European Journal of Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 31, 2024
Abstract
The
development
of
new
catalytic
materials
for
the
fast
and
efficient
photocatalytic
reduction
toxic
Cr(VI)
to
less
Cr(III)
across
a
wide
pH
range
water
environment
has
become
one
most
challenging
topics.
Herein,
two
isopolymolybdate‐based
Ni(II)‐complexes
[Ni
II
(bcbpy)
2
(β‐Mo
8
O
26
)
0.5
(H
O)]
⋅
4H
(
BHU‐5
[θ‐Mo
]
BHU‐6
,
Hbcbpy=1‐(4‐carboxybenzyl)‐4,4′‐bipyridinium)
were
synthesized
via
hydrothermal
reaction
with
mixture
Na
MoO
4
2H
O,
NiCl
6H
HbcbpyCl
ligands.
Single‐crystal
X‐ray
diffraction
analysis
displays
that
contain
binuclear
nickel‐bcbpy
units,
which
in
association
different
isopolymolybdates,
forming
distinct
1D
chain
2D
layer
network
structures,
respectively.
When
used
as
photocatalysts
Cr(VI),
exhibited
activities,
achieving
removal
efficiencies
92
%
98
under
visible
light
irradiation
within
45
min.
These
surpass
those
pristine
HbcbpyCl,
reported
polymolybdate‐based
catalysts.
Moreover,
demonstrated
high
removing
maintained
structural
stability
3.5–11.5.
influence
structures
on
efficiency
was
further
studied.
mechanism
kinetics
investigated
detail.
Polyoxometalates,
Journal Year:
2024,
Volume and Issue:
3(3), P. 9140061 - 9140061
Published: Feb. 19, 2024
The
design
and
synthesis
of
a
bifunctional
catalyst
to
tackle
environmental
pollution
caused
by
2-chloroethyl
ethyl
sulfide
(CEES)
phenolic
compounds
is
meaningful.
In
this
study,
new
three-dimensional
(3D)
polyoxovanadate
(POV)-based
metal–organic
framework,
[Co(L)(V4O12)0.5(H2O)]·2H2O
(1;
L
=
N,N'-bis(3-methylpyridin-3-yl)-2,6-naphthalenediamide),
was
synthesized
under
hydrothermal
conditions.
1
characterized
using
single-crystal
X-ray
diffraction
analysis,
infrared
spectroscopy,
powder
diffraction.
Structural
analysis
shows
that
the
[V4O12]4–
clusters
pairs
Co2+
cations
are
alternately
connected
form
one-dimensional
inorganic
chain,
eventually
generating
3D
(4,4)-connected
framework
through
expansion
L,
which
exhibits
two
fold
interpenetration
array.
As
catalyst,
satisfactory
catalytic
properties
for
selective
oxidation
corresponding
sulfoxide,
with
an
effective
conversion
>
99%
selectivity
97%.
Furthermore,
excellent
photocatalytic
degradation
activity
toward
phenol,
2-chlorophenol,
m-cresol
visible
light.
efficiencies
were
above
92.6%
140
min.
reaction
kinetics,
mechanisms
photodegradation,
recycling
capability
phenol
also
investigated
in
detail.
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Developing
new
photocatalysts
for
the
selective
oxidation
of
thioethers
to
high-value-added
sulfoxides
under
low-oxygen
mild
conditions
is
a
promising
but
challenging
strategy.
Here,
polyoxometalate-based
metal–organic
framework
(POMOF),
CoBW12–TPT,
was
successfully
synthesized,
wherein
continuous
π···π
stacking
interactions
and
direct
coordination
bonds
not
only
strengthen
framework's
stability
also
accelerate
electron
transfer.
A
series
experiments
theoretical
studies,
including
control
experiments,
kinetic
electrochemical
spectroscopic
analyses,
paramagnetic
resonance,
revealed
synergistic
catalytic
effect
among
Co(II)
metal
centers,
BW12O405–,
photosensitizer
TPT.
CoBW12–TPT
applied
in
photocatalytic
sulfoxides.
Under
irradiation,
photoinduced
transfer
POMOF
leads
generation
superoxide
radicals
from
O2,
which
controls
sulfoxide
compounds
desulfurization
reaction
shows
good
activity.
In
particular,
it
can
be
construction
some
drug
molecules
such
as
Modafinil
Albendazole
Oxide.
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(2)
Published: Jan. 15, 2025
ABSTRACT
Designing
efficient
photocatalyst
has
attracted
extensive
attention
for
treating
polluted
wastewater
containing
Cr
(VI).
In
this
work,
two
viologen/polyoxometalate
(POM)‐based
compounds
were
synthesized,
[Ni
(mimb)
2
(H
O)
4
(β‐Mo
8
O
26
)]·4H
(
1
)
and
[Zn
(mimb
=
1‐((3,5‐dimethylisoxazol‐4‐yl)methyl)‐[4,4′‐bipyridin]‐1‐ium),
through
a
hydrothermal
method
investigated
their
ability
of
photocatalytic
reduction
The
structures
1–2
characterized
by
single‐crystal
X‐ray
diffraction,
revealing
that
both
possess
zero‐dimensional
(0D)
structure
can
form
one‐dimensional
(1D)
chain
hydrogen
bondings.
Photocatalytic
experiments
demonstrate
compound
superior
performance
compared
to
.
Under
optimal
conditions
(pH
2,
15
mg
catalysts,
10
L
−1
(VI)
concentration),
completely
reduce
within
20
min,
while
requires
30
min.
Compounds
also
show
good
stability
after
reaction,
maintain
high
activity
five
reaction
cycles.
Additionally,
the
mechanism
was
studied,
free
radical
scavenging
its
main
active
species
are
e
−
,
h
+
˙O
nitroblue
tetrazolium
(NBT)
further
confirm
crucial
role
in
process.
activity,
stability,
recyclability
viologen/POM‐based
suggest
potential
application
treatment
ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
7(1), P. 1310 - 1318
Published: Dec. 28, 2023
Basket-like
polyoxometalate
(POM)
nanoclusters
possess
bulky
space
barriers
and
limited
coordination
active
sites;
therefore,
it
is
difficult
for
them
to
bond
with
functional
metal–organic
building
units
construct
porous
materials.
To
overcome
this
bottleneck,
we
adopt
a
dual-ligand
strategy
anchor
basket-like
POM
onto
Ag-pz
chain
yielding
polyporous
hybrid
material,
(H4btb)[{Ag4(H2O)(pz)5Cl}{H2SrP6Mo18O73}]·4H2O
(BAS-MOF-1).
It
the
first
three-dimensional
(3D)
net
intersecting
tunnels
based
on
unique
double-layer
structure
composed
of
{P6Mo18O73}
nodes
chains.
As
an
anode
Li-ion
battery
(LIB),
material
shows
higher
lithiation
capacity,
stability,
rate
than
zero-dimensional
(0D)
control
compounds,
which
can
be
ascribed
superior
redox
ability
POMs
stable
organic–inorganic
structures.
