Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 14, 2024
While
being
important
candidate
for
heterogeneous
photocatalyst,
conjugated
polymer
typically
exhibits
random
charge
transfers
between
the
alternating
donor
and
acceptor
units,
which
severely
limits
its
catalytic
efficiency.
Herein,
inspired
by
natural
photosystem,
concept
of
guiding
migration
to
specific
reaction
sites
is
employed
significantly
boost
photocatalytic
performance
linear
polymers
(LCPs)
with
pendant
functional
groups
via
creating
programmed
charge-transfer
channels
from
backbone
moiety.
The
benzothiadiazole,
as
revealed
in
both
situ
X-ray
photoelectron
spectroscopy
(XPS)
density
theory
(DFT)
calculations,
can
act
electron
"reservoir"
that
aggregates
electrons
at
active
sites.
Moreover,
presence
channels,
evidenced
transient
absorption
(TAS),
accelerates
transfer,
preventing
recombination
holes.
As
a
result,
this
elaborately-designed
architecture,
photogenerated
move
smoothly
towards
reduction
sites,
facilitating
O
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
Abstract
Hydrogen
peroxide
(H
2
O
)
is
an
environmentally
friendly
reagent,
and
organic
semiconductors
(OSCs)
are
ideal
photocatalysts
for
the
synthesis
of
H
due
to
their
well‐defined
molecular
structure,
strong
donor‐acceptor
interactions,
efficient
charge
separation.
This
review
discusses
regulatory
mechanisms
functional
group
modifications
in
tuning
photocatalytic
performance
OSCs,
highlighting
relationship
between
structure
catalytic
performance.
For
example,
electron‐regulating
groups,
such
as
cyano
halogen,
induce
dipoles,
facilitating
migration
photogenerated
electrons.
Fluorine
groups
optimize
band
prolong
carrier
lifetime
high
electronegativity.
π‐Conjugated
extension
like
anthraquinone
thiophene,
expand
conjugation,
improve
visible
light
capture,
stabilize
intermediates
through
redox
cycles.
Hydroxyl
enhance
surface
hydrophilicity
promote
activation,
while
imine
bond
protonation
adjusts
distribution
improves
selectivity
cycle
stability.
Multi‐active
site
sulfonic
acid
amide,
accelerate
reaction
kinetics
inhibit
decomposition.
Functional
absorption,
separation,
reactions
electronic
regulation,
intermediate
adsorption
optimization,
proton‐electron
transfer.
Future
work
should
integrate
machine
learning
identify
optimal
combinations
develop
green
functionalization
strategies
photocatalyst
synthesis.
InfoScience.,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Hydrogen
peroxide
(H
2
O
),
an
environmentally
benign
oxidizer,
finds
extensive
applications
in
pulp
bleaching,
wastewater
treatment,
and
medical
sterilization.
Photocatalytic
H
synthesis
via
water
oxygen
activation
on
semiconductor
surfaces
presents
a
sustainable
production
strategy.
Notably,
structurally
tunable
organic
photocatalysts
have
emerged
as
promising
candidates,
which
targeted
molecular
engineering
can
boost
the
photocatalytic
performance
by
enlarging
specific
surface
areas,
extending
light
absorption
ranges,
facilitating
charge
carrier
transport‐separation
dynamics.
Given
growing
significance
of
synthesis,
comprehensive
review
this
field
has
become
imperative.
This
paper
offers
systematic
examination
visible‐light‐driven
using
various
photocatalysts,
including
graphitic
carbon
nitride
(g‐C
3
N
4
resorcinol‐formaldehyde
(RF)
resin,
covalent
frameworks
(COFs),
linear
conjugated
polymers
(LCPs).
The
focus
lies
fundamental
mechanistic
elucidation,
design
reaction
pathways
active
sites,
modification
strategies,
establishment
efficient
systems.
Extensive
studies
correlated
efficiency
with
interfacial
electron
transfer
kinetics
spatial
separation.
Therefore,
we
methodically
analyze
key
determinants
governing
photogenerated
dynamics
present
strategies
for
enhancement.
Furthermore,
discuss
emerging
application
scenarios
enabled
generation.
Importantly,
critically
evaluates
persistent
challenges
cutting‐edge
solutions
visible‐light‐mediated
ultimately
providing
principles
developing
high‐efficiency
photocatalysts.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Glioblastoma
(GBM)
is
a
highly
malignant
intracranial
tumor
with
limited
treatment
options.
