Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
ABSTRACT
To
achieve
efficient
and
selective
removal
of
Cu
2+
from
a
multi‐ion
coexistence
environment,
‐imprinted
SA/CMC/AM
microspheres
(IMSCA)
were
synthesized.
The
adsorption
capacity
efficiency
the
material
under
different
preparation
conditions
investigated.
surface
morphology
functional
groups
IMSCA
characterized
analyzed
using
SEM,
FTIR,
XRD.
SEM
images
revealed
relatively
smooth
with
specific
pores
uniform
structure.
Special
peaks
appeared
in
FTIR
spectrum
IMSCA,
indicating
possibility
imprinting
process
presence
sites.
semicrystalline
structure
exhibited
by
imprinted
XRD
characterization
further
reinforces
likelihood
In
terms
kinetics,
followed
pseudo–second‐order
kinetic
model,
suggesting
that
chemical
was
dominant
during
process.
isotherms,
Langmuir
model
better
fitted
experimental
data,
monolayer
adsorption.
mixed
solutions
multiple
metal
ions.
After
10
adsorption–desorption
cycles,
remained
at
approximately
90%.
Compared
other
materials,
exhibits
higher
capacity,
faster
elution
rate,
superior
reusability.
Chemical Communications,
Год журнала:
2024,
Номер
60(64), С. 8350 - 8359
Опубликована: Янв. 1, 2024
Metal-organic
frameworks
(MOFs)
have
become
a
hot
spot
in
the
area
of
functional
materials
and
undergone
rapid
development
wide
range
fields
21st
century.
However,
scalable
application
MOFs
is
still
constrained
by
high
production
cost
at
front
end.
Additionally,
systematic
discussion
reuse
spent
lacking.
Encouragingly,
an
increasing
number
studies
been
focusing
on
low-cost
recycling
MOF-based
materials,
providing
feasible
solutions
for
resource
recovery
reduction.
To
stimulate
future
enthusiasm
interest
realizing
blue
economy
MOFs,
ranging
from
front-end
to
terminal
disposal,
we
presented
summarized
state-of-the-art
progress
sustainable
synthesis,
separation,
MOFs.
Based
existing
challenges,
also
propose
fit-for-purpose
directions
MOF
field
move
toward
economy.
In
the
context
of
scarce
metal
resources,
one-step
separation
and
recovery
high-value
copper
ions
from
secondary
resources
is
significant
importance
presents
substantial
challenges.
This
study
identified
a
Zn-based
triazole
MOF
(Zn(tr)(OAc))
with
accessible
noncoordinated
terminal
hydroxyl
groups
within
its
framework.
The
Zn(tr)(OAc)
surpasses
most
currently
reported
Cu-specific
adsorbents
regarding
adsorption
capacity
Cu2+
selectivity.
Furthermore,
in
experiment
Cu2+,
concentration
was
increased
79.64%
simulated
resource
solution
to
98.62%
adsorbed
phase.
Both
experimental
theoretical
studies
indicated
that
high
ion
selectivity
for
primarily
due
specific
recognition
ability
(-OH)
group,
enabling
only
undergo
proton
exchange
hydrogen.
strong
material
attributed
not
between
framework
but
also
interactions
nitrogen
(N)
oxygen
(O)
atoms
heterocyclic
rings
Cu2+.
summary,
demonstrates
great
potential
provides
additional
possibilities
enhancing
MOF-based
adsorbents.
