ACS Sustainable Chemistry & Engineering,
Journal Year:
2018,
Volume and Issue:
6(11), P. 15503 - 15516
Published: Oct. 7, 2018
The
development
of
high-performance
semiconductor
photocatalysts
using
solar
energy
has
become
a
hot
topic,
which
is
crucial
for
sustainable
future.
However,
construction
nontoxic
and
efficient
catalyst
still
remains
an
enormous
challenge.
Here,
we
uncover
simple
hydrothermal
recalcination
method
to
prepare
novel
potassium
(K)-doped
porous
ultrathin
g-C3N4
(denoted
as
KMCN)
photocatalyst
with
catalytic
performance,
eco-friendly
characteristics,
excellent
stability.
obtained
KMCN
nanosheets
were
applied
the
photodegradation
tetracycline
(TC)
under
different
reaction
condition
simulate
practical
wastewater
treatment.
It
was
found,
that
structure
K+
addition
enhanced
pore
size
specific
surface
area,
they
increased
photoabsorption
region
activity
sites.
optical
properties
systematically
characterized
by
PL,
UV-DRS,
etc.
results
revealed
KMCN(0.05)
sample
possessed
narrowed
band
gap,
lower
recombination
photogenerated
charges,
higher
electron
hole
transfer
efficiency.
Benefiting
from
these
advantages,
demonstrated
photocatalytic
performance
TC
degradation
(85.13%),
approximately
2.88-fold
1.40-fold
increase
compared
bare
(29.60%)
(60.84%),
respectively.
These
suggest
reasonable
way
design
economic
high-efficiency
photocatalysis.
