Combined
with
the
abundant
pores
of
porous
materials
and
excellent
photoelectric
properties
conjugated
polymers,
microporous
polymers
(CMPs)
have
a
broad
application
prospect
in
photocatalytic
degradation
organic
dyes.
Herein,
two
kinds
CMPs
containing
phenolic
hydroxyl
groups,
CMP-OH1
CMP-OH2,
were
prepared
by
Sonogashira−Hagihara
coupling
reaction,
which
used
as
metal-free
photocatalysts
for
cationic
For
first
time,
effect
groups
content
on
performance
was
discussed.
The
hollow
nanosphere
had
surface
defect
sites
that
facilitated
separation
photogenerated
electron-hole
pairs,
enhanced
activity
CMP-OH1.
Under
visible
light
irradiation,
efficiency
Methylene
blue
(MB)
reached
99.5%
within
60
min,
while
Rhodamine
B
(RhB)
attained
99.9%
30
min.
After
5
cycles,
rate
dyes
exceeded
92%.
Moreover,
higher
functional
enabled
to
narrower
band
gap,
capture
electric
carrier
mobility,
conducive
enhancing
performance.
Notably,
mechanism
examined,
superoxide
anion
radical
(·O2−)
being
principal
active
substance
produced
formed
during
This
work
opens
up
new
way
treating
dye-contaminated
water
groups.
npj Clean Water,
Journal Year:
2023,
Volume and Issue:
6(1)
Published: Nov. 30, 2023
Abstract
Both
piezoelectricity
and
self-Fenton
catalysis
are
effective
ways
to
degrade
water
pollution,
but
little
research
has
combined
them
construct
a
more
efficient
pollution
treatment
method.
Here,
Fe-doped
SnS
2
(Sn
1-x
Fe
x
S
)
piezoelectric
system
was
constructed,
which
shows
superior
performance.
The
best
properties
of
the
Sn
0.97
0.03
were
verified
by
degrading
rhodamine
B
(RhB).
toxicity
analysis
degradation
intermediates
solutions
confirmed
that
RhB
decreased
after
degradation.
In
addition,
Kelvin
probe
force
microscopy
photoelectrochemical
better
.
It
demonstrated
enhancement
systematic
lattice
defects
formation
as
an
active
center
in
RhB.
this
work,
technology
is
constructed
remove
organic
pollutants
from
water,
significant
for
developing
technology.
