Catalysts,
Journal Year:
2024,
Volume and Issue:
14(7), P. 464 - 464
Published: July 19, 2024
In
this
study,
Ag-AgCl/attapulgite
(Ag-AgCl/ATP)
composites
were
synthesized
via
a
direct
precipitation
method
using
ATP
nanorods
as
catalyst
supporter.
helped
to
increase
the
dispersion
of
Ag-AgCl
particles
and
broaden
light
absorption
spectrum,
which
would
also
help
active
site
promote
degradation
tetracycline
(TC).
The
photocatalytic
activity
Ag-AgCl/ATP
was
evaluated
through
TC,
identifying
loading
amount
Ag-AgCl,
concentration
reaction
temperature
critical
factors
influencing
activity.
Specifically,
optimal
conditions
observed
when
75%,
resulting
in
efficiency
77.65%.
Furthermore,
highest
(85.01%)
achieved
with
TC
20
mg/L
at
°C.
Radical
trapping
experiments
suggested
that
superoxide
anion
radical
(·O2−)
primary
species
process,
although
hydroxyl
radicals
(·OH)
holes
(h+)
contributed.
Reusability
tests
confirmed
exhibited
excellent
stability
could
be
effectively
reused.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 28, 2024
Abstract
MXene-based
(nano)materials
have
recently
emerged
as
promising
solutions
for
antibiotic
photodegradation
from
aquatic
environments,
yet
they
are
limited
by
scalability,
stability,
and
selectivity
challenges
in
practical
settings.
We
formulated
Fe
2
O
3
-SiO
/MXene
ternary
nano-photocomposites
via
coupled
wet
impregnation
sonochemistry
approach
optimised
tetracycline
(TC)
removal
(the
second
most
used
worldwide)
water
using
response
surface
methodology-central
composite
design
(RSM-CCD).
The
photocatalysts
containing
various
loading
of
/SiO
(5–45
wt%)
on
the
MXene
with
a
range
calcination
temperatures
(300–600
°C)
RSM
optimisation
were
synthesised,
characterised
regarding
crystallinity
properties,
morphology,
binding
energy,
light
absorption
capability,
analysed
TC
degradation
efficiency.
25FeS/MX-450
among
all
samples
demonstrated
superior
efficiency
photocatalytic
(98%)
under
conditions
(TC
degradation:
39.75
mg/L,
time:
68.28
min,
pH:
5.57,
catalyst
dosage:
0.75
g/L).
developed
area,
reduced
band
gap
due
to
FeS
nanoparticles
incorporation
improved
within
visible
spectrum,
played
crucial
role
heterostructure
matrix,
enhancing
photogenerated
carriers’
separation
transportation
capabilities.
photoreduction
mechanism
involved
electron
transfer
MXene,
engaging
produce
•O
−,
attributed
high
mobility
MXene.
Our
findings
such
materials
can
underscore
considerable
potential
nanomaterials
pharmaceutical
waterways.
