ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(24), С. 15136 - 15149
Опубликована: Дек. 11, 2024
Here,
we
describe
a
method
for
fine-tuning
the
frontier
orbital
energy
levels
or
redox
potential
of
conjugated
polymer
network
(CPN)
consisting
triazine
and
fluorene
by
systematically
introducing
electron-withdrawing
groups
at
moiety
through
simple
structural
modification.
The
band
gap
CPN
decreases
with
an
increase
in
strength
group,
relative
position
becomes
more
favorable
reactions
like
photocatalytic
aerobic
oxidation,
which
has
been
further
confirmed
theoretical
experimental
studies.
CN
group
9
(CPN3)
shows
maximum
activity
(32%
higher)
compared
to
CPN1
(hydrogen
position)
white
light.
best-performing
catalyst
CPN3
was
employed
under
light,
oxidation
alcohols
carbonyl
boronic
acid
corresponding
alcohol,
show
noteworthy
characteristics
low
loading,
high
yield,
selectivity
broad
substrate
scope
(aliphatic,
aromatic,
biphenyl,
heterocyclic).
exhibited
turnover
frequencies
13.33
10.9
mmol
g–1
h–1
3
W
blue
LED
lights,
respectively,
are
much
higher
than
those
state-of-art
photocatalysts.
recyclability
tested
up
5
cycles
without
change
catalytic
activity.
practical
usefulness
suggested
demonstrated
CPN3-photocatalyzed
gram-scale
synthesis
high-value
chemicals
such
as
acetophenone
from
1-phenylethanol
phenol
phenylboronic
acid.
Macromolecular Rapid Communications,
Год журнала:
2024,
Номер
45(10)
Опубликована: Фев. 26, 2024
Abstract
Chemical
sensing
of
harmful
species
released
either
from
natural
or
anthropogenic
activities
is
critical
to
ensuring
human
safety
and
health.
Over
the
last
decade,
conjugated
microporous
polymers
(CMPs)
have
been
proven
be
potential
sensor
materials
with
possibility
realizing
devices
for
practical
applications.
CMPs
found
unique
among
other
porous
such
as
metal–organic
frameworks
(MOFs)
covalent
organic
(COFs)
due
their
high
chemical/thermal
stability,
surface
area,
microporosity,
efficient
host–guest
interactions
analyte,
exciton
migration
along
π‐conjugated
chains,
tailorable
structure
target
specific
analytes.
Several
CMP‐based
optical,
electrochemical,
colorimetric,
ratiometric
sensors
excellent
selectivity
performance
were
reported.
This
review
comprehensively
discusses
advances
in
CMP
chemical
(powders
thin
films)
detection
nitroaromatic
explosives,
warfare
agents,
anions,
metal
ions,
biomolecules,
iodine,
volatile
compounds
(VOCs),
simultaneous
delineation
design
strategy
principles
guiding
sensitivity
CMP.
Preceding
this,
various
photophysical
mechanisms
responsible
are
discussed
detail
convenience.
Finally,
future
challenges
addressed
field
discussed.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(10), С. 5674 - 5683
Опубликована: Апрель 10, 2024
Effective
adsorption
and
separation
of
organic
pollutants
from
wastewater
are
essential
to
protecting
the
environment
human
health.
In
this
study,
porous
polymers
(PAPOPs)
containing
a
tri(polyhydroxy-phenyl-azo-phenyl)
benzene
skeleton
structure
were
synthesized
through
diazotization
coupling
without
any
catalyst
participation.
It
was
found
that
PAPOPs
have
high
specific
surface
area,
mesoporous
structure,
good
thermal
stability,
electronegativity.
Based
on
these
characteristics,
demonstrated
maximum
capacity
1773.15
mg
g–1
for
rhodamine
B
(RhB),
1091.75
Congo
red,
306.33
tetracycline
hydrochloride.
Furthermore,
also
exhibited
selectivity
an
extremely
fast
rate
RhB.
The
efficiency
did
not
significantly
decrease
even
after
seven
repeated
uses,
indicating
their
broad
application
prospects
in
treatment.
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 11, 2025
Covalent
organic
framework
(COF)-derived
carbon
materials
seamlessly
inherit
the
periodic
porous
architecture
and
high
specific
surface
area
of
their
precursors,
while
simultaneously
enabling
confinement
nanoparticles
in
designated
regions.
