Materials Science and Engineering R Reports,
Journal Year:
2024,
Volume and Issue:
160, P. 100826 - 100826
Published: July 17, 2024
Ultrafast
UV
photodetectors
(UV
PDs)
are
crucial
components
in
modern
optoelectronics
because
conventional
detectors
have
reached
a
bottleneck
with
low
integration,
functionalities,
and
efficiency.
Core-shell
metal
oxide
nanobrushes
(MOx
NBs)-based
PDs
enhanced
the
absorption,
tunable
performance,
good
compatibility
for
diversified
applications,
including
imaging,
self-powered
systems,
remote
communications,
security,
wearable
electronics.
developed
complex
hierarchical
or
heterostructured
configurations
that
encapsulate
1D
MOx
nanowires
on
nanostructures
(NSs)
to
transport
high
charge
carrier
mobility
efficiency
by
reducing
scattering
recombination
rates.
This
review
presents
thorough
development
of
core-shell
microstructure
enhancement
detection
response
stability
controlled
parameters
multifunctional
applications.
Significant
roles
NBs-based
exploring
various
growth
techniques
photodetection
mechanisms
their
challenges,
limitations,
prospects,
providing
valuable
insights
propelling
progression
photodetector
technology
this
comprehensive
discussed
meticulously.
The
novelty
lies
distinctive
brush-like
morphology
aspect,
properties,
improved
performance
compared
other
NSs,
rapid
sensitive
(
̴µs-ms)
under
light
illumination.
diverse
photoresponse
applications
incorporating
NBs
carefully
summarized,
which
will
set
roadmap
future
technology.
Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
In
this
work,
pure
ZnO,
SnO
2
,
and
ZnO‐SnO
nanostructured
composites
(Z‐S
heterostructure)
are
fabricated
by
a
facile
environmental
savvy
hydrothermal
method
at
230°C
for
12
hours
followed
high‐temperature
annealing.
The
synthesized
samples
were
examined
to
analyse
the
structural
optical
characteristics
using
XRD,
TEM,
XPS,
UV‐DRS
techniques.
Investigate
photocatalytic
activity
(PCA)
of
Z‐S
heterostructure
decolorization
methylene
blue
(MB)
model
pollutant
in
wastewater
visible
light
irradiation.
XRD
analysis
reveals
that
ZnO
exhibit
hexagonal
wurtzite
structure
tetragonal
rutile
structure.
TEM
micrographs
infer
nanorod‐like
nanoflake‐like
thin
nanosheet‐like
Z‐S.
XPS
evidence
presence
constitutes
elements
Zn
+2
Sn
O
−2
valance
states
along
with
peaks
heterostructure.
band
gaps
(3.37
eV),
(3.6
(2.84
eV)
inferred
analysis,
together
red
shift.
Under
two
illumination,
degradation
efficiency
MB
dye
is
38.55,
32.68,
82.45%.
formation
unique
maximum
departure
charge
carriers
reasons
obtaining
robust
than
pristine
.
process
photocatalyst,
reusability
test
findings,
suggested
separation
technique
customizing
photocatalyst
under
irradiation
presented.
Processes,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2456 - 2456
Published: Nov. 6, 2024
Currently,
several
organic
dyes
found
in
wastewater
cause
severe
contamination
problems
for
flora,
fauna,
and
people
direct
contact
with
them.
This
research
proposes
an
alternative
the
degradation
of
polluting
using
ZnO
nanoparticles
(NPs)
synthesized
by
ecological
route
leaf
root
extracts
Ambrosia
ambrosioides
as
a
reducing
agent
(with
weight/volume
ratio
=
4%).
Scanning
Electron
Microscopy
(SEM)
was
used
to
determine
morphology,
showing
agglomeration
cluster-shaped
NPs.
Using
Transmission
(TEM),
different
sizes
NPs
ranging
from
5
56
nm
were
observed
both
The
composition
structure
nanomaterial
analyzed
infrared
spectroscopy
(FT-IR)
X-ray
diffraction
(XRD),
result
that
have
wurtzite-like
crystalline
crystallite
around
32–37
samples.
Additionally,
bandgap
calculated
Ultraviolet
Visible
Spectroscopy
(UV–Vis),
determining
values
2.82
2.70
eV
root,
respectively.
Finally,
thermogravimetric
analysis
demonstrated
contained
part
after
green
synthesis
process,
high
thermal
stability
Photocatalytic
showed
these
nanomaterials
can
degrade
four
under
UV
irradiation,
reaching
90%
methylene
blue
(MB),
methyl
orange
(MO)
Congo
red
(CR)
at
60,
100
60
min,
respectively,
while
(MR)
almost
achieved
140
min
irradiation.
These
results
demonstrate
it
is
effective
use
formation
NPs,
also
evidencing
their
favorable
application
photocatalytic
dyes.
