ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(21), P. 13193 - 13201
Published: Oct. 29, 2024
Hydroxypropyl
cellulose
has
attracted
significant
attention
due
to
its
unique
structure
and
optical
properties.
However,
inherent
rigidity
large
pitch
limit
application
in
the
visual
sensing
of
heavy
metal
ions
as
flexible
films.
In
this
article,
we
designed
fabricated
structural
color
hydrogels
via
photocuring
with
acrylamide
acrylic
acid.
The
resulting
composite
hydrogel
showed
excellent
flexibility,
toughness
containing
50
wt
%
reaching
107.42
kJ
m–3.
This
enhancement
is
attributed
intercalation
acid
into
periodic
through
hydrogen
bonding.
(G50)
also
demonstrated
high
water
retention,
maintaining
97.21%
retention
even
after
12
h
saturated
brine.
Using
uranyl
ion
a
model,
G50
exhibited
maximum
adsorption
capacity
572.3
mg/g
good
selectivity
among
mixed
nuclide
alkali
ions.
process
was
identified
chemisorption,
fitting
well
Freundlich
isotherm
pseudo-second-order
model.
minimum
detection
100
mg/L,
accompanied
by
shift
from
red
purple.
X-ray
photoelectron
spectrometry
molecular
simulation
revealed
that
mechanism
UO22+
involved
coordination
amido
carboxyl
groups,
electrostatic
interaction.
These
findings
expand
potential
for
resource
utilization
natural
products
enhance
analysis
detection.
ACS ES&T Water,
Journal Year:
2024,
Volume and Issue:
4(2), P. 325 - 345
Published: Jan. 5, 2024
The
sustainable
energy
supply
to
the
global
community
remains
a
great
challenge
due
mounting
incessant
demand
and
environmental
concerns
associated
with
fossil
fuel-based
energy.
As
per
International
Atomic
Energy
Agency
(IAEA),
nuclear
power
will
be
only
reliable
source
in
future,
there
high
for
uranium
(U).
Therefore,
exploitation
of
U
from
seawater
is
essential
thousands
years
globally.
Herein,
we
discuss
some
key
developments
on
design
application
potential
sorbents
effective
extraction
(UES)
under
different
experimental
conditions.
Specifically,
focus
synthesis,
characterization,
a)
organic
(metal–organic
frameworks
(MOFs),
covalent
(COFs),
membranes,
hydrogels)
b)
inorganic
substrate
(graphene
silica)
based
composite
sorbents.
Later,
selected
studies
encompassing
mechanistic
understating
efficient
UES
using
through
various
analytical
theoretical/computational
approaches.
Finally,
present
future
challenges
that
need
addressed
compatible
exceptional
properties
UES.
We
believe
this
paper
can
expand
our
understanding
suitable
selective
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(10), P. 4937 - 4960
Published: Jan. 1, 2024
Uranium
extraction
from
seawater
(UES)
is
recognized
as
one
of
the
seven
pivotal
chemical
separations
with
potential
to
revolutionize
global
paradigms.
The
forthcoming
decade
anticipated
witness
a
surge
in
UES,
driven
by
escalating
energy
demands.
oceanic
reservoirs,
possessing
uranium
quantities
approximately
1000-fold
higher
than
terrestrial
mines,
present
more
sustainable
and
environmentally
benign
alternative.
Empirical
evidence
historical
research
indicates
that
adsorption
emerges
most
efficacious
process
for
recovery
seawater,
considering
operational
feasibility,
cost-effectiveness,
selectivity.
Over
years,
scientific
exploration
has
led
development
plethora
adsorbents
superior
capacity.
It
would
be
efficient
design
materials
deep
understanding
perspective
kinetics
thermodynamics.
Here,
we
summarize
recent
advancements
UES
technology
contemporary
challenges
encountered
this
domain.
Furthermore,
our
perspectives
on
future
trajectory
finally
offer
insights
into
subject.
