Catalysts,
Journal Year:
2023,
Volume and Issue:
13(3), P. 469 - 469
Published: Feb. 23, 2023
In
this
work,
a
Z-scheme
Bi2WO6/BiO2−x
heterojunction
was
successfully
prepared
using
self-assembly
strategy.
Various
characterization
techniques
demonstrated
that
the
formation
of
not
only
accelerated
separation
photoinduced
carriers
but
also
weakened
recombination
rate
photogenerated
electron–hole
pairs-.
The
composites
had
wider
absorption
edge
than
Bi2WO6
in
range
200–800
nm,
which
improved
photocatalytic
performance
ciprofloxacin
(CIP)
degradation
under
xenon
lamps.
As
result,
composite
exhibited
excellent
activity.
Catalyzed
by
optimal
20%
(0.5
g/L),
removal
CIP
(10.0
mg/L)
91.8%
within
2
h
irradiated
visible
light,
2.37
times
BiO2−x
catalyst.
This
work
will
provide
fresh
perspective
on
construction
visible-driven
photocatalysts
for
wastewater
treatment.
Environmental Engineering Science,
Journal Year:
2023,
Volume and Issue:
40(8), P. 329 - 339
Published: June 2, 2023
ZnO
has
been
known
to
be
an
excellent
photocatalyst
and
production
of
suitable
morphology
by
cheap
methods
increase
catalytic
efficiency
is
important
in
practical
applications.
In
this
study,
a
fast
precipitation
method
was
used
produce
the
carnation-like
improve
performance
removal
tetracycline
hydrochloride
(TCH).
The
precursor
zinc
nitrate,
agents
sodium
hydroxide,
trisodium
were
control
ZnO.
characterization
as-prepared
material
confirmed
X-ray
diffraction,
scanning
electron
microscopy,
Fourier
transform
infrared
spectroscopy,
diffuse
reflectance
ultraviolet-visible,
N2
adsorption/desorption
isotherms.
As
result,
appeared
with
regular
uniform
three-dimensional
consisted
numerous
nanosheets
thickness
0.013
μm.
average
size
flowers
5
addition,
plausible
formation
mechanism
nanoflower
time
proposed.
effects
reaction
conditions
on
thoroughly
examined,
its
compared
those
other
forms
materials.
As-prepared
showed
efficiently
decompose
TCH
rate
constant
89.92%
0.038
min−1,
respectively.
Moreover,
•O2−
h+
key
active
species
decomposition
process.
Catalysts,
Journal Year:
2023,
Volume and Issue:
13(3), P. 584 - 584
Published: March 14, 2023
The
current
study
applies
the
eco-friendly
principle
of
“wastes
treat
wastes”.
By
swift
methods,
a
composite
photocatalyst
was
prepared
from
waste-extracted
oxides,
namely
V2O5,
Ag,
and
ZnO.
metal–lixiviant
complexes
were
used
as
metal
precursors,
where
lixiviants
act
auto-templates
increase
compatibility
between
mixed
metallic
species,
their
controlled
thermal
removal
generates
pores.
tri-constitute
catalyst
doped
with
nitrogen.
constitution,
surface
composition,
optical
properties
catalysts
investigated
by
XRD,
SEM,
TEM,
BET
analysis,
XPS,
diffuse
reflectance,
PL
spectra.
as-prepared
employed
in
photodegradation
Congo
red
dye
(CR)
under
visible
irradiation
at
ambient
temperature.
degree
Ag
dispersion
had
significant
effect
on
bandgap,
did
metal-nonmetal
co-doping.
efficiency
changes
dramatically
time
up
to
120
min,
after
which
it
begins
decrease.
According
pH
effect,
normal
(6.12)
is
optimal.
At
dose
1
g
L−1
an
period
reached
89.9%
83.4%
over
[Ag0.05
ZnO0.05
V2O5(0.90)]
V2O5(0.90)]N,
respectively.
kinetic
depicted
role
mass
transfer
reaction
rate.
obtained
rate
constants
0.995
mole
S−1
0.998
for
