ACS Applied Materials & Interfaces,
Год журнала:
2021,
Номер
13(16), С. 18829 - 18837
Опубликована: Апрель 14, 2021
Janus
structural
interfacial
vaporization
by
separating
the
solar
absorber
from
bulk
working
fluid
has
attracted
tremendous
attention
due
to
its
low
heat
losses
and
high
conversion
efficiency
for
desalination,
water
purification,
energy
generation,
etc.
However,
a
totally
separated
double-deck
structure
with
discontinuous
transition
inefficient
photothermic
materials
undermines
long-term
use
large-scale
practical
exploitation.
Herein,
low-cost
monolithic
chitosan
aerogel
continuous
aligned
run-through
microchannels
been
demonstrated
have
highly
efficient
effect
on
seawater
desalination
wastewater
purification.
The
top
layer
enhances
broadband
light
absorption
photothermal
via
multiple
internal
reflection
of
incident
in
microchannels.
Moreover,
insulating/hydrophilic
bottom
promotes
transportation
localization,
simultaneously
prevents
salt/fouling
accumulation.
As
result,
rate
∼1.76
kg
m–2
h–1
is
achieved,
corresponding
light-to-vapor
∼91%
under
1
sun
irradiation.
Notably,
large-vessel
throughout
favorable
swelling
property
provide
sufficient
replenishment
storage
completely
isolating
self-contained
evaporation,
illustrating
an
enhanced
time-extended
steam
generation.
Such
bilayer
remarkable
cycling
stability
various
fluids
offers
potential
opportunities
freshwater
production
remote
rural
areas.
ACS Nano,
Год журнала:
2021,
Номер
15(8), С. 12535 - 12566
Опубликована: Июль 19, 2021
Alternative
water
resources
(seawater,
brackish
water,
atmospheric
sewage,
etc.)
can
be
converted
into
clean
freshwater
via
high-efficiency,
energy-saving,
and
cost-effective
methods
to
cope
with
the
global
crisis.
Herein,
we
provide
a
comprehensive
systematic
overview
of
various
solar-powered
technologies
for
alternative
utilization
(i.e.,
"sunlight-energy-water
nexus"),
including
solar-thermal
interface
desalination
(STID),
membrane
(STMD),
solar-driven
electrochemical
(SED),
harvesting
(ST-AWH).
Three
strategies
have
been
proposed
improving
evaporation
rate
STID
systems
above
theoretical
limit
designing
all-weather
or
all-day
operating
by
analyzing
energy
transfer
condensation
processes
caused
conversion.
This
review
also
introduces
fundamental
principles
current
research
hotspots
two
other
seawater
(STMD
SED)
in
detail.
In
addition,
cover
ST-AWH
terms
technology
design,
materials
evolution,
device
assembly,
etc.
Finally,
summarize
content
this
discuss
challenges
future
outlook
different
types
technologies.
Advanced Functional Materials,
Год журнала:
2020,
Номер
31(8)
Опубликована: Ноя. 10, 2020
Abstract
Solar‐driven
interfacial
desalination
(SDID),
which
is
based
on
localized
heating
and
evaporation,
provides
an
opportunity
for
developing
environmentally
friendly
cost‐effective
seawater
thermal
desalination.
However,
rapidly
generated
steam
may
cause
salt
to
accumulate
the
evaporator's
surface
block
channel
of
evaporation.
Salt
accumulation
inevitably
reduces
light
absorption
service
period
solar
absorber,
resulting
in
a
significant
decrease
evaporation
efficiency
over
time.
makes
it
difficult
produce
SDID
devices
with
high
energy
long‐term
stability
large‐scale
use
remote
poverty‐stricken
areas.
Therefore,
exploration
novel
effective
strategies
addressing
through
both
material
design
structural
engineering
has
attracted
more
attention
recent
years.
This
review
presents
overview
state‐of‐the‐art
advancements
salt‐resistant
photothermal
discusses
critical
issues
achieving
mitigation
SDID,
focusing
classification
configurations,
basic
mechanism
mitigation,
architectural
materials.
