The
construction
of
heterojunction
photocatalysts
with
high
visible
light
photocatalytic
performance
is
an
effective
strategy
to
solve
the
pollution
antibiotic.
Daul
Z-scheme
BiOBr/Bi2O2.33/g-C3N4
was
fabricated
through
hydrothermal
and
calcination
methods,
which
demonstrates
excellent
degradation
TC
performance.
well-designed
thoroughly
supported
SEM,
XPS,
XRD
other
series
characterization.Besides,
BBCN50
exhibits
optimal
efficiency
97.0%
in
60
min
compared
BB
CN
90.8%,
70.7%,
respectively.
superior
attributed
significantly
broadens
absorption
region
promotes
photogenerated
electron
hole
migration
separation.
Meanwhile,
stability
catalyst
Z-type
charge
transfer
mechanism
have
been
confirmed
cyclic
interpretation
free
radical
capture
research.
Materials,
Journal Year:
2024,
Volume and Issue:
17(4), P. 957 - 957
Published: Feb. 19, 2024
In
the
present
work,
photodegradation
of
Rhodamine
B
with
different
pH
values
by
using
Bi2O3
microrods
under
visible-light
irradiation
was
studied
in
terms
dye
degradation
efficiency,
active
species,
mechanism,
and
pathway.
X-ray
diffractometry,
polarized
optical
microscopy,
scanning
electron
fluorescence
spectrophotometry,
diffuse
reflectance
spectra,
Brunauer–Emmett–Teller,
photoelectron
spectroscopy,
Fourier-transform
infrared
UV–visible
total
organic
carbon,
liquid
chromatography–mass
spectroscopy
analysis
techniques
were
used
to
analyze
crystal
structure,
morphology,
surface
structures,
band
gap
values,
catalytic
performance,
mechanistic
The
photoluminescence
spectra
spectrum
(the
are
2.79
eV)
reveals
that
absorption
extended
visible
region,
which
resulted
a
high
separation
low
recombination
rate
electron–hole
pairs.
results
clearly
indicated
had
removal
efficiencies
about
97.2%,
90.6%,
50.2%
within
120
min
at
3.0,
5.0,
7.0,
respectively.
addition,
mineralization
RhB
evaluated
measuring
effect
on
chemical
oxygen
demand
carbon
value
3.0.
At
same
time,
quenching
experiments
carried
out
understand
core
reaction
species
involved
solution
values.
diffractometer
pre-
post-Bi2O3
showed
BiOCl
formed
Bi2O3,
BiOCl/Bi2O3
heterojunction
after
acid
photocatalytic
degradation.
Furthermore,
substances
possible
mechanism
over
analyzed
based
radical
capture,
analysis,
spectroscopy.
intermediates
photocatalyst
light
also
identified
assistance
Journal of environmental chemical engineering,
Journal Year:
2024,
Volume and Issue:
12(3), P. 112715 - 112715
Published: April 5, 2024
Carbon
quantum
dots
(CQDs)
offer
significant
promise
across
industries
due
to
their
distinctive
optical
properties
and
strong
biocompatibility.
However,
conventional
synthesis
methods
frequently
need
more
precision
in
controlling
nanoparticle
size,
shape,
uniformity,
limiting
versatility
diverse
applications.
Therefore,
this
study
introduced
an
innovative
approach
synthesising
CQDs
by
combining
electrochemical
techniques
with
carbon
dioxide
(CO2)
nanobubbles,
circumventing
the
for
surfactant-based
exfoliation.
According
findings,
synthesised
exhibited
remarkable
properties,
including
a
high
yield
of
26.17%
average
particle
size
2.24
±
1.07
nm.
Such
characteristics
render
them
exceptionally
suitable
portable
sensors
heavy
metal
detection
wastewater.
Moreover,
investigation
revealed
outstanding
selectivity
CQDs,
particularly
towards
iron
(Fe3+)
ions,
but
demonstrated
limited
reactivity
lead
(Pb2+)
copper
(Cu2+)
ions.
The
novel
also
generated
non-toxic
CQD
under
supply
CO2
which
offers
scalable
avenue
developing
advanced
materials
various
applications,
ion
method
that
relied
on
sodium
dodecyl
sulphate
(SDS)
surfactants
without
nanobubbles
yielded
significantly
lower
11.2%.
In
short,
incorporating
enhanced
superior
control
over
shape
synthesized
CQDs.
This
successfully
produced
distinct
morphologies
provided
new
understanding
mechanism,
potential
applications
sensing
environmental
monitoring
water
quality
management.
Water,
Journal Year:
2024,
Volume and Issue:
16(17), P. 2389 - 2389
Published: Aug. 25, 2024
In
this
study,
fusiform
bismuth
(Bi)
was
synthesized,
and
its
photocatalytic
performance,
degradation
mechanism,
pathways
for
removing
rhodamine
B
(RhB)
at
different
pH
levels
were
investigated.
Additionally,
the
morphologies,
structural
characteristics,
surface
electronic
states,
optical
properties,
active
species,
potential
of
RhB
over
Bi
analyzed.
The
comparison
results
before
after
using
revealed
formation
a
Bi/BiOCl
heterojunction
photocatalyst.
At
2.0,
3.0,
5.0,
7.0,
9.0,
exhibited
excellent
activity,
with
removal
efficiencies
~97%,
96.7%,
72.6%,
53.5%,
27.6%,
respectively.
Moreover,
total
organic
carbon
chemical
oxygen
demand
analyses
performed
to
evaluate
mineralization
rates
3.0
7.0.
Furthermore,
effects
catalyst
content,
initial
concentration,
light
source
distance,
inorganic
anions,
reactant
temperature
on
performance
types
species
mechanisms
(3.0
7.0)
elucidated.
appropriate
identified
via
liquid
chromatography–mass
spectrometry
