Advanced Energy and Sustainability Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 1, 2024
The
development
of
heterogeneous
electrodes
with
high
conductivity
and
electrocatalytic
activity
is
a
crucial
goal.
Achieving
this
using
simple
low‐cost
method
essential
for
wastewater
purification
by
anodic
oxidation
combined
peroxymonosulfate
(PMS).
Herein,
TiO
2
–CaTiO
3
(CTO)‐Cu
O–Cu
heterojunction
are
prepared
mixing
CaCu
Ti
4
O
12
different
amounts
graphene
oxide
(GO).
mixtures
pressed
into
pellets
sintered
under
inert
atmosphere
at
1100
°C
h.
obtained
used
as
anodes
PMS
activation
in
the
electrocatalysis.
efficiency
paracetamol
(PCM)
removal
reaches
its
maximum
(93%)
after
90
min
CTO–Cu–5GO
electrode
solution
containing
10
ppm
PCM,
210
mL
sodium
sulfate,
0.5
mM
PMS.
higher
amount
metallic
copper
anode
promotes
generation
radicals
to
effectively
degrade
PCM.
In
optimal
conditions
(1.2
V
versus
Ag/AgCl,
1
PMS,
PCM),
PCM
completely
removed
45
min.
According
quenching
test
results,
•
−
OH
generated
during
degradation,
plays
main
role.
work,
insights
provided
rational
combination
metal
oxides
heterostructure
ensure
mineralization
pharmaceuticals
Advanced Sustainable Systems,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 12, 2025
Abstract
The
foremost
cause
of
global
warming
in
21
st
century
is
excessive
generation
CO
2
and
its
build‐up
atmosphere.
In
mandate
to
address
this
important
problem,
many
solutions
are
investigated,
with
conversion
emerging
as
a
key
approach.
This
method
produces
clean,
renewable
energy
while
simultaneously
lowering
levels.
order
facilitate
an
investigation
sophisticated
multifunctional
catalysts
for
conversion,
study
starts
by
looking
at
the
primary
sources
their
effects
on
environment.
It
explores
importance
development
methods
into
value‐added
products
including
methanol,
ethanol,
hydrocarbons.
Specifically,
utilization
tailored
carbon‐based,
metal
organic
frameworks
(MOF)‐based,
Metal
Oxide‐based,
Zeolite‐based
catalysts,
composites
across
various
such
photocatalysis,
electrocatalysis
explored.
attempts
highlight
difficulties
possible
future
developments
complexity
topic.
provides
inclusive
exploration
facets
highlighting
significance
novel
catalyst
application
tactics
halting
warming.
A
dual
S-scheme
nanocellulose-based
SnWO4/Cu2O/Ag2WO4
(NC-SCA)
heterojunction
photocatalyst
was
synthesized
via
ultrasonication
followed
by
a
hydrothermal
method
for
the
efficient
photodegradation
of
amoxicillin
(AMX).
Under
UV-vis
light
irradiation,
NC-SCA
exhibited
an
impressive
97.40%
AMX
degradation
within
30
min,
attributed
to
its
improved
optical
absorption
and
superior
charge
migration.
The
characterization
techniques,
including
XRD,
FTIR,
PL,
spectroscopy,
confirmed
successful
integration
nanocellulose
with
SnWO4/Cu2O/Ag2WO4.
XPS
ESR
analyses
provided
insights
into
migration
mechanism
heterojunction.
Further,
trapping
experiments
identified
hydroxyl
(•OH)
superoxide
radicals
as
primary
reactive
species.
displayed
specific
surface
area
115.9
m2/g,
offering
large
active
photodegradation.
Operational
parameters
such
dosage,
pH,
concentration
were
systematically
optimized.
high
stability,
retaining
around
85%
efficiency
after
seven
cycles.
This
study
presents
innovative
strategy
designing
high-performance
photocatalysts
addressing
limitations
conventional
materials.
Catalysts,
Год журнала:
2024,
Номер
14(7), С. 403 - 403
Опубликована: Июнь 26, 2024
The
increasing
presence
of
pharmaceutical
pollutants,
such
as
acetaminophen,
in
water
bodies
poses
a
significant
environmental
challenge
due
to
their
persistence
and
potential
toxicity.
This
study
investigated
the
enhanced
photodegradation
acetaminophen
using
ZnO-NiO
nanofibers
superior
photocatalysts.
synthesized
with
varying
NiO
contents
(designated
ZN0.5,
ZN1,
ZN1.5,
ZN2),
were
characterized
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
Raman,
FTIR,
Brunauer–Emmett–Teller
(BET)
analysis,
diffuse
reflectance
spectroscopy
(DRS)
elucidate
structural,
morphological,
optical
properties.
Thermogravimetric
analysis
(TGA)
indicated
that
exhibit
high
thermal
stability,
major
weight
loss
attributed
decomposition
polymer
matrix
residual
organics.
BET
revealed
specific
surface
area
remains
stable
after
content
up
certain
ratio.
stability
correlates
photocatalytic
performance
increased
light
absorption
improved
charge
separation.
spectra
Kubelka–Munk
plots
demonstrated
reduction
bandgap
energy
higher
content,
facilitating
greater
visible
absorption.
Photocatalytic
experiments
under
irradiation,
peroxymonosulfate
(PMS),
showed
ZN1.5
achieved
highest
degradation
rate,
i.e.,
92%,
within
3
h.
Mechanistic
studies,
supported
by
radical
trapping
experiments,
efficiency
is
synergistic
effects
ZnO
heterojunctions,
which
enhance
separation
reactive
oxygen
species
(ROS)
generation.
research
highlights
effective
photocatalysts
for
pollutants.
findings
demonstrate
optimizing
composition
structure
can
significantly
improve
remediation
capabilities,
providing
promising
solution
sustainable
treatment.
