Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
ABSTRACT
A
novel
catalyst
material
named
Pd/UiO‐66(Zr)‐2OH
was
successfully
developed
and
applied
in
a
hydrogen‐promoted
Fenton
system
for
the
efficient
catalytic
oxidation
of
widely
used
antibiotic
trimethoprim
(TMP).
The
UiO‐66(Zr)‐2OH,
as
carrier
this
work,
synthesized
through
solvothermal
method.
Pd
0
nanoparticle,
active
center
catalyst,
loaded
onto
its
surface
by
“ship‐in‐a‐bottle”
strategy.
results
showed
that
composite
demonstrated
excellent
performance
during
reaction,
achieving
over
97%
TMP
removal
efficiency
within
180
min
under
optimal
conditions
condition
only
trace
iron
without
adding
H
2
O
.
This
may
be
attributed
to
fact
[H],
clean
reducing
agent,
can
utilized
accelerate
regeneration
Fe
2+
well
in‐situ
key
parameters
affecting
TMP,
including
initial
pH
concentration
,
dosage
material,
flow
rate
stirring
speed
were
investigated
systematically.
exhibited
high
stability
reusability,
maintaining
82%
degradation
after
six
reaction
cycles.
mechanistic
insight
revealed
primarily
relied
on
generation
hydroxyl
radical
(·OH)
singlet
oxygen
(
1
)
which
verified
quenching
experiments
electron
spin
resonance
(ESR).
pathway
elucidated
analyzing
intermediates
reduction
total
organic
carbon
(TOC).
research
offers
conceptual
insights
into
evolution
application
advanced
technologies,
emerging
pollutants,
expansion
pathways
hydrogen
resource
utilization.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(19), P. 11378 - 11389
Published: Jan. 1, 2024
Resonance-activated
KNbO
3
nanofibers
have
significant
strain-induced
piezoelectric
potential,
facilitating
the
conversion
of
mechanical
to
chemical
energy.
The
presence
resonance-enhanced
mechanism
can
reduce
requirement
for
ultrasonic
power
input.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
The
utilization
of
ferroelectric
polarization-assisted
photoelectrochemical
(PEC)
systems
holds
huge
promise
for
solving
the
issue
high
recombination
photogenerated
electron–hole
pairs.
Monitoring
their
intricate
charge-transfer
process
can
offer
profound
insights
into
advancement
highly
active
photoelectrodes.
In
this
work,
hydrothermally
synthesized
titanium
dioxide
nanorod
arrays
(TiO2
NRAs)
are
subjected
to
in
situ
etching
introduce
oxygen
vacancies
(Ov),
and
subsequently
loaded
with
barium
titanate
(BaTiO3,
BTO)
nanoparticles
form
a
polarization
effect-assisted
type-II
heterojunction.
resulting
Ov-TiO2/BTO
demonstrates
an
ultrahigh
photocurrent
102
μA
outstanding
stability
over
7200
s,
far
surpassing
majority
recently
reported
PEC
photoanodes
operating
at
bias
voltage
0
V
(vs
Ag/AgCl).
Notably,
photoinduced
charge
transfer
was
monitored
microscale
by
advanced
scanning
microscopy
(SPECM).
As
showcase,
aptamer-coupled
self-powered
biosensor
kanamycin
presents
excellent
sensitivity
good
anti-interference
ability.
This
study
not
only
elucidates
intrinsic
mechanism
synergistic
amplification
photoelectric
signals
heterojunctions
but
also
provides
reliable
platform
ultrasensitive
detection
biological
molecules.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
Abstract
H
2
O
production
in
coupled
electrochemical
systems,
where
is
generated
through
2e‐pathway
of
water
oxidation
(2e‐WOR)
at
anode
and
oxygen
reduction
(2e‐ORR)
cathode,
offers
an
advanced
alternative
to
the
anthraquinone
process.
However,
efficiency
such
system
often
hindered
by
limited
activity
selectivity
electrocatalysts.
Herein,
a
dual‐functional
catalyst
composed
amorphous
TiO
embedded
mesoporous
carbon
hollow
spheres
(TiO
x
@MCHS)
reported,
which
exhibits
exceptional
electrocatalytic
performance
for
both
2e‐WOR
2e‐ORR.
By
employing
@MCHS‐loaded
electrodes
as
cathode
membrane‐free
flow
cell
with
4
м
K
CO
3
/KHCO
electrolyte,
rate
108.3
µmol
min
−1
cm
−2
Faradaic
(FE)
≈145%
are
achieved
voltage
≈2.5
V
under
constant
current
240
mA
(anode:
1
,
cathode:
).
Experimental
computational
results
reveal
crucial
role
low‐coordinated
Ti
optimizing
adsorption
intermediates
involved
two
electrode
reaction
pathways,
thereby
enhancing
these
processes.
This
work
establishes
new
paradigm
development
electrocatalysts
design
novel
coupled‐electrolysis
enabling
scalable
sustainable
electrosynthesis.
Crystal Growth & Design,
Journal Year:
2024,
Volume and Issue:
24(18), P. 7605 - 7616
Published: Aug. 29, 2024
In
order
to
solve
the
current
energy
and
environmental
crisis,
design
of
efficient
catalyst
materials
is
a
highly
effective
solution.
this
paper,
photocatalytic
performance
TiO2/g-C3N4
composites
was
improved
by
regulating
their
microstructure,
such
as
constructing
nanosheet
structures,
defect
sites,
contact
interfaces.
Although
TiO2
had
limited
activity
in
H2
production
under
visible
light
irradiation,
it
could
serve
an
electron
acceptor
g-C3N4,
greatly
increased
g-C3N4.
The
optimal
composite
showed
good
(436.3
μmol
h–1
g–1),
which
23.8
3
times
that
T400
respectively.
be
attributed
higher
separation
rate
photogenerated
charge
carriers
(PCCs),
more
active
sites
for
reaction,
lower
barrier
than
Through
many
characterization
testing
technologies,
work
deeply
studies
relationship
between
fine
structure
reaction
mechanism
2D/2D
TiO2/g-C3N4,
providing
new
direction
understanding
development
2D
with
activity.
