ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(13), P. 9955 - 9968
Published: June 19, 2024
Sequential
excitation
energy
and
electron
transfer
(ET)
are
ubiquitous
pathways
for
converting
solar
to
chemical
in
photosynthesis.
Mimicking
this
unique
process
synthesis
is
promising
yet
still
a
big
challenge.
Herein,
taking
photosynthesis
as
an
inspiration,
we
demonstrate
interesting
pathway
oxygen
reduction
hydrogen
peroxide
(H2O2),
important
valuable
commodity
chemical.
The
proposed
route
was
verified
on
biomimetic
photocatalyst,
i.e.,
aluminum
porphyrin
metal–organic
framework
nanosheet
(Al–TCPP).
Experimental
investigations
theoretical
calculations
reveal
that
the
dioxygen
molecule
first
converted
highly
active
singlet
intermediate
through
(EET)
then
reduced
H2O2
via
photogenerated
electrons
with
barrier
over
Al–TCPP.
Consequently,
Al–TCPP
shows
32
times
higher
evolution
rate
than
of
pristine
TCPP
counterpart,
wherein
mainly
exists.
This
study
presents
paradigm
mimic
photosynthetic
sequential
electron-transfer
improved
chemicals.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
13(17)
Published: March 8, 2024
Although
being
applied
as
photosensitizers
for
photodynamic
therapy,
covalent
organic
frameworks
(COFs)
fail
the
precise
fluorescence
imaging
in
vivo
and
phototherapy
deep-tissue,
due
to
short
excitation/emission
wavelengths.
Herein,
this
work
proposes
first
example
of
NIR-II
emissive
benzobisthiadiazole-based
COF-980.
Comparing
its
ligands,
structure
COF-980
can
more
efficiently
reducing
energy
gap
(ΔE
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
13(27)
Published: July 27, 2024
Abstract
The
threat
posed
by
antibiotic‐resistant
bacteria
and
the
challenge
of
biofilm
formation
has
highlighted
inadequacies
conventional
antibacterial
therapies,
leading
to
increased
interest
in
photodynamic
therapy
(aPDT)
recent
years.
This
approach
offers
advantages
such
as
minimal
invasiveness,
low
systemic
toxicity,
notable
effectiveness
against
drug‐resistant
bacterial
strains.
Porphyrins
their
derivatives,
known
for
high
molar
extinction
coefficients
singlet
oxygen
quantum
yields,
have
emerged
crucial
photosensitizers
aPDT.
However,
practical
application
is
hindered
challenges
poor
water
solubility
aggregation‐induced
quenching.
To
address
these
limitations,
extensive
research
focused
on
development
porphyrin‐based
nanomaterials
aPDT,
enhancing
efficacy
sterilization
broadening
range
antimicrobial
activity.
review
provides
an
overview
various
utilized
aPDT
eradication
years,
including
porphyrin‐loaded
inorganic
nanoparticles,
polymer
assemblies,
supramolecular
metal–organic
frameworks
(MOFs),
covalent
organic
(COFs).
Additionally,
insights
into
prospects
offered,
highlighting
its
potential
implementation.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(13), P. 9955 - 9968
Published: June 19, 2024
Sequential
excitation
energy
and
electron
transfer
(ET)
are
ubiquitous
pathways
for
converting
solar
to
chemical
in
photosynthesis.
Mimicking
this
unique
process
synthesis
is
promising
yet
still
a
big
challenge.
Herein,
taking
photosynthesis
as
an
inspiration,
we
demonstrate
interesting
pathway
oxygen
reduction
hydrogen
peroxide
(H2O2),
important
valuable
commodity
chemical.
The
proposed
route
was
verified
on
biomimetic
photocatalyst,
i.e.,
aluminum
porphyrin
metal–organic
framework
nanosheet
(Al–TCPP).
Experimental
investigations
theoretical
calculations
reveal
that
the
dioxygen
molecule
first
converted
highly
active
singlet
intermediate
through
(EET)
then
reduced
H2O2
via
photogenerated
electrons
with
barrier
over
Al–TCPP.
Consequently,
Al–TCPP
shows
32
times
higher
evolution
rate
than
of
pristine
TCPP
counterpart,
wherein
mainly
exists.
This
study
presents
paradigm
mimic
photosynthetic
sequential
electron-transfer
improved
chemicals.
