Ferric
sulfide
(FeS)
has
been
widely
used
as
an
activator
of
persulfate
(PS)
for
the
degradation
Atrazine
(ATZ)
in
water
due
to
its
high
activity
and
non-toxic
nature.
However,
a
major
drawback
FeS
is
tendency
agglomerate
easily,
resulting
poor
reusability
low
efficiency.
To
address
this
issue,
stable
heterogeneous
MMT-nFeS
prepared
from
pyrite
montmorillonite
was
synthesized
by
modifying
with
montmorillonite.
SEM,
TEM,
XRD
analysis
indicated
that
uniform
distribution
modified
material
between
layers
beneficial
improving
stability
activation
efficiency
material.
Under
same
experimental
conditions,
control
experiment
results
pure
activated
PS
ATZ
showed
system
good
removal
rate,
achieving
rate
92%.
Furthermore,
demonstrated
maintained
over
83%
even
after
ten
cycles.
The
quenching
experiments,
EPR
tests
XPS
verified
primary
active
species
reaction
are
•OH
SO4•−,
efficient
result
synergistic
effect
SO4•−
Fe(IV).
sulfur
substances
promoted
cycling
Fe
(IV)
(III)
(II).
materials
provided
promising
solution
remediation
contaminated
triazine
herbicides.
