Sustainability,
Год журнала:
2024,
Номер
16(14), С. 5993 - 5993
Опубликована: Июль 13, 2024
In
pursuit
of
sustainable
solutions
for
water
pollution
mitigation,
we
have
successfully
employed
electrospinning
technology
to
fabricate
a
multilayered
sodium
alginate
(SA)/polyethyleneimine
(PEI)/polyvinyl
alcohol
(PVA)
nanocomposite
fiber
membrane,
with
focus
on
enhancing
its
adsorption
capacity
Cu2+
ions
in
wastewater.
Our
research
underscores
the
potential
this
novel
characterized
by
small
diameter,
high
uniformity,
and
expansive
surface
area,
effectively
filtering
heavy
metal
ions.
By
optimizing
critical
parameters
such
as
voltage
19.5
KV,
collector
distance
8
cm,
specific
mass
ratio
SA:PEI:
PVA
(1:2:6),
an
injection
rate
μL/min,
achieved
nanofiber
membrane
average
diameter
112.5
nm,
exhibiting
exceptional
morphological
characteristics
efficiency.
Notably,
exhibited
over
85%
during
initial
testing,
maintaining
80%
efficiency
throughout
four
consecutive
filtration
cycles.
This
work
not
only
advances
field
membranes
purification
but
also
contributes
significantly
broader
goal
achieving
environmental
sustainability
mitigating
impact
contamination
bodies.
ACS Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(49), С. 55295 - 55306
Опубликована: Дек. 1, 2022
As
an
effective
way
to
obtain
freshwater
resources,
atmospheric
water
harvesting
(AWH)
technology
has
been
a
wide
concern
of
researchers.
Therefore,
hydrogels
gradually
become
key
materials
for
harvesters
due
their
high
specific
surface
area
and
three-dimensional
porous
structure.
Here,
we
construct
core-shell
hydrogel-based
material
consisting
shell
sodium
polyacrylate
(PAAS)
hydrogel
with
open
pore
structure
core
thermosensitive
poly
N-isopropylacrylamide
(PNIPAAm)
large
size.
Theoretically,
the
mutual
synergistic
hygroscopic
effect
between
layer
accelerates
capture,
transport,
storage
moisture
achieve
continuous
high-capacity
adsorption.
Simultaneously,
integration
polydopamine
(PDA)
realizes
solar-driven
photothermal
evaporation.
prepared
possesses
great
advantages
in
adsorption
capacity
desorption
2.76
g
g-1
(90%
RH)
1.42
kg
m-2
h-1.
Additionally,
collects
1.31
day-1
fresh
outdoor
experiments,
which
verifies
that
this
integrated
properties
can
capture
range
humidity
without
any
external
energy
consumption,
further
sustainably
remote
water-shortage
areas.
