La-doped Ti/Sb-SnO2 electrode enhanced removal of microplastics by advanced electrocatalysis oxidation process (AEOP) strategy
Abstract
Microplastics
(MPs)
in
the
aqueous
environments
has
attracted
widespread
attention
because
of
its
potential
risk
to
human
health
.Its
high
stability
makes
it
difficult
be
degraded
and
long
term
presence
environment.
Therefore,
is
crucial
find
an
efficient
clean
technology
remove
microplastics
water.
The
advanced
electrocatalysis
oxidation
process
(AEOP)
shows
great
for
application.
In
this
work,
We
focused
on
preparing
Ti/Sb-SnO2
electrodes
doped
with
different
rare
earth
elements
(La,
Ce,
Sm
or
Nd)
as
active
layer
by
sol-gel
method.
electrooxidation
system
efficiently
MPs
solution.
optimal
parameters
removal
were
electrode
spacing
1.5
cm,
current
density
46.67
mA
cm-2,
Na2SO4
electrolyte
concentration
0.22
mol·L-1,
initial
solution
pH
7.
After
3
h,
rate
Ti/La-Sb-SnO2
reached
28.3
%,
which
was
higher
than
Ti/Ce-Sb-SnO2,
Ti/Sm-Sb-SnO2,
Ti/Nd-Sb-SnO2
electrode,
rates
increased
8.23
10.13
16.28
%
77
respectively.
Electrochemical
performance
tests
•OH
(Hydroxyl
radicals)
generation
results
indicated
that
surface
had
abundant
sites,
promoted
formation
degrade
effectively.
summary,
element-doped
provides
technological
support
electrooxidative
from
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Июнь 27, 2024
Язык: Английский