Bispecific
T‐cell
engagers
(BiTEs)
are
being
explored
for
GBM
treatment,
but
their
success
hindered
by
inadequate
T
cell
infiltration
and
activation
due
to
the
acidic
immunosuppressive
microenvironment.
Photothermal
immunotherapy
lyses
tumors
activates
immune
responses,
complementing
BiTEs.
This
study
innovatively
employs
donor
engineering
strategy
develop
hemicyanine
dyes
(Hcys)
that
emit
from
near‐infrared
(NIR)
I
NIR
II.
The
Hcy
excellent
properties
encapsulated
in
an
amphiphilic
micelle,
forming
nano
assembly
lactate
oxidase
(PLH1100).
PLH1100
exhibits
spectral
absorption
at
980
nm,
photothermal
conversion
efficiency
of
58.7%,
capability
NIR‐II
imaging.
Besides
ablation,
regulates
lactic
acid
metabolism
immunogenic
death,
improving
microenvironment
promoting
activation.
Further
studies
demonstrate
effectively
kills
human
murine
cells,
inhibits
orthotopic
U87
growth
BALB/c‐nu
mice,
enhances
efficacy
Fn14‐targeted
BiTE
GL261
C57BL/6
achieving
synergistic
“1+1>2”
therapeutic
effect.
Collectively,
this
work
opens
new
pathway
using
Hcy‐based
molecules
combined
drugs
therapy,
significant
clinical
potential.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 29, 2024
Abstract
Conjugated
polymers
(CPs)
have
shown
promising
potential
in
the
field
of
hydrogen
peroxide
(H
2
O
)
photosynthesis.
However,
a
deeper
understanding
interactions
between
building
units
and
specific
functional
groups
within
molecular
skeleton
is
necessary
to
elucidate
mechanisms
driving
H
generation.
Herein,
series
typical
donor‐acceptor
(D‐A)
conjugated
(B‐B,
B‐CN,
B‐DCN)
were
synthesized
by
introducing
different
amounts
cyano
(‐CN)
into
skeleton.
The
strong
electron
withdrawing
properties
can
greatly
promote
effective
separation
transfer
photogenerated
charges
units,
resulting
an
impressive
efficiency
generation
(2128.5
μmol
g
−1
h
for
B‐DCN,
representing
96‐fold
enhancement
compared
B‐B.
More
importantly,
experimental
results
theoretical
calculations
further
revealed
that
introduction
‐CN
markedly
reduce
adsorption
energy
(E
ad
,
while
serving
as
active
site
induce
conversion
crucial
intermediate
superoxide
anions
(⋅O
−
singlet
oxygen
(
1
),
achieving
dual‐channel
(O
→⋅O
→H
→
).
This
work
provides
valuable
insights
design
efficient
photosynthesis
materials.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 14, 2024
Abstract
While
being
important
candidate
for
heterogeneous
photocatalyst,
conjugated
polymer
typically
exhibits
random
charge
transfers
between
the
alternating
donor
and
acceptor
units,
which
severely
limits
its
catalytic
efficiency.
Herein,
inspired
by
natural
photosystem,
concept
of
guiding
migration
to
specific
reaction
sites
is
employed
significantly
boost
photocatalytic
performance
linear
polymers
(LCPs)
with
pendant
functional
groups
via
creating
programmed
charge‐transfer
channels
from
backbone
moiety.
The
benzothiadiazole,
as
revealed
in
both
situ
X‐ray
photoelectron
spectroscopy
(XPS)
density
theory
(DFT)
calculations,
can
act
electron
“reservoir”
that
aggregates
electrons
at
active
sites.
Moreover,
presence
channels,
evidenced
transient
absorption
(TAS),
accelerates
transfer,
preventing
recombination
holes.
As
a
result,
this
elaborately‐designed
architecture,
photogenerated
move
smoothly
towards
reduction
sites,
facilitating
O
2
into
H
,
while
remaining
holes
are
directed
oxidation
centers,
simultaneously
oxidizing
furfuryl
alcohol
furoic
acid.
optimized
photocatalyst
LCP‐BT
demonstrates
competitive
productivity
868.3
μmol
L
−1
h
(9.8
times
higher
than
conventional
LCP‐1)
conversion
over
95
%
after
6
h.
