Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
Abstract
Atomic‐level
modulation
of
covalent
organic
frameworks
(COFs)
structure
for
enhanced
photocatalytic
oxidation
is
highly
important
but
still
challenging.
Herein,
a
series
β‐ketoenamine‐linked
COFs
have
been
synthesized
by
using
2,4,6‐triformyl‐phloroglucinol
(Tp)
as
modular
molecule,
5,5′‐Diamino‐2,2′‐bipyridine
(Bpy),
and
3,6‐Pyridazinediamine
(Dz)
linkers
with
atomic
level
N
sites
substitute
4,4′‐diamino‐bipheny
(BD)
1,4‐phenylenediamine
(Pa)
to
construct
adjustable
performance.
Mechanism
study
reveals
that
in
sites‐based
linkers,
1
O
2
adsorbed
on
the
pore
walls
TpBpy‐COF
(−4.23
kcal
mol
−1
)
TpDz‐COF
(−4.63
higher
adsorption
energy
than
TpBD‐COF
(−2.73
TpPa‐COF
(−2.17
),
enabling
activation
high
catalytic
performance
toward
thioether
almost
>99%
conversion,
outperforming
most
reported
photocatalysts.
Notably,
exhibits
superior
activity
(e.g.,
aromatic
thioethers,
aliphatic
sulfide,
Mustard
Gas
sulfide)
because
its
narrow
bandgap,
fast
charge
separation
transfer
ability,
single‐ended
ability.
This
provides
novel
effective
strategy
modulating
exciton
effects
COFs‐based
photocatalysts
at
level.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(5), P. 2007 - 2049
Published: April 17, 2024
Hydrogen
peroxide
(H2O2),
a
valuable
chemical,
is
widely
used
as
powerful
oxidizing
agent
in
chemical
synthesis,
pharmaceuticals,
medical
disinfection,
and
environmental
treatment
industries.
Currently,
over
95%
of
H2O2
produced
industrially
using
the
anthraquinone
process,
which
associated
with
its
high
energy
consumption
hazardous
byproducts.
Therefore,
photochemical
synthesis
from
water
oxygen
covalent
organic
framework
based
photocatalysts
have
attracted
considerable
attention.
This
review
aims
to
outline
recent
achievements,
challenges
future
prospects
COFs
heterogeneous
for
sustainable
generation.
We
summarize
chronological
development
COFs,
different
mechanisms
involved,
detailed
experiments
quantification
methods
photocatalytic
The
puts
forward
an
outlook,
highlighting
advantages
limitations
anticipate
that
this
will
provide
insight
into
current
progress
inspire
next-generation
production.
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.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 9, 2024
Abstract
The
global
energy
crisis
and
environmental
concerns
are
driving
research
into
renewable
sustainable
conversion
storage
technologies.
Solar
energy,
as
an
ideal
resource,
has
significant
potential
to
contribute
the
goal
of
net‐zero
carbon
emissions
if
effectively
harnessed
converted
a
reliable
storable
form
energy.
Photocatalysts
have
convert
sunlight
chemical
carriers.
In
this
respect,
covalent
organic
frameworks
(COFs)
shown
great
promise
due
their
tunable
structure
on
different
length
scales,
high
surface
areas,
beneficial
optical
properties
such
broad
visible
light
absorption.
This
review
offers
comprehensive
overview
key
developments
in
COF‐based
photocatalysts
for
various
applications,
including
water
splitting,
hydrogen
peroxide
generation,
transformations,
dioxide
nitrogen
reduction.
underlying
mechanisms,
essential
principles
material
design,
structure‐function
relationships
COFs
photocatalytic
applications
discussed.
challenges
faced
by
also
summarized
strategies
enhance
performance
explained,
improving
crystallinity,
regulating
molecular
structures,
tailoring
linkages,
incorporating
cocatalysts.
Finally,
critical
proposed
utilization
photocatalytically
generated
chemicals
value‐added
products.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(6), P. 2276 - 2294
Published: May 10, 2024
Solar-driven
water
splitting
into
hydrogen
and
oxygen
fuels
represents
a
promising
way
for
clean
energy
production
to
achieve
carbon-neutral
future.
The
efficiency
of
photocatalytic
strongly
relies
on
the
development
high-performance
catalysts.
Noteworthily,
covalent
organic
frameworks
(COFs)
offer
distinctive
platform
designing
photo-to-chemical
conversion,
benefiting
from
their
tailorable
structure,
ultrahigh
porosity,
robust
framework,
sufficient
light
absorption,
rich
active
sites.
Herein
we
highlight
systematic
overview
recent
research
progress
using
COFs
half-reactions
overall
splitting.
With
an
aim
shed
understanding
structural
design
COF
photocatalysts
splitting,
various
functional
strategies
are
discussed.
Finally,
major
challenges
future
perspectives
proposed
with
hope
achieving
ongoing
this
emerging
field.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(18), P. 9619 - 9651
Published: Jan. 1, 2024
This
review
focuses
on
advances
in
covalent
organic
framework
(COF)
photocatalysts
for
cross-coupling
reactions,
which
provide
a
greener
catalytic
route
transformations.
