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
ACS ES&T Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 30, 2024
The
activation
of
peroxymonosulfate
(PMS)
to
generate
singlet
oxygen
(1O2)
for
the
removal
emerging
organic
pollutants
(EOPs)
from
complex
aqueous
environments
has
garnered
widespread
attention.
However,
low
efficiency
and
selectivity
current
PMS
1O2
generation
result
in
suboptimal
EOP
degradation.
To
enhance
promote
non-radical
pathway,
non-metal
heteroatoms
with
varying
electronegativities
were
introduced
disrupt
symmetrical
coordination
structure
Fe
active
sites
single-atom
catalysts.
results
showed
that,
B-Fe1/GLCNs/PMS
system,
pseudo-first-order
kinetic
rate
bisphenol
A
(BPA)
degradation
reached
4.435
min–1,
which
is
7.4
times
higher
than
that
unmodified
control
group.
Experimental
theoretical
calculations
demonstrated
doping
altered
electron
density
distribution
at
sites,
thereby
modulating
adsorption
configuration
HSO5–
increasing
1O2.
Additionally,
EOPs
by
produced
intermediate
products
lower
biological
toxicity,
strong
anti-interference
capability.
change
morphology
improved
generation.
This
study
provides
deep
insights
into
designing
high-performance
catalysts
via
regulate
electronic
a
selective
pathway.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(41), P. 28233 - 28246
Published: Jan. 1, 2024
The
photogenerated
electrons
in
C
3
N
5
-CoPc
are
accurately
transferred
to
the
Co
atom
through
phosphate,
and
is
excited
as
a
catalytic
center
produce
H
2
O
.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 9, 2024
Photothermal
catalysis
is
an
emerging
field
with
significant
potential
for
sustainable
chemical
production
processes.
The
merger
of
single-atom
catalysts
(SACs)
and
photothermal
has
garnered
widespread
attention
its
ability
to
achieve
precise
bond
activation
superior
catalytic
performance.
This
review
provides
a
comprehensive
overview
the
recent
progress
SACs
in
catalysis,
focusing
on
their
underlying
mechanisms
applications.
dynamic
structural
evolution
during
processes
highlighted,
current
advancements
future
perspectives
design,
screening,
scaling
up
are
discussed.
aims
provide
insights
into
continued
development
this
rapidly
evolving
field.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
The
multifarious
aromatic
sulfone-decorated
conjugated
polymers
(CPs)
have
recently
been
developed
to
enable
them
be
employed
in
artificial
photocatalysis
with
encouraging
achievements.
