Nanoscale,
Journal Year:
2023,
Volume and Issue:
15(27), P. 11667 - 11680
Published: Jan. 1, 2023
Surface
contamination
of
materials
by
nitrogenous
impurities
is
a
major
problem
that
can
bias
the
quantification
ammonia
in
photocatalytic
N2
fixation
reactions.
In
this
work,
SrTiO3
nanocubes
were
prepared
using
precursor
and
engineered
with
Ti3+
sites
oxygen
vacancy
defects
one-step
solvothermal
approach.
It
was
observed
synthesized
containing
surface
therefore
rigorous
cleaning
procedure
adopted
to
eliminate
them
best
extent.
The
contribution
unavoidable
deduced
form
adventitious
NH3
employing
control
experiments
realistic
generation
achieved.
found
pristine
showed
no
activity,
whereas
one
defected
highest
formation
under
natural
sunlight
pure
water,
which
ascribed
tuned
defect
sites,
enhanced
area
efficient
separation
photogenerated
charges.
Based
on
experimental
results,
stringent
protocol
has
been
suggested
for
synthesis
while
working
precursors
subsequent
experiments.
Thus,
present
study
provides
simple
affordable
catalyst
studied
application
expands
scope
perovskite
oxide
fabricate
photocatalysts
sustainable
production.
Environmental Science & Technology,
Journal Year:
2017,
Volume and Issue:
51(5), P. 2924 - 2933
Published: Feb. 1, 2017
A
highly
efficient
and
environmentally-friendly
oxidation
process
is
always
desirable
for
air
purification.
This
study
reported
a
novel
carbon
quantum
dots
(CQDs)/ZnFe2O4
composite
photocatalyst
the
first
time
through
facile
hydrothermal
process.
The
CQDs/ZnFe2O4
(15
vol
%)
demonstrates
stronger
transient
photocurrent
response,
approximately
8
times
higher
than
that
of
ZnFe2O4,
indicating
superior
transfer
efficiency
photogenerated
electrons
separation
electron–hole
pairs.
Compared
with
pristine
ZnFe2O4
nanoparticles,
displayed
enhanced
photocatalytic
activities
on
gaseous
NOx
removal
high
selectivity
nitrate
formation
under
visible
light
(λ
>
420
nm)
irradiation.
Electron
spin
resonance
analysis
series
radical-trapping
experiments
showed
reactive
species
contributing
to
NO
elimination
were
·O2–
·OH
radicals.
possible
mechanisms
proposed
regarding
how
CQDs
improve
performance
ZnFe2O4.
are
believed
act
as
an
electron
reservoir
transporter
well
powerful
energy-transfer
component
during
photocatalysis
processes
over
samples.
Furthermore,
toxicity
assessment
authenticated
good
biocompatibility
low
cytotoxity
CQDs/ZnFe2O4.
results
this
indicate
promising
ACS Applied Nano Materials,
Journal Year:
2020,
Volume and Issue:
3(7), P. 6156 - 6185
Published: June 15, 2020
Metal
oxide
semiconductors
with
a
bandgap
between
2
and
4
eV
are
an
important
class
of
compounds
in
the
electronics
industry
for
photocatalysis.
With
demand
these
materials
expanding
rapidly,
especially
field
photocatalysis,
fabrication
nanoscale
metal
particles,
which
increases
surface-to-volume
ratio
thereby
reduces
costs,
is
emphasis
current
research.
For
purpose
another
quality
ability
to
absorb
light
efficiently.
However,
due
wide
semiconductors,
absorptions
limited
UV
region.
Conveniently,
wider
range
wavelengths
physical
properties
can
be
enabled
by
doping
nanoparticles.
Furthermore,
synthesis
doped
oxides
nanoparticle
form
offers
utility
expansive
array
systems,
substrates,
dispersion
media.
reliable
nanosized
colloidal
particles
remains
ongoing
challenge
researchers.
This
manuscript
gives
concise
overview
research
conducted
regarding
visible-light-active
nanoparticles
(NPs)
analyzes
how
impacts
optical
properties,
making
them
active
visible
near-infrared
regions.
The
effects
on
applications
also
summarized.
Given
that
most
commonly
TiO2
ZnO,
this
review
highlights
both
anion-
cation-doped
ZnO
In
addition,
perovskite
(e.g.,
BaTiO3
SrTiO3)
as
well
some
lesser
studied
systems
covered.
work
intended
provide
not
only
broad
existing
but
foundation
development
semiconducting
architectures
next-generation
applications.
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(24), P. 13692 - 13729
Published: Jan. 1, 2021
Recent
progress
of
earth-abundant,
nontoxic
perovskite
oxides,
halides
and
oxyhalides
for
photocatalysis
is
discussed
related
to
composition
structure.
