Chimica Techno Acta,
Journal Year:
2023,
Volume and Issue:
10(4)
Published: Oct. 26, 2023
The
electrical
conductivity
of
low
concentrations
lanthanum-doped
SrTiO3
nanocube
ceramics
synthesized
using
the
facile
solvothermal
method
in
mixed
organic
and
inorganic
solvents
with
cetyltrimethylammonium
bromide
(CTAB)
as
a
capping
agent
tert-butyl
amine
(TBA)
mineralizer
was
investigated.
X-ray
diffraction
patterns
confirmed
formation
high-purity
perovskite
phase,
corresponding
to
standard
data
pattern
refinement
results.
particles
sample
were
nanocubes,
whereas
La-doped
more
uniform
size
shape,
shown
TEM
images.
FT-IR
spectrum
vibration
CH3-N+
groups
from
CTAB
TBA,
indicating
an
electrostatic
interaction
between
their
functional
particle
surface.
Substitution
La3+
ions
at
increased
compared
undoped
sample.
Lanthanum
donates
excess
electrons,
thereby
increasing
number
electron
carriers,
which
causes
reduction
band
gap
energy
according
UV-DRS
analysis
Tauc
equation.
Heterogeneous
photocatalysis
coupled
with
peroxymonosulfate
(PMS)
activation
is
considered
as
an
advanced
water
purification
technology
for
emerging
contaminates
degradation.
In
this
context,
we
introduce
a
novel
coupling
system
that
integrates
PMS
metal-free
visible
light-driven
photocatalysis,
utilizing
boron
doped
C3N5
(BCNs),
the
objective
of
swiftly
eliminating
tetracycline
(TC).
With
commendable
traits
including
robust
response
to
light,
n→π*
electronic
transitions
and
narrow
bandgap,
3BCN
optimized
from
BCNs,
exhibited
superior
catalytic
activity
in
activation.
3BCN/PMS/vis
system,
degradation
efficiency
TC
reached
88.6%,
observed
rate
constant
(kobs)
0.0222
min-1
removal.
Moreover,
real
matrices
tap
water,
landscape
secondary
effluent,
consistently
maintained
high
stable
pollutant
removal
efficiency.
To
elucidate
underlying
mechanisms,
origins
reactive
species
(h+,
SO4-•,
•OH
1O2)
were
identified
enhanced
pathways
PMS-based
photocatalytic
systematically
investigated.
Based
on
theoretical
calculations,
generation
pathway
oxygen
involving
oxidation
reduction
over
region
atom
neighboring
N
BCN
was
unraveled.
The
catalyst
employed
flow-through
device
explore
its
potential
practical
application.
results
showed
continuous
impressive
efficient
achieved
93%
during
32
h
operation.
Our
findings
underscore
substantial
promise
chemical-photocatalysis
synergy
environment
remediation,
offering
feasible
approach
optimize
performance
materials
photo-catalytic
antibiotics.
Chimica Techno Acta,
Journal Year:
2023,
Volume and Issue:
10(4)
Published: Oct. 26, 2023
The
electrical
conductivity
of
low
concentrations
lanthanum-doped
SrTiO3
nanocube
ceramics
synthesized
using
the
facile
solvothermal
method
in
mixed
organic
and
inorganic
solvents
with
cetyltrimethylammonium
bromide
(CTAB)
as
a
capping
agent
tert-butyl
amine
(TBA)
mineralizer
was
investigated.
X-ray
diffraction
patterns
confirmed
formation
high-purity
perovskite
phase,
corresponding
to
standard
data
pattern
refinement
results.
particles
sample
were
nanocubes,
whereas
La-doped
more
uniform
size
shape,
shown
TEM
images.
FT-IR
spectrum
vibration
CH3-N+
groups
from
CTAB
TBA,
indicating
an
electrostatic
interaction
between
their
functional
particle
surface.
Substitution
La3+
ions
at
increased
compared
undoped
sample.
Lanthanum
donates
excess
electrons,
thereby
increasing
number
electron
carriers,
which
causes
reduction
band
gap
energy
according
UV-DRS
analysis
Tauc
equation.
