A photocatalyst combined of copper doped ZnO and graphdiyne (Cu/ZnO@GDY) for photocatalytic degradation of tetracycline: Mechanism and Application
Xinni Sun,
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Hao Yang,
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Junbin Xie
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et al.
Water Research,
Journal Year:
2025,
Volume and Issue:
278, P. 123345 - 123345
Published: Feb. 20, 2025
Language: Английский
Flower-like spherical g-C3N4/Ag/BaTiO3 nanocomposites for enhanced photocatalytic in nitrogen fixation and tetracycline degradation
Tiantian Yang,
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Zibo Dong,
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Inaam Ullah
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et al.
Journal of Alloys and Compounds,
Journal Year:
2025,
Volume and Issue:
1016, P. 178968 - 178968
Published: Feb. 1, 2025
Language: Английский
Enhanced Antibacterial Activity of Sodium Titanate/Graphene Quantum Dot Self-Supporting Membranes via Synergistic Photocatalysis and Physical Cutting
Materials,
Journal Year:
2025,
Volume and Issue:
18(8), P. 1844 - 1844
Published: April 17, 2025
Graphene
quantum
dots
(GQDs)
show
significant
promise
as
antibacterial
agents,
but
their
application
is
hindered
by
several
limitations,
including
potential
cytotoxicity
at
high
concentrations,
well
concerns
regarding
aggregation
and
reusability.
In
this
study,
sodium
titanate
(NTO)
ultralong
nanotubes
were
utilized
both
a
photocatalyst
support
for
GQDs.
The
NTO/GQDs
heterojunction
was
formed
embedding
GQDs
nanoplates
onto
the
walls
of
NTO
nanotubes.
This
integration
significantly
improved
visible
light
absorption
enhanced
separation
transfer
electron–hole
pairs,
leading
to
an
efficient
photocatalytic
process.
NTO/GQD-8
self-supporting
membrane
composed
these
demonstrated
outstanding
efficiency
(99.99%)
against
E.
coli
exhibited
remarkable
cycling
stability.
Radical
scavenging
experiments
revealed
that
∙OH
e−
primary
reactive
species
driving
Notably,
NTO/GQDs-8
distinct
outcomes.
After
treatment
with
NTO/GQDs-8,
cells
completely
fragmented,
no
intact
cell
structures
remaining
due
synergy
effect
GQDs’
physical
cutting
during
treatment.
Language: Английский
The Research Progress on Photocatalytic Materials for Pollutant Degradation: A Review
Journal of Solar Energy Research Updates,
Journal Year:
2024,
Volume and Issue:
11, P. 93 - 102
Published: Dec. 30, 2024
Photocatalytic
technology,
as
a
clean,
green,
and
sustainable
method
for
pollutant
degradation,
has
significant
scientific
research
value
practical
application
significance
in
the
field
of
water
pollution
control.
Currently,
focus
photocatalysis
is
on
developing
efficient,
stable,
low-cost
photocatalysts.
Researchers
are
enhancing
light
absorption
capacity,
electron-hole
separation
efficiency,
degradation
rate
photocatalysts
by
designing
novel
photocatalysts,
such
S-type
heterojunctions,
Z-scheme
structures,
precious
metal
doping,
non-metal
regulation.
The
mechanistic
study
photocatalytic
process,
especially
separation,
migration,
transfer
mechanisms
photogenerated
carriers,
provides
theoretical
support
optimization
design
At
present,
there
various
types
catalysts
pollutants,
including
oxide
(e.g.,
TiO2,
ZnO),
platinum,
gold,
silver),
carbon-based
graphene,
carbon
nanotubes),
composite
oxide-carbon-based
catalysts).Each
type
catalyst
shown
performance
improving
efficiency
expanding
range,
but
also
faces
challenges
limited
poor
stability,
high
cost.
Composite
significantly
improve
through
synergistic
effects,
excelling
high-concentration
pollutants.
Future
will
further
optimizing
catalysts,
particularly
stability.
remains
research,
exploration
effects
between
different
materials.
same
time,
issues
long-term
recyclability,
selectivity
need
to
be
addressed
their
large-scale
application.
Language: Английский