Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
The
conversion
of
solar
energy
into
heat
for
seawater
desalination
is
emerging
as
a
promising
method.
However,
it
requires
further
research
on
light
absorption,
thermal
management,
and
salt
deposition
to
improve
water
evaporation
rates.
This
study
introduces
3D
evaporator
inspired
by
jellyfish
utilizing
honeycomb
fabric
(HF),
which
capitalizes
synergistic
effect
between
the
periodically
arranged
concave
unit
structure
Chinese
ink
carbon
black
particles
(ink@CB),
achieving
up
98%
absorption
with
ink@CB‐HF.
Additionally,
insulating
foam
effectively
separates
evaporating
layer
from
bulk
water,
thereby
significantly
reduces
loss.
Furthermore,
transport
channel
prepared
hydrophilic
flax
yarns
facilitate
ion
exchange
transport,
preventing
accumulation
in
photothermal
during
evaporation.
results
demonstrate
that
exhibits
an
excellent
rate
1.854
kg
m
−2
h
−1
high
efficiency
92.2%
under
1
sun
illumination.
It
maintains
efficient
even
low
sunlight
or
concentration
conditions.
Notably,
ink@CB‐HF‐foam
sustains
its
stability
throughout
15
cycles.
work
provides
new
approach
design
cost‐effective,
highly
efficient,
durable
evaporators
desalination.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(21), P. 16257 - 16265
Published: Jan. 1, 2025
Solar-driven
interfacial
evaporation
has
emerged
as
a
sustainable
solution
to
address
global
freshwater
scarcity
by
converting
solar
energy
into
thermal
for
efficient
water
purification.
To
achieve
rapid
and
energy-efficient
steam
generation,
the
development
of
advanced
photothermal
materials
with
optimized
light
absorption
activation
remains
critical.
Here,
we
present
three-dimensional
polyvinyl
alcohol/chitosan/Nb2C
MXene
(PCN)
hydrogel
engineered
high-performance
evaporation.
The
composite
integrates
Nb2C
nanosheets
hydrophilic
polymer
matrix
through
hydrogen
bonding
electrostatic
interactions,
forming
interconnected
microchannels
that
enable
broadband
(93%
across
300-2500
nm)
via
MXene's
plasmonic
effects
light-trapping
architecture.
synergistic
combination
transport
weakened
within
hydrated
network
significantly
reduces
enthalpy
1426
J
g-1.
This
design
achieves
an
exceptional
rate
2.72
kg
m-2
h-1
solar-to-vapor
conversion
efficiency
93.2%
under
1
sun
irradiation,
surpassing
conventional
polymer-based
systems.
hydrogel's
hierarchical
porous
structure
facilitates
effective
localization
sustains
stable
varying
intensities
(1-5
sun),
demonstrating
adaptability
scalable
applications.
work
provides
rational
strategy
MXene-enhanced
hydrogels
practical
desalination
wastewater
purification
technologies.
