Cell Reports Sustainability,
Journal Year:
2024,
Volume and Issue:
1(4), P. 100058 - 100058
Published: March 26, 2024
When
designing
new
conjugated
microporous
polymers
(CMPs),
major
efforts
are
typically
focused
on
selecting
specific
linkages
and
variations
of
building
blocks
to
control
their
terminal
structure
function.
However,
the
constitutional
isomerism
CMPs
has
seldom
been
considered
so
far
as
a
crucial
aspect.
Herein,
we
successfully
synthesize
pair
isomeric
CMPs,
named
DBP-TEP
(with
phenanthrenequinone
units)
DBQ-TEP
anthraquinone
units).
Benefiting
from
construction
extended
D-π-A
skeleton,
our
characterized
by
low
band
gaps
high
charge
transport
efficiency,
thus
remarkably
enhancing
uranium
photoreduction
performance.
Interestingly,
experiment
results
show
that
adsorption
capacity
is
1.5
times
under
light
irradiation.
Additionally,
both
experiments
in
real-life
theoretical
calculations
prove
phenanthrenonequinone
unit
does
have
profound
effect
photocatalytic
activity,
which
predominantly
attributed
stronger
electronic
push-pull
system
higher
π-conjugated
DBP-TEP.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
11(10)
Published: Dec. 25, 2023
Abstract
Organic
semiconductor
materials
are
considered
to
be
promising
photocatalysts
due
their
excellent
light
absorption
by
chromophores,
easy
molecular
structure
tuning,
and
solution‐processable
properties.
In
particular,
donor‐acceptor
(D‐A)
type
organic
photocatalytic
synthesized
introducing
D
A
units
intra‐
or
intermolecularly,
have
made
great
progress
in
studies.
More
more
studies
demonstrated
that
the
D‐A
combine
effective
carrier
separation,
tunable
bandgap,
sensitive
optoelectronic
response,
an
strategy
for
enhancing
absorption,
improving
exciton
dissociation,
optimizing
transport.
This
review
provides
a
thorough
overview
of
strategies
aimed
at
performance
semiconductors.
Initially,
essential
methods
modifying
materials,
such
as
interface
engineering,
crystal
interaction
modulation,
briefly
discussed.
Subsequently,
delves
into
various
based
on
intramolecular
intermolecular
interactions,
encompassing
small
molecules,
conjugated
polymers,
crystalline
supramolecules,
heterojunctions.
Meanwhile,
energy
band
structures,
dynamics,
redox‐active
sites
under
different
bonding
modes
Finally,
highlights
advanced
applications
photocatalystsand
outlines
prospective
challenges
opportunities.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(30), P. 36404 - 36411
Published: July 18, 2023
Conjugated
microporous
polymer
(CMP)
photocatalysts
with
donor-π-acceptor
(D-π-A)
or
donor-acceptor
(D-A)
structures
have
garnered
great
attention
for
solar-driven
hydrogen
generation
because
of
their
inherent
charge
separation
nature
and
high
surface
area.
Herein,
we
design
a
series
D-π-A-A-type
CMP
to
uncover
the
influence
content
dibenzo[b,d]thiophene-S-S-dioxide
(BTDO)
acceptor
on
photocatalytic
activity.
The
results
demonstrate
that
in
affects
electronic
structure,
availability
reaction
sites,
between
light-generated
electrons
holes,
which
mainly
determine
performance
H2
release.
Benefiting
from
synergy
light
absorption,
hydrophilicity,
active
bare
PyT-BTDO-2
an
optimized
BTDO
exhibits
production
rate
230.06
mmol
h–1
g–1
under
simulated
sunlight,
manifesting
strategy
D-π-A-A
structural
is
efficacious
boosting
photocatalysts.
Macromolecules,
Journal Year:
2023,
Volume and Issue:
56(11), P. 4022 - 4029
Published: May 17, 2023
Visible-light-driven
organic
transformations,
such
as
photocatalytic
reductive
dehalogenation,
are
highly
significant
but
remain
challenging
to
implement
because
of
the
insufficient
charge
separation.
Herein,
we
report
a
facile
strategy
realize
heterogeneous
and
high-efficiency
dehalogenation
under
mild
conditions
via
tuning
exciton
binding
energy
conjugated
microporous
polymers
(CMPs)
with
an
alternating
electron
donor
(D)–acceptor
(A)
structural
motif.
The
integration
acceptors,
especially
strong
ones
(sA),
into
polymer
scaffolds
minimized
energy,
suppressed
carrier
recombination,
facilitated
transfer
effectively.
CMP-CSU11,
featuring
alternative
D–sA
skeleton
lowest
exhibited
superior
efficiency
over
99%
in
only
50
min,
surpassing
state-of-the-art
photoreductive
catalysts,
enabling
broad
scope
substrates
(14
examples),
possessing
extraordinary
recyclability.
This
work
provides
effective
based
on
intramolecular
engineering
develop
photocatalysts
for
task-specific
transformation.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 16, 2024
Abstract
The
burgeoning
field
of
conjugated
microporous
polymers
(CMPs)
has
generated
widespread
interest
due
to
their
potential
as
photocatalysts
for
hydrogen
production
from
water.
Nevertheless,
photocatalytic
performance
is
sometimes
hindered
by
inadequate
charge
separation
and
transfer,
coupled
with
rapid
recombination.
Herein,
a
strategy
enhance
via
the
customization
π
‐bridges
through
modulation
heteroatoms
in
series
donor‐
‐acceptor
(D‐
‐A)
CMPs
proposed.
This
affords
optimized
energy
levels
improved
thus
boosting
efficiency.
Among
various
heteroatom
substitutions,
S‐doped
CMP
(10
mg)
demonstrates
highest
evolution
rate
203
µmol
h
−1
(AQY
450nm
=
7.4%)
under
visible
light
irradiation.
Subsequent
experimental
analysis
reveals
its
superior
can
be
largely
related
minimized
exciton
binding
energy,
facilitated
transfer
efficiency,
impeded
recombination
among
these
heteroatom‐doped
D‐
‐A
CMPs.
research
paves
way
rational
design
modification
organic
semiconductors
advanced
solar‐driven
photocatalysis
promoting
transfer.
