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
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(47), P. 34938 - 34947
Published: Jan. 1, 2024
Peroxymonosulfate
(PMS)
activation
by
solid
catalysts
for
ciprofloxacin
(CIP)
removal
is
a
promising
method
decontaminating
wastewater.
However,
mainstream
suffer
from
efficiency
and
durability
issues
due
to
mechanical
fragility
structural
instability.
Here,
we
have
developed
durable
calcium
alginate
hydrogel
encapsulating
fluorinated
cobalt
oxyhydroxide
(FCO/CAH),
fabricated
simple
hydrogen-bond-assisted
cross-linking
reaction,
enhance
PMS
complete
CIP
removal.
The
optimized
2-FCO/CAH
could
generate
abundant
singlet
oxygen
(
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.
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
