Physica Scripta,
Год журнала:
2024,
Номер
99(12), С. 125944 - 125944
Опубликована: Окт. 17, 2024
Abstract
In
this
study,
BiOBr
nanoplates
are
synthesized
through
the
hydrothermal
method,
then
samples
have
been
irradiated
by
an
electron
beam
of
10
MeV
energy
to
deliver
doses
100
kGy
and
500
kGy.
XRD
Raman
investigations
corroborated
presence
a
pure
phase
in
all
nanoplate
samples.
The
sharp
narrow
peaks
indicate
well
crystalline
nature
samples,
which
decreases
with
increasing
dose
as
confirmed
decay
peak
intensity.
Conversely,
position
shifts
at
lower
angle
dose.
Structural
factors
including
lattice
parameter,
dislocation
density,
cell
volume,
microstrain,
stacking
fault
found
change
due
irradiation.
We
employed
Debey-Scherrer
formula
(D-S),
Size
Strain
Plot
method
(SSP),
Halder
Wagner
(H-W)
methods
determine
crystal
size
strain
purified
nanoplates.
It
has
that
crystallites
increases
nonlinearly
irradiation
increases.
All
three
aforementioned
calculation
observed
trend.
density
exhibited
opposite
trend
crystallite
size,
they
decreased
increased.
strain,
values
nearly
identical
for
SSP
H-W
procedures,
while
D-S
exhibits
deviation.
tetragonal
structure
active
mode,
we
identified
closely
resembling
those
other
literature
composition,
discussed
respective
section.
Because
their
intriguing
strength,
may
be
suitable
degradation
organic
pollutants
separation
water
photo-electrocatalysis.
Green Energy & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Фев. 1, 2024
CO2
photoreduction
into
carbon-based
chemicals
has
been
considered
as
an
appropriate
way
to
alleviate
the
energy
issue
and
greenhouse
effect.
Herein,
5,
10,
15,
20-tetra
(4-carboxyphenyl)
porphyrin
cobalt(II)
(CoTCPP)
integrated
with
BiOBr
microspheres
formed
CoTCPP/BiOBr
composite.
The
as-prepared
CoTCPP/BiOBr-2
shows
optimized
photocatalytic
performance
for
conversion
CO
CH4
upon
irradiation
300
W
Xe
lamp,
which
is
2.03
2.58
times
compared
that
of
BiOBr,
respectively.
introduced
CoTCPP
significantly
enhanced
light
absorption
properties,
promoted
rapid
separation
photogenerated
carriers
boosted
chemisorption
molecules.
metal
Co2+
at
center
molecules
also
acts
adsorption
molecules,
boosting
convert
CH4.
possible
mechanism
was
explored
by
in-situ
FT-IR
spectra.
This
work
offers
a
new
possibility
preparation
advance
photocatalysts.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(20), С. 9038 - 9049
Опубликована: Май 13, 2024
Although
photooxidation
of
benzyl
alcohol
to
benzaldehyde
in
aqueous
solution
is
an
important
chemical
process,
its
selectivity
cannot
be
readily
controlled
due
the
overoxidation
benzaldehyde.
In
this
study,
a
series
Bi–Mo/CN
photocatalysts
are
synthesized,
and
their
reactivity
under
visible
light
compared.
Bi–Mo/CN-2
exhibits
high
photocatalytic
conversion
(51%)
with
toward
99.9%.
formed
≡Bi–OO•
≡Bi–OOH
selectively
oxidize
via
H-abstraction
pathway
after
O2
photoreduced
on
Bi–Mo/CN,
accompanied
by
formation
H2O2.
Meanwhile,
doped
Mo
utilizes
produced
H2O2
or
produce
≡Mo–O2
peroxo,
which
not
only
contributes
selective
oxidation
but
also
effectively
prevents
This
work
provides
new
insight
into
designing
novel
for
organic
substrates.
