International Journal of Molecular Sciences,
Год журнала:
2022,
Номер
23(15), С. 8422 - 8422
Опубликована: Июль 29, 2022
Photocatalytic
degradation
of
harmful
organic
matter
is
a
feasible
and
environmentally
friendly
method.
Bi2WO6
has
become
hotspot
photocatalysts
because
its
unique
layered
structure
visible
light
response.
In
the
present
study,
Sn
doping
was
adopted
to
modified
by
hydrothermal
The
Sn-doped
were
characterized
XRD,
SEM,
TEM,
BET,
XPS,
PL,
DRS,
respectively.
results
show
that
shows
three-dimensional
(3D)
flower-like
morphology,
which
composed
two-dimensional
(2D)
nanosheets.
Sn4+
ions
enter
into
lattice,
producing
degree
lattice
distortion,
in
favor
reducing
recombination
photogenerated
electrons
holes.
Moreover,
specific
surface
area
significantly
increased
after
doping,
beneficial
providing
more
active
sites.
photocatalytic
2%Sn-Bi2WO6
exhibits
highest
activity.
After
60
min
irradiation,
methylene
blue
(MB)
increases
from
80.6%
for
pure
92.0%
2%Sn-Bi2WO6.
first-order
reaction
rate
constant
0.030
min-1,
1.7
times
than
Bi2WO6.
Catalysts,
Год журнала:
2022,
Номер
12(12), С. 1503 - 1503
Опубликована: Ноя. 24, 2022
MgAl
and
MgAl/ZnO
coatings
were
prepared
by
plasma
electrolytic
oxidation
(PEO)
of
AZ31
magnesium
alloy
in
aluminate
electrolyte
(5
g/L
NaAlO2)
without
with
addition
ZnO
particles
various
concentrations.
The
coating
was
partially
crystallized
contained
MgO
MgAl2O4
phases.
to
had
no
significant
effect
on
the
surface
morphology
formed
coatings,
while
Zn
content
increased
particle
X-ray
diffraction
confirmed
incorporation
coatings.
photodegradation
methyl
orange
(10
cm3
8
mg/L)
used
measure
photocatalytic
activity
(PA)
PA
after
h
irradiation
around
58%,
concentrations
4
g/L,
12
69%,
86%,
97%,
respectively.
International Journal of Molecular Sciences,
Год журнала:
2022,
Номер
23(15), С. 8422 - 8422
Опубликована: Июль 29, 2022
Photocatalytic
degradation
of
harmful
organic
matter
is
a
feasible
and
environmentally
friendly
method.
Bi2WO6
has
become
hotspot
photocatalysts
because
its
unique
layered
structure
visible
light
response.
In
the
present
study,
Sn
doping
was
adopted
to
modified
by
hydrothermal
The
Sn-doped
were
characterized
XRD,
SEM,
TEM,
BET,
XPS,
PL,
DRS,
respectively.
results
show
that
shows
three-dimensional
(3D)
flower-like
morphology,
which
composed
two-dimensional
(2D)
nanosheets.
Sn4+
ions
enter
into
lattice,
producing
degree
lattice
distortion,
in
favor
reducing
recombination
photogenerated
electrons
holes.
Moreover,
specific
surface
area
significantly
increased
after
doping,
beneficial
providing
more
active
sites.
photocatalytic
2%Sn-Bi2WO6
exhibits
highest
activity.
After
60
min
irradiation,
methylene
blue
(MB)
increases
from
80.6%
for
pure
92.0%
2%Sn-Bi2WO6.
first-order
reaction
rate
constant
0.030
min-1,
1.7
times
than
Bi2WO6.