Finally,
important
challenges
prospects
are
discussed
providing
meaningful
roadmap
efficient
SDID.
Abstract
Seawater
desalination
is
viewed
as
a
promising
solution
to
world
freshwater
scarcity.
Solar
assisted
proposed
overcome
the
high
energy
consumption
in
current
technologies,
it
uses
abundant
and
sustainable
solar
only
input.
Interfacial
vapor
generation
(SVG)
has
attracted
considerable
research
interest
due
its
conversion
efficiency,
simple
implementation,
cost‐effectiveness.
Among
all
candidate
materials
for
evaporators,
carbon‐based
stand
out
their
intrinsic
absorption,
highly
tunable
structure,
easy
preparation,
low
cost,
earth‐abundancy.
In
this
review,
recent
progress
on
development
of
interfacial
SVG
summarized.
First,
brief
introduction
basic
design
principles
system
presented.
Then,
efforts
from
artificial
structures
bioinspired
configurations,
focusing
structure–function
relationship
are
highlighted.
Strategies
designing
antisalt‐fouling
systems
also
Last,
challenges
opportunities
evaporation
technology
elaborated.
Energy & Environmental Science,
Год журнала:
2021,
Номер
14(4), С. 1771 - 1793
Опубликована: Янв. 1, 2021
This
review
summarizes
recent
advances
in
passive
thermally-localized
solar
desalination
and
provides
a
roadmap
for
more
efficient,
reliable,
commercially
feasible
technologies.
ACS Nano,
Год журнала:
2020,
Номер
14(12), С. 17419 - 17427
Опубликована: Ноя. 18, 2020
The
recent
advancements
in
interfacial
evaporation
of
salty
water
using
renewable
solar
energy
provide
one
the
promising
pathways
to
solve
worldwide
scarcity.
Pursuing
a
stable
rate
has
been
central
focus
this
field,
as
it
is
directly
related
throughput,
while
salt
deposition
on
evaporator
becomes
critical
issue.
Although
Janus-structured
evaporators
with
an
upper
hydrophobic
layer
and
bottom
hydrophilic
have
demonstrated
effective
way
suppress
precipitation,
layer,
achieved
usually
by
some
special
organic
groups,
suffers
from
photochemical
oxidation
when
exposed
oxidative
chemicals
high-energy
light,
resulting
deteriorated
surface
hydrophobicity.
Here,
we
report
our
design
efficient
salt-rejecting
Janus
taking
advantage
self-recovering
hydrophobicity
poly(dimethylsiloxane)
(PDMS)
against
damages,
which
ensures
long-term
With
its
partially
covered
PDMS,
demonstrates
excellent
rejection
capability
exhibits
1.38
kg·m-2·h-1
under
1
sun
illumination
for
400
min
continuous
operation,
or
90
d
intermittent
work.
By
combining
advantages
high
structural
integration,
salt-rejection,
evaporation,
holds
great
promise
production
clean
seawater.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Фев. 14, 2022
Recent
advances
in
thermally
localized
solar
evaporation
hold
significant
promise
for
vapor
generation,
seawater
desalination,
wastewater
treatment,
and
medical
sterilization.
However,
salt
accumulation
is
one
of
the
key
bottlenecks
reliable
adoption.
Here,
we
demonstrate
highly
efficient
(>80%
solar-to-vapor
conversion
efficiency)
rejecting
(20
weight
%
salinity)
by
engineering
fluidic
flow
a
wick-free
confined
water
layer.
With
mechanistic
modeling
experimental
characterization
transport,
show
that
natural
convection
can
be
triggered
water.
More
notably,
there
exists
regime
enabling
simultaneous
thermal
localization
rejection,
i.e.,
significantly
accelerates
rejection
while
inducing
negligible
additional
heat
loss.
Furthermore,
broad
applicability
integrating
this
layer
with
recently
developed
contactless
evaporator
report
an
improved
efficiency.
This
work
elucidates
fundamentals
transport
offers
low-cost
strategy
high-performance
evaporation.
