Journal of Magnesium and Alloys,
Journal Year:
2024,
Volume and Issue:
12(5), P. 1880 - 1898
Published: May 1, 2024
This
study
explores
the
potential
of
LDH
flakes
decorated
with
metallic
oxide
nanoparticles
to
function
as
both
anti-corrosion
barriers
against
chloride
anions
and
heterogeneous
photocatalysts
for
tetracycline
degradation
under
visible
light.
The
process
involves
modifying
primarily
MgO-based
inorganic
porous
film
by
growing
a
MgFe
film,
followed
individual
dual
incorporation
SnO2
WO3
nanoparticles.
these
into
matrix
leads
synergistic
interactions,
effectively
sealing
pre-existing
defects
within
facilitating
in-situ
formation
catalytic
sites
through
oxidation
induction
surface
oxygen
vacancy
defects,
which
synergistically
contribute
enhancement
electrochemical
photocatalytic
activities.
enhanced
stability
is
reflected
in
significant
reduction
corrosion
current
density
4
orders
magnitude
compared
unmodified
film.
Additionally,
demonstrates
sustained
functionality,
achieving
(95.5
%)
two
hours.
presents
novel
approach,
highlighting
effectiveness
LDHs
metal
oxides
an
anti-corrosive
agent
photocatalyst,
promising
implications
environmental
remediation
wastewater
purification.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Abstract
A
polyacrylamide
gel
method
has
been
used
to
synthesize
a
variety
of
polyvalent‐transition‐metal‐doped
Ni
position
high
entropy
spinel
oxides
(Ni
0.2
Zn
Mg
Cu
Co
)Al
2
O
4
‐800
°C
(A
)
on
the
basis
NiAl
,
and
catalytic
activity
is
studied
under
synergistic
action
peroxymonosulfate
(PMS)
activation
simulated
sunlight.
The
containing
polyvalent
transition
metals
2+
can
effectively
activate
PMS
efficiently
degrade
levofloxacin
(LEV)
tetracycline
hydrochloride
(TCH)
sunlight
irradiation.
After
90
min
light
exposure,
degradation
percentages
LEV
(50
mg
L
−1
TCH
(100
by
/PMS/vis
system
reach
87.0%
90.2%,
respectively.
superoxide
radicals,
photoinduced
holes,
singlet
dominate
process,
while
hydroxyl
radicals
sulfate
play
only
small
role.
adsorption
energy
charge
density
difference
between
different
systems
are
calculated
functional
theory,
efficiency
combining
with
change
length
O─O
bond
after
adsorption.
mechanism
proposed,
which
provides
new
idea
for
study
in
field
catalysis.
