Molecules,
Journal Year:
2023,
Volume and Issue:
28(18), P. 6710 - 6710
Published: Sept. 20, 2023
The
application
of
semiconductor
metal
oxides
in
chemiresistive
methane
gas
sensors
has
seen
significant
progress
recent
years,
driven
by
their
promising
sensitivity,
miniaturization
potential,
and
cost-effectiveness.
This
paper
presents
a
comprehensive
review
developments
future
perspectives
this
field.
main
findings
highlight
the
advancements
material
science,
sensor
fabrication
techniques,
integration
methods
that
have
led
to
enhanced
methane-sensing
capabilities.
Notably,
incorporation
noble
dopants,
nanostructuring,
hybrid
materials
significantly
improved
sensitivity
selectivity.
Furthermore,
innovative
such
as
thin-film
deposition
screen
printing,
enabled
cost-effective
scalable
production.
challenges
limitations
facing
oxide-based
were
identified,
including
issues
with
selectivity,
operating
temperature,
long-term
stability,
response
times.
To
address
these
challenges,
advanced
science
techniques
explored,
leading
novel
oxide
unique
properties.
Design
improvements,
integrated
heating
elements
for
precise
temperature
control,
investigated
enhance
stability.
Additionally,
data
processing
algorithms
machine
learning
employed
improve
selectivity
mitigate
baseline
drift.
show
potential
practical
applications.
improvements
stability
achieved
through
innovations
design
modifications
pave
way
real-world
deployment.
further
enhances
reliability
accuracy
detection.
However,
remain,
research
should
focus
on
overcoming
fully
unlock
capabilities
sensors.
Green
manufacturing
practices
also
be
explored
align
increasing
environmental
consciousness.
Overall,
advances
field
open
up
new
opportunities
efficient
monitoring,
leak
prevention,
protection.
Catalysis Communications,
Journal Year:
2024,
Volume and Issue:
187, P. 106853 - 106853
Published: Jan. 20, 2024
Growing
concerns
regarding
the
inefficient
degradation
of
persistent
pollutants,
such
as
ibuprofen,
in
water
necessitate
development
advanced
treatment
methods.
Nb2O5,
with
its
properties
resembling
those
TiO2,
emerges
a
promising
alternative
catalyst
for
catalytic
treatments.
In
this
work,
we
demonstrate
exceptional
ozonation
and
photocatalysis
performance
Nb2O5/MWCNT
nanocomposites
synthesized
via
three
sol-gel
These
composites
achieve
complete
ibuprofen
within
30
min,
outperforming
conventional
catalysts
alone
due
to
their
enhanced
surface
area
synergistic
interactions.
presents
compelling
solution,
offering
an
efficient
sustainable
approach
purification.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(20), P. 8988 - 8999
Published: May 10, 2024
An
industrially
viable
catalyst
for
heterogeneous
catalytic
ozonation
(HCO)
in
water
purification
requires
the
characteristics
of
good
dispersion
active
species
on
its
surface,
efficient
electron
transfer
ozone
decay,
and
maximum
utilization.
While
metal–organic
frameworks
(MOFs)
represent
an
attractive
platform
HCO,
metal
nodes
unmodified
MOFs
exhibit
low
activity.
Herein,
we
present
a
perfluorinated
Fe–MOF
by
substituting
H
atoms
metalated
ligands
with
F
(termed
4F-MIL-88B)
to
induce
structure
evolution.
The
Lewis
acidity
4F-MIL-88B
was
enhanced
via
formation
Fe
nodes,
tailoring
distribution
surface.
As
result
modification,
rate
constant
degradation
target
compounds
examined
increased
∼700%
compared
that
observed
catalyst.
Experimental
evidence
theoretical
calculations
showed
modulated
polarity
between
molecules
contributed
adsorption
transformation
O3
•OH
Overall,
results
this
study
highlight
significance
develop
highly
stable
MOF
catalysts
HCO
provide
in-depth
mechanistic
understanding
their
structure–function
evolution,
which
is
expected
facilitate
applications
nanomaterial-based
processes
purification.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 236 - 236
Published: Feb. 28, 2025
Iron
oxides
and
hydroxides
(Fe-OH)
extracted
from
natural
sources
have
garnered
significant
attention
for
their
diverse
catalytic
applications.
This
article
provides
a
comprehensive
overview
of
the
potential
naturally
occurring
Fe-OH,
focusing
on
influence
preparation
methods
morphological
characteristics
application
in
heterogeneous
catalysis.
The
unique
physicochemical
properties
these
catalysts,
including
high
surface
area,
redox
activity,
tunable
chemistry,
make
them
promising
candidates
various
processes.
review
discusses
key
reactions
facilitated
by
such
as
advanced
oxidation
processes
(AOPs),
electrochemical
applications,
cracking,
biodiesel
production.
Furthermore,
it
highlights
recent
advancements
challenges
utilizing
materials
catalysts.
By
presenting
an
analysis
iron
oxides,
this
aims
to
stimulate
further
research
about
use
materials,
which
are
widely
distributed
Earth’s
crust.
