International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
26(1), С. 196 - 196
Опубликована: Дек. 29, 2024
This
study
presents
a
facile
one-pot
synthesis
method
to
fabricate
BiFeO3-Bi25FeO40-Bi2O3
heterojunction
photocatalysts
with
controllable
compositions
and
pure
phases.
Three
different
binary
heterojunctions
(BiFeO3/Bi25FeO40,
BiFeO3/Bi2O3,
Bi25FeO40/Bi2O3)
ternary
BiFeO3/Bi25FeO40/Bi2O3
were
formed,
all
exhibiting
significantly
enhanced
photocatalytic
performance
for
the
degradation
of
methylene
blue
(MB)
phenol
under
visible
light
irradiation,
outperforming
individual
compositions.
Notably,
BiFeO3/Bi25FeO40
achieved
highest
efficiency
(93.68%
83.3%
MB
phenol,
respectively)
as
well
excellent
stability.
Impressively,
was
even
over
twice
that
BiFeO3
Bi25FeO40,
four
times
higher
than
Bi2O3.
The
activity
is
primarily
attributed
advantageous
S-scheme
band
alignments
facilitate
efficient
charge
separation
enhance
redox
capabilities.
While
other
also
exhibited
improved
efficiency,
each
unique
combination
materials
led
distinct
electronic
structures
diverse
reaction
mechanisms.
simplicity
scalability
method,
combined
remarkable
these
materials,
position
them
highly
promising
candidates
applications
in
environmental
remediation
solar
energy
conversion.
Applied Physics Reviews,
Год журнала:
2025,
Номер
12(1)
Опубликована: Янв. 24, 2025
High-performing
semiconductor
thin
films
are
crucial
components
in
today's
electronic
age,
finding
extensive
applications
devices
and
chips.
Recently,
there
has
been
a
significant
trend
toward
incorporating
lanthanide
elements
into
these
films,
primarily
driven
by
the
escalating
demand
for
photonic
optoelectronic
applications.
The
featured
article
presents
detailed
overview
of
latest
research
advancements
lanthanide-doped
tailored
uses.
This
comprehensive
review
encompasses
principles,
design
considerations,
fabrication
methods,
characterization
techniques
involved
creating
doped
films.
semiconductors
discuss
span
range
materials,
including
wide
bandgap
semiconductors,
perovskites,
two-dimensional
piezoelectric
organic
materials.
further
explores
Finally,
it
delves
current
challenges,
potential
solutions,
future
prospects,
gaps
that
need
to
be
addressed
this
exciting
field.
Chemistry - An Asian Journal,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 20, 2025
Abstract
Solar‐driven
photoelectrochemical
water
splitting
is
a
promising
method
for
generating
renewable
and
sustainable
energy,
as
it
effectively
harnesses
sunlight
to
convert
into
chemical
bonds.
Among
the
many
materials
explored
oxidation,
metal
selenides
stand
out
because
of
their
narrow
band
gaps.
In
this
study,
we
successfully
developed
high‐performance
heterojunction
nanostructure
comprising
p‐type
Bi/Bi
2
Se
3
photocathode
using
facile
solvothermal
efficient
splitting.
Various
characterization
techniques
confirmed
structural
optical
properties
fabricated
nanocomposite.
X‐ray
diffraction
(XRD)
patterns
along
with
Transmission
Electron
Microscopy
(TEM)
images,
indicated
single‐phase
rhombohedral
Bi
crystal
structure,
nanoparticles,
formation
nanocomposite,
while
photoelectron
spectroscopy
(XPS)
energy
dispersive
(EDX)
demonstrated
successful
heterojunctions.
The
as‐prepared
photocatalyst
exhibited
an
impressive
photocurrent
density
395
μAcm
−2
at
0
V
versus
RHE,
which
approximately
eight
times
superior
.
Detailed
electrochemical
revealed
that
high
due
improved
light
harvesting
capability,
enhanced
charge
separation,
suppressed
oxidation
back
reaction.
This
innovative
approach
represents
significant
advancement
in
solar‐driven
production.
Processes,
Год журнала:
2025,
Номер
13(5), С. 1276 - 1276
Опубликована: Апрель 22, 2025
Bismuth
is
a
promising
and
environmentally
safe
metal
widely
used
in
various
industries,
including
electronics,
medicine
metallurgy.
Despite
this,
its
production
associated
with
number
of
technological
difficulties
due
to
the
low
content
bismuth
natural
ores
presence
mainly
as
by-product
lead
processing.
The
present
article
devoted
study
method
increasing
alloys
using
oxygen
oxidation.
It
shown
that
lead,
which
has
high
affinity
for
oxygen,
effectively
oxidized
passes
into
slag
phase,
whereas
concentrated
metallic
phase.
Experiments
were
carried
out
at
650
°C
boric
acid
lower
melting
point
improve
flowability.
As
result
five
enrichment
steps,
alloy
increased
from
4.0%
48.8%.
proposed
demonstrates
selectivity
economic
efficiency,
makes
it
industrial
application.
results
can
be
develop
more
energy-efficient
technologies
enrichment,
especially
relevant
context
growing
demand
industries.
