
results
suggested
that
F@8
(fold
eight
petals)
had
best
performance,
photothermal
conversion
90.59%
rate
1.31
kg·m−2·h−1,
due
its
lower
light
projection
area
greater
absorption.
performance
remained
stable
after
10
cycles.
addition,
concentration
ions
in
collected
was
2~3
orders
magnitude
than
before
desalination.
These
indicate
properly
designed
can
effectively
enhance
evaporators
through
changing
This
approach
might
provide
optimize
evaporators.
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.
