Thick Hydrogel Membrane With Macro‐Channel for Rapid Uranium Extraction From Seawater
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
The
growing
demand
for
uranium
driven
by
nuclear
power
development
necessitates
the
creation
of
macroscale,
cost‐effective,
and
efficient
adsorbents
extraction
from
seawater,
a
challenge
yet
to
be
fully
addressed.
Amidoxime‐based
hydrogel
are
promising
candidates
but
suffer
performance
limitations
due
bound
water
obstructing
pore
channels
impeding
uranyl
ion
migration.
Herein,
thick
macro‐channel
poly(amidoxime)‐polyvinyl
alcohol
membrane
(MCHM)
with
double
cross‐linking
structure
is
introduced,
designed
enhance
adsorption.
Unlike
traditional
powders
microfibers,
macroscale
facilitates
deployment
recovery
in
marine
environments,
while
its
directional
channel
improves
mass
transfer
properties
accessibility
amidoxime
groups.
Using
COMSOL
Multiphysics,
design
parameters
such
as
size,
thickness,
arrangement
optimized,
significantly
enhancing
reducing
costs.
In
natural
optimized
MCHM
2.0
mm
channels,
20
times
thicker
than
ultra‐thin
membranes
demonstrated
improvements
99%
adsorption
capacity
179%
rate
compared
non‐channel
counterparts.
This
method
uniquely
combines
material
innovation
computational
modeling,
providing
valuable
insights
into
how
internal
influences
their
performance.
findings
provide
scalable
solution
adsorbents,
enabling
sustainable
seawater.
Язык: Английский
Spontaneous Lifting and Self-Cleaning of Gas Hydrate Crystals
ACS Nano,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Crystal
fouling,
which
refers
to
the
accumulation
of
precipitates
on
surfaces
and
associated
damage,
is
a
common
problem
in
many
industrial
processes.
In
deepwater
oil
gas
transportation,
hydrate
blockage
poses
as
considerable
barrier.
Consequently,
modifying
hydrophobicity
has
become
an
increasingly
focused
strategy
mitigate
hydrate.
However,
design
that
effectively
control
remains
challenging.
Herein,
we
report
superior
smooth
anti-hydrate
material
based
silanized
modification.
The
low-adhesion
silicon
wafer
(SSW)
realizes
win-win
hard
formation
easy
removal.
Through
comprehensive
study
combining
experimental
validation
with
theoretical
analysis,
unique
characteristics
SSW
field
were
deeply
discussed.
Various
crystals
exhibited
completely
different
growth
mode
at
surface,
spontaneously
elevated
lifted
themselves
off
from
surface.
presence
fluorine
element
surface
allowed
self-lifting
after
they
covered
water
droplet.
And
loose
porous
crystal
structure
this
could
reduce
contact
area
between
substrate,
allowing
minimal
adhesion
force
removal
disturbance.
Furthermore,
enrichment
also
reduced
thereby
decreasing
self-cleaning
behavior.
These
results
indicate
promising
candidate
for
developing
materials
hydrocarbon
production
transportation
industry.
Язык: Английский
Thermal Diffusion Mediated Nucleation of Vapor Bubbles on Metal Microspheres
International Journal of Mechanical Sciences,
Год журнала:
2025,
Номер
unknown, С. 110099 - 110099
Опубликована: Фев. 1, 2025
Язык: Английский
Effect of nano- and micron-materials on the thermal properties behavior in wet environments and heat transfer mechanism of foam concrete
Journal of Building Engineering,
Год журнала:
2025,
Номер
unknown, С. 112725 - 112725
Опубликована: Апрель 1, 2025
Язык: Английский
Simulation of nonlinear effective thermal conductivity using CAE Fidesys
Чебышевский сборник,
Год журнала:
2025,
Номер
25(4), С. 308 - 328
Опубликована: Янв. 20, 2025
This
article
is
devoted
to
the
numerical
estimation
of
effective
thermal
conductivity
coefficients
heterogeneous
media.
An
algorithm
described,
modified
for
non-linear
case
(when
properties
material
components
depend
on
temperature).
Using
Fidesys
CAE
system,
linear
calculations
are
performed
estimate
construction
heat-insulating
composites
made
polymer
reinforced
with
hollow
glass
microspheres.
The
cases
simple
cubic
packing
filler
particles
and
their
random
distribution
in
matrix
investigated.
implemented
as
a
research
software
module
solving
problems
estimating
conductivity.
it,
model
orthogonally
particle-reinforced
solved.
configuration
an
composite
revealed,
effectivethermal
which
does
not
temperature.
A
significantly
non-monotonic
dependence
temperature
obtained
particlereinforcedcomposite.
Язык: Английский