Tuned porous MOFs & COFs for arsenic removal- advanced water remediation approach
Desalination,
Год журнала:
2024,
Номер
592, С. 118075 - 118075
Опубликована: Сен. 6, 2024
Язык: Английский
Structural Design of Covalent Organic Frameworks and Their Recent Advancements in Carbon Capture Applications: A Review
Carbon Capture Science & Technology,
Год журнала:
2025,
Номер
unknown, С. 100370 - 100370
Опубликована: Янв. 1, 2025
Язык: Английский
Covalent Organic Frameworks for Photocatalysis
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 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.
Язык: Английский
One-Pot Synthesis of Tridentate Bicyclocalixarene Cage Molecules
Organic Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
Efficient
one-pot
synthesis
of
tridentate
bicyclocalixarenes
was
developed
by
condensing
phloroglucinol
with
dechlorinated
pyrimidine
or
triazine
a
yield
up
to
58%.
These
cage-like
molecules
adopt
symmetric
three-blade
propeller
structure
different
terminal
function
groups
and
arm
spans
ranging
from
7.5
15.8
Å.
Due
the
1,3-alternate
configuration
intermediate
heterocalixarenes,
cage
can
be
prepared
only
benzene
rings
as
upper
lower
caps.
They
will
an
ideal
scaffold
for
preparation
ultrathin
two-dimensional
materials.
Язык: Английский
Diketopyrrolopyrrole‐based Donor–Acceptor Covalent Organic Frameworks for Iodine Capture
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 5, 2025
The
recovery
of
radioactive
iodine
from
nuclear
waste
and
contaminated
water
sources
is
a
critical
environmental
concern,
which
poses
significant
technical
challenges.
Herein,
the
study
has
demonstrated
that
tuning
electronic
properties
diketopyrrolopyrrole-based
donor-acceptor
covalent
organic
frameworks
(COFs)
enhances
trapping,
improves
charge
transport,
strengthens
interactions
-
establishing
structure-property
relationship.
This
achieved
by
synthesizing
COFs
with
linker
3,6-bis(4-(1,3-dioxolan-2-yl)phenyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione
(DKP)
in
combination
either
electron
acceptor
4,4',4″-(1,3,5-triazine-2,4,6-triyl)trianiline
(TTT-DKP)
or
donor
N1,N1-bis(4-aminophenyl)benzene-1,4-diamine
(TAPA-DKP)
linkers.
These
COFs,
abundant
sorption
sites,
thermal
chemical
stability,
optimized
pore
environments,
efficiently
bind
vapor
solution
phases.
TAPA-DKP
COF,
containing
electron-donating
moieties,
showed
high
uptake
3.52
g/g,
exceeding
2.81
g/g
electron-deficient
TTT-DKP
phase,
both
following
pseudo-second-order
kinetics.
Density
functional
theory
(DFT)
calculations
reveal
adsorption
sites
showing
COF
binds
I2
more
effectively
via
its
electron-rich
highlighting
role
property
modulation
adsorption.
Язык: Английский
3D Silsesquioxane Cage‐Based Covalent Organic Frameworks Enabling Efficient Ion Transport in Quasi‐Solid‐State Lithium Metal Batteries
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 16, 2025
Abstract
The
resurgence
of
lithium
metal
batteries
(LMBs)
necessitates
advancements
in
electrolyte
engineering
to
regulate
ion
transport
and
manipulate
interfacial
characteristics.
Noteworthy
strategies
encompass
the
development
high‐efficiency
lithium‐ion
conductors
for
quasi‐solid‐state
composite
electrolytes.
In
this
context,
two
crystalline
3D
COFs
are
presented
that
thoughtfully
designed
by
selecting
decasilsesquioxane
(T
10
)
cage
building
blocks
linear
linkers
open
up
efficient
ion‐conducting
pathways.
silsesquioxane‐knotted
(CSQ‐COFs)
feature
densely
interconnected
pore
channels
a
multimodal
size
distribution,
which
gives
them
potential
function
as
ionic
conductors.
addition,
dissociation
salts
silsesquioxane
framework,
along
with
strong
adsorption
anions,
synergistically
enhances
transport.
coin
cell
assembled
CSQ‐COF
displays
an
conductivity
0.727
mS
cm
−1
at
80
°C,
E
0.12
eV,
t
Li+
0.83.
Therefore,
Li
symmetrical
demonstrates
excellent