Sustainable Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
8(16), P. 3617 - 3629
Published: Jan. 1, 2024
The
discovery
of
graphdiyne
(GDY)
represents
a
significant
advancement
in
the
field
carbon
allotropes,
and
has
garnered
widespread
attention
for
its
potential
applications
hydrogen
production.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 1, 2024
Abstract
Photocatalytic
water
splitting
for
hydrogen
production
represents
a
crucial
approach
obtaining
green
energy
through
artificial
solar
utilization,
offering
sustainable
method
generation
that
helps
mitigate
shortages
and
protect
the
environment.
Among
numerous
photocatalytic
materials,
covalent
organic
frameworks
(COFs)
have
garnered
significant
attention
intensive
study
from
researchers
due
to
their
distinctive
benefits,
such
as
porosity,
pre‐design
capability,
tunability
at
atomic
level.
Significant
advancements
are
made
in
development
of
enhancement
performance,
comprehension
mechanisms.
In
this
review,
recent
COF‐based
spotlighted,
both
half‐reactions
overall
reactions,
with
particular
emphasis
on
rational
design
COF
structures
regulate
materials'
optical
electrical
properties,
well
fundamental
processes
photocatalysis.
Drawing
current
research
field,
existing
challenges,
potential
opportunities
also
discussed
future
development.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 27, 2024
Abstract
Photocatalysis
leverages
solar
energy
to
overcome
the
thermodynamic
barrier,
enabling
efficient
chemical
reactions
under
mild
conditions.
It
can
greatly
reduce
reliance
on
traditional
sources
and
has
attracted
significant
research
interest.
Reticular
materials,
including
metal‐organic
frameworks
(MOFs)
covalent
organic
(COFs),
represent
a
class
of
crystalline
materials
constructed
from
molecular
building
blocks
linked
by
coordination
bonds,
respectively.
function
as
heterogeneous
catalysts,
combining
well‐defined
structures
high
tailorability
akin
homogeneous
catalysts.
In
this
review,
regulation
light
absorption,
charge
separation,
surface
in
photocatalytic
process
through
precise
molecular‐level
design
based
features
reticular
is
elaborated.
Notably,
for
MOFsmicroenvironment
modulation
around
catalytic
sites
affects
performance
delved,
with
emphasis
their
unique
dynamic
flexible
microenvironments.
For
COFs,
inherent
excitonic
effects
due
fully
nature
discussed
highlight
strategies
regulate
charge‐
and/or
energy‐transfer‐mediated
photocatalysis.
Finally,
current
challenges
future
directions
field,
aiming
provide
comprehensive
understanding
how
be
optimized
enhanced
photocatalysis
discussed.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
Covalent
organic
frameworks
(COFs),
known
for
the
precise
tunability
of
molecular
structures,
hold
significant
promise
photocatalytic
hydrogen
peroxide
(H
2
O
)
production.
Herein,
by
systematically
altering
quinoline
(QN)
linkages
in
triazine
(TA)‐based
COFs
via
multi‐component
reactions,
six
R‐QN‐TA‐COFs
are
synthesized
with
identical
skeletons
but
different
substituents.
The
fine‐tuning
optoelectronic
properties
and
local
microenvironment
is
allowed,
thereby
optimizing
charge
separation
improving
interactions
dissolved
oxygen.
Consequently,
MeO‐QN‐TA‐COF
customized
to
achieve
an
impressive
rate
H
production
up
7384
µmol
g⁻
1
h⁻
under
air
atmosphere
water
without
any
sacrificial
agents,
surpassing
most
reported
COF
photocatalysts.
Its
high
stability
demonstrated
through
five
consecutive
recycling
experiments
characterization
recovered
COF.
reaction
mechanism
further
investigated
using
a
suite
quenching
experiments,
situ
spectroscopic
analysis,
theoretical
calculations.
enhanced
over
2e⁻
oxygen
reduction
oxidation
pathways.
Overall,
crucial
role
linkage
modulation
design
solar‐driven
effective
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
“Molecular
science”
has
long
been
regarded
as
the
golden
rule
to
guide
design
of
organic
materials’
performances
in
past
many
years,
but
some
interesting
phenomena
conventional
aggregation‐caused
fluorescence
quenching
and
new
aggregation‐induced
emission
reflect
that
properties
would
be
changed
from
“molecule”
“aggregate”.
Therefore,
“molecular
theory
faces
certain
limitations
regulating
performance
materials
at
aggregation.
In
this
work,
it
is
discovered
photosensitizer's
contain
reactive
oxygen
species,
which
could
affected
by
changing
molecular
atoms
aggregation
form.
The
introduction
selenium
redshift
improve
species
(ROS)
efficiency.
addition
atomic
effect,
ROS
efficiency
photosensitizers
after
coating
a
polymeric
shell,
is,
production
type
II
singlet
(
1
O
2
)
suppressed,
while
I
superoxide
anion
(O
−•
improved.
This
work
discovers
are
relevant
effect
discussing
deeply
influence
mechanism,
important
research
significance
for
modulating
precisely
promoting
development
photodynamic
therapy.