This
unique
feature
mitigates
agglomeration,
enhances
intrinsic
properties,
imparts
novel
functionalities
to
resulting
materials.
Consequently,
COF-derived
have
garnered
significant
attention
across
diverse
fields,
including
energy,
environmental
remediation,
biomedical
applications.
Despite
this
burgeoning
interest,
a
comprehensive
review
encompassing
synthesis,
classification,
multifaceted
applications
these
remains
scarce.
In
context,
state-of-the-art
advancements
are
reviewed
systematically
here.
It
categorizes
materials,
delineates
primary
synthesis
strategies,
highlights
versatile
catalysis,
electrochemical
energy
storage,
water
treatment,
sensing,
cancer
therapy.
Lastly,
fresh
insights
into
challenges
future
prospects
paving
way
for
expanded
exploration
utilization
offered
Chinese Journal of Chemistry,
Год журнала:
2023,
Номер
41(23), С. 3484 - 3492
Опубликована: Июль 31, 2023
Comprehensive
Summary
The
use
of
renewable
sources
such
as
solar,
ocean,
geothermal,
and
wind
energy
to
drive
water
electrolysis
reactions
obtain
green
clean
hydrogen
fuels
is
one
the
important
paths
achieve
sustainable
development.
At
present,
most
technologies
need
conduct
corresponding
pre‐processing,
diluting
purifying
dehydration,
which
will
greatly
increase
operating
costs.
development
direct
seawater
electrolytic
process
can
effectively
solve
above
problems.
Here,
we
review
latest
progress
electrode
materials
catalysts
seawater,
discuss
how
design
high
activity
high‐selective
for
with
familiar
impurities
(such
chloride,
metal
ions
biological
organisms)
existing
in
future.
Langmuir,
Год журнала:
2024,
Номер
40(45), С. 24148 - 24161
Опубликована: Окт. 29, 2024
Two-dimensional
donor–acceptor
covalent
organic
frameworks
(COFs)
show
considerable
promise
for
metal-free
and
heterogeneous
photocatalysis
due
to
their
efficient
charge
carrier
separation
exciton
transport
upon
photoexcitation.
To
date,
numerous
photocatalysts
have
been
developed.
However,
they
encounter
several
challenges,
such
as
inadequate
sunlight
harvesting
ability,
poor
photostability,
nonreusability.
Fortunately,
the
emergence
of
COFs
presents
a
promising
solution
these
problems.
Herein,
we
report
an
imine-linked
CzTA–TAPT
COF
featuring
carbazole
electron
donor
triazine
acceptor.
Compared
previously
reported
C2-linker-derived
CzDA–TAPT
COF,
this
C3-linked
exhibits
good
transport.
As
consequence,
it
demonstrates
excellent
photocatalytic
applicability
in
C-3
thiocyanation
imidazo[1,2-a]pyridine
indole
under
ambient
conditions
visible
light.
Moreover,
its
broad
substrate
compatibility
high
recyclability
provide
green
sustainable
approach
imidazopyridine
indole.
best
our
knowledge,
is
first
catalyst
demonstrated
imidazo[1,2-a]pyridine.
These
findings
will
inspire
further
research
development
high-performance
D–A
transformations.
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
42(22), С. 2845 - 2852
Опубликована: Июль 22, 2024
Comprehensive
Summary
Development
of
heterogeneous
molecular
photocatalysts
for
promising
light‐driven
hydrogen
evolution
reaction
(HER)
is
highly
demanding
but
still
challenging.
Here,
we
report
the
blue‐greenish
emitting
dinuclear
metal–organic
halides
as
photocatalyst
by
incorporating
site‐specific
single
copper(I)
atoms
that
exhibit
an
efficient
carbon‐negative
H
2
production.
Interestingly,
electronic
properties,
including
spin
and
charge
density
central
Cu(I)
active
site,
can
be
triggered
substituent
modulation
in
halides,
which
greatly
affect
exciton
dissociation
kinetics
thus
HER
reactivity.
The
optimized
these
drastically
boosts
production
rate
from
1250
to
3130
μmol·g
–1
·h
.
Our
strategy
provides
a
platform
rationally
facilitates
atoms,
tunes
macroscopic
optoelectronic
properties
activity,
extending
boundaries
conventional
molecular‐based
photocatalysts.
