Matériaux & Techniques,
Год журнала:
2023,
Номер
111(5-6), С. 505 - 505
Опубликована: Янв. 1, 2023
In
this
work,
vanadate-fluorapatite,
V
2
O
5
/Ca
10
(PO
4
)
6
F
,
nanocrystals
were
successfully
synthesized
through
a
straightforward
one-step
co-precipitation
method.
This
method
was
based
on
two
toxic
solid
wastes,
which
are
mainly
generated
as
by-products
during
sulfuric
acid
manufacturing
and
in
the
phosphate
industry.
The
wastes
phosphogypsum
source
of
calcium
vanadium
pentoxide
vanadate.
comparison
to
numerous
conventional
methods
for
FAP
synthesis,
innovative
is
not
laborious,
complex,
cost-effective,
environmentally
friendly,
thanks
recovery
wastes.
Furthermore,
it
consists
mixing
various
contents
anhydrous
gypsum
with
phosphoric
acid,
pentoxide,
ammonium
fluoride
at
one
time
room
temperature
no
further
adjustment
pH.
Several
physicochemical
characterization
techniques
used,
including
X-ray
Diffraction
(XRD),
Fourier
Transform
Infrared
Spectroscopy
(FT-IR),
Ultraviolet-Visible
(UV-vis).
Whereas
SEM
analysis
crystals
obtained
showed
nanometer-scale
fluorapatite
crystallites
obtained.
results
offer
exciting
potential
applying
prepared
nanomaterial
both
photocatalysis
pollution
removal.
They
hold
great
promise
expected
generate
significant
interest
these
fields.
The Journal of Physical Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
The
mechanism
and
consequently
the
magnitude
of
vibrational
relaxation
molecules
on
surfaces
differ
significantly
between
insulators
metals,
making
energy
transfer
at
NO/metal
versus
NO/insulator
interface
a
canonical
example
in
field.
We
report
influence
surface
temperature,
initial
state,
incident
translational
probability
vibrationally
excited
NO(vI
=
3
vI
11)
undergoing
direct
scattering
from
thin
films
vanadium
dioxide
(VO2)
across
Mott
transition
68
°C.
At
that
thin-film
VO2
transforms
insulating
to
metallic
phase,
exhibiting
∼4
orders
drop
resistivity.
As
undergoes
transition,
T
>
°C,
we
observe
surprisingly
small,
yet
measurable
enhancement
due
phase
VO2.
magnitudes
for
3)/VO2
11)/VO2
are
∼2
∼20%,
respectively─considerably
lower
than
expected,
based
S-shaped
dependence
asymptotic
affinity
level,
observed
diatomic
coinage
metal
surfaces.
By
analyzing
distinct
dynamic
features
NO
scattering,
including
state
incidence
energy,
as
well
relationship
rotational
excitation
inelasticity,
explain
low
using
electron
model.
Optics Continuum,
Год журнала:
2024,
Номер
3(11), С. 2232 - 2232
Опубликована: Ноя. 4, 2024
This
study
has
described
the
development
and
computational
evaluation
of
Cu
3
VS
4
(CVS)
based
highly
potential
thin
film
solar
cell
where
ZnS
is
exploited
as
transparent
layer
V
2
O
5
back
surface
field
(BSF)
layer,
respectively,
to
form
n-ZnS/p-Cu
/p
+
-V
hetero-junction.
The
investigation
highlighted
significant
influence
BSF
on
device
performance.
standalone
exhibits
an
open
circuit
voltage
(V
OC
)
0.87
V,
a
short
current
(J
SC
33.89
mA/cm
,
fill
factor
(FF)
86.72%,
power
conversion
efficiency
(PCE)
25.68%.
incorporation
enhanced
PCE
28.33%,
reached
0.94
J
34.39
FF
87.47%.
improvement
in
been
attributed
leading
increased
built-in
reduced
recombination
velocity
at
interfaces.
These
findings
suggest
promising
prospects
for
advancing
high-efficiency
CVS
dual-heterojunction
(DH)
PV
cells
coming
days.
