Bulletin of the Chemical Society of Japan,
Год журнала:
2025,
Номер
98(1)
Опубликована: Янв. 1, 2025
Abstract
Incorporating
mesoporous
structures
into
various
materials
can
provide
abundant
active
sites
and
facilitate
smooth
diffusion,
their
effectiveness
has
been
demonstrated
across
a
range
of
material
types.
However,
despite
the
development
numerous
materials,
first-generation
(e.g.,
silica-based
compositions)
have
limited
applications
due
to
poor
electrical
conductivity
compositional
diversity,
necessitating
additional
processing
for
widespread
utilization.
Our
group
first
proposed
synthesis
metals
using
solution-based
soft-templating
method
based
on
self-assembly
micelles,
marking
significant
advancement
in
materials.
This
effective
process
recently
extended
chalcogenides.
Chalcogenides
garnered
attention
intriguing
optical,
electrical,
electrochemical
properties
arising
from
distinctive
electronic
structures.
Mesoporous
chalcogenides
found
effectively
enhance
these
properties.
paper
provides
comprehensive
review
chalcogenides—representing
second-generation
(mesoporous
2.0)—with
specific
examples.
goal
is
inform
readers
about
insights
further
research.
Journal of environmental chemical engineering,
Год журнала:
2024,
Номер
12(3), С. 113073 - 113073
Опубликована: Май 14, 2024
Although
heterogeneous
photocatalysis
has
been
recognized
as
a
promising
technology
for
decontaminating
and
disinfecting
municipal
industrial
wastewater
over
the
last
few
decades,
it
not
yet
successfully
transitioned
from
laboratory-scale
research
to
real-world
applications.
This
limited
progress
is
attributed
inherent
physicochemical
properties
of
most
photocatalytic
materials
available,
which
exhibit
reduced
photoefficiency
under
visible
light
irradiation,
along
with
multiple
engineering
considerations.
comprehensive
review
delves
into
intricate
dynamics
reactions
kinetics,
exploring
several
types
reactors
elucidating
significance
employed
in
treatment.
critical
survey
systematically
examines
effectiveness
different
such
titania,
zinc
oxide
graphitic
carbon
nitride
are
commercially
applied
reactor
systems.
Understanding
role
these
essential
address
challenges
associated
Furthermore,
discussion
extends
beyond
technical
aspects
encompass
broader
landscape
hindering
commercialization
widespread
adoption
technologies.
By
critically
evaluating
challenges,
minireview
aims
provide
valuable
insights
researchers,
engineers,
policymakers
seeking
advance
implement
treatment
on
scale.
synthesis
knowledge
consolidates
current
state
field
outlines
future
prospects
overcoming
barriers
optimizing
potential
processes
environmental
remediation.
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 3584 - 3594
Опубликована: Фев. 13, 2025
Photocatalytic
hydrogen
peroxide
(H2O2)
production
via
the
oxygen
reduction
reaction
(ORR)
provides
a
promising
and
energy-saving
alternative
to
traditional
energy-intensive
anthraquinone
process.
Nevertheless,
how
decrease
energy
barrier
of
two-electron
(2e–)
ORR
process
photosynthesize
H2O2
efficiently
is
still
challenging.
Herein,
three
hydroxyl-functionalized
donor–acceptor
covalent
organic
frameworks
(COFs)
are
synthesized
for
photocatalytic
under
visible-light
irradiation
(420
≤
λ
780
nm).
It
observed
that
dihydroxyl
functionalization
(2,5-DhaTph
2,3-DhaTph)
facilitates
transportation
photogenerated
carriers
between
acceptor
donor
units
accelerates
kinetics
rate-limiting
step
when
comparing
with
monohydroxyl
(2-DhaTph).
Further,
2,5-DhaTph
para-position
hydroxyl
shows
higher
photosynthesis
efficiency
than
2,3-DhaTph
(ortho-positioned
hydroxyl),
probably
due
greater
exposure
catalytically
active
sites.
This
supported
by
better
structural
symmetry
2,5-DhaTph,
which
contributes
crystallinity
specific
surface
areas.
Electron
paramagnetic
resonance
(EPR)
spectra
theoretical
calculations
show
produces
*OOH
intermediates
reduced
barrier,
resulting
in
high
rate
2103.1
μmol
h–1
g–1.
Regulating
amount
substituents
their
location
on
COFs
an
effective
strategy
boost
carrier
transfer
reduce
O2-to-H2O2
conversion.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
Abstract
Photosynthesizing
H
2
O
from
real
seawater
is
a
promising
and
green
avenue
but
suffers
salt‐deactivated
effects
with
limitations
on
stability
photocatalytic
activity.
Herein,
by
the
Pictet–Spengler
reaction,
two
fully
conjugated
thieno[3,2‐c]pyridine‐linked
covalent
organic
frameworks
(named
TBA‐COF
TCA‐COF)
are
synthesized
for
photoproduction
first
time.
Without
sacrificial
agents
in
,
TCA‐COF
exhibit
impressive
generation
rates
of
8878
6023
µmol
g
−1
h
solar‐to‐chemical
conversion
efficiency
0.62%
0.42%,
respectively,
superior
to
their
Schiff
base
analogs.
Further
experimental
theoretical
investigations
reveal
that,
compared
imine‐linkage
counterparts,
one‐pot
cyclized
TCA‐COF,
reaction
improves
charge
carrier
separation
efficiency,
alters
photoreduction
center
triazine
benzene
parts
pyridine
units,
modulates
energy
band
structures
drive
2e
−
oxygen
reduction
water
oxidation
thereby
enhances
photosynthetic
Notably,
seawater‐produced
flow
reactors
packed
can
be
directly
utilized
E.
coli
sterilization.
The
present
study
highlights
construction
robust
COFs
thieno[3,2‐c]pyridine
linkage
via
sustainable
producing
seawater.
Abstract
Since
2020,
covalent
organic
frameworks
(COFs)
are
emerging
as
robust
catalysts
for
the
photosynthesis
of
hydrogen
peroxide
(H
2
O
),
benefiting
from
their
distinct
advantages.
However,
current
efficiency
H
production
and
solar‐to‐chemical
energy
conversion
(SCC)
remain
suboptimal
due
to
various
constraints
in
reaction
mechanism.
Therefore,
there
is
an
imperative
propose
improvement
strategies
accelerate
development
this
system.
This
comprehensive
review
delineates
recent
advances,
challenges,
utilizing
COFs
photocatalytic
production.
It
explores
fundamentals
challenges
(e.g.,
oxygen
(O
)
mass
transfer
rate,
adsorption
capacity,
response
sunlight,
electron‐hole
separation
efficiency,
charge
selectivity,
desorption)
associated
with
process,
well
advantages,
applications,
classification,
preparation
purpose.
Various
enhance
performance
highlighted.
The
aims
stimulate
further
advancements
discusses
potential
prospects,
application
areas
field.
Inorganic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(16), С. 4914 - 4973
Опубликована: Янв. 1, 2024
This
review
summarizes
advancements
in
g-C
3
N
4
-based
direct
Z
and
S-scheme
heterostructures
for
solar
H
2
O
synthesis,
exploring
advanced
characterization
methods
to
verify
the
charge
transfer
mechanism.
