Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
In
this
work,
a
novel
stable
zirconium-based
metal-organic
framework
(Zr-MOF)
with
the
formula
[Zr6O4(OH)4(PVDC)6]4·66DMF
(Zr-1,
H2PVDC
=
(E,E)-2,5-dimethoxy-1,4-bis[2-(4-carboxylatestyryl)]benzene;
DMF
N,N-dimethylformamide)
was
synthesized
by
introducing
linear
phenylenevinylene-based
carboxylate
ligand
to
react
ZrCl4
under
solvothermal
conditions.
According
single-crystal
X-ray
diffraction
measurement,
complex
Zr-1
featured
2-fold
interpenetrated
framework,
in
which
single
coordination
possessed
structure
similar
that
of
well-known
Zr-MOF,
UiO-66,
constructed
from
[Zr6O4(OH)4]12+
clusters
and
ligands
PVDC2-.
Due
introduction
phenylenevinylene-functionalized
ligand,
exhibited
unique
fluorescence
sensing
performance
toward
permanganate
(MnO4-)
different
concentrations.
At
low
concentrations,
emission
intensity
around
510
nm
enhanced
significantly
an
increase
concentration
MnO4-
aqueous
suspension.
However,
while
excess
added
into
suspension,
decreased
significantly,
peak
turned
five
peaks
upon
addition
MnO4-.
Such
phenomenon
has
been
scarcely
reported
previous
MOF-based
sensors.
Moreover,
showed
high
anti-interference
capability
for
detection
both
at
This
work
may
pave
new
way
development
platforms.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Environmental
concerns
are
driving
the
development
of
eco-friendly
and
effective
methods
for
contaminant
monitoring
remediation.
In
this
study,
a
lanthanide
porphyrin-based
MOF
with
dual
fluorescence
sensing
photocatalytic
properties
was
synthesized
applied
detection
combined
removal
Cr(VI)
ciprofloxacin
(CIP).
Using
different
excitation
wavelengths,
material
exhibited
selective
via
quenching
CIP
through
enhancement.
The
variation
in
color
intensity
Tb-MOF
on
3D
EEM
spectra
enabled
simultaneous
both
contaminants.
Additionally,
demonstrated
synergistic
effect,
achieving
over
95%
rates
within
90
min,
consistent
catalytic
performance
across
four
cycles.
Mechanistic
investigations
revealed
that
(i)
strong
coordination
between
Tb3+
altered
surface
potential
Tb-MOF,
enhancing
adsorption;
(ii)
as
an
efficient
electron
acceptor,
promoted
transfer
its
reduction
to
Cr(III);
(iii)
superoxide
radicals
generated
type
I
mechanism
played
key
role
degradation.
This
research
underscores
multifunctional
platform
remediation
mixed
pollutants.
