Langmuir,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Constructing
alternating
donor–acceptor
(D–A)
units
within
g-C3N4
represents
an
effective
strategy
for
enhancing
photocatalytic
performance
through
improved
charge
carrier
separation
while
concurrently
addressing
energy
shortages
and
facilitating
wastewater
remediation.
Here,
a
series
of
D–A-type
conjugated
photocatalysts
(CNBTC-X)
are
prepared
using
as
acceptor
unit
different
masses
5-bromo-2-thiophenecarboxaldehyde
(BTC)
donor
by
one-step
thermal
polymerization.
CNBTC-50
presents
higher
properties
CO2
reduction
coupled
with
tetracycline
(TC)
removal
than
those
g-C3N4,
CNBTC-10,
CNBTC-30,
CNBTC-70.
The
introduction
the
unique
electron-donor–acceptor
structure
effectively
drives
transfer
photoinduced
carriers
reducing
internal
hindrance.
Photocatalytic
experiments
reveal
that
photocatalyst
achieves
up
to
94.6%
TC
under
visible
light
irradiation
conditions.
Compared
pristine
degradation
reaction
rate
constant
is
significantly
increased
about
3.87
times.
study
examines
influence
various
parameters
on
activity,
including
catalyst
concentration,
pH,
concentration.
Additionally,
LC–MS
utilized
perform
comprehensive
analysis
intermediates
pathways
involved
in
degradation.
Furthermore,
demonstrates
remarkable
achieving
rates
20.83
μmol
g–1
h–1
(CO)
9.36
(CH4),
which
10.68
5.98
times
more
efficient
respectively.
This
work
aims
offer
valuable
guidance
rational
design
nonmetal
D–A-structured
catalysts
integrates
systems
couple
antibiotic
removal.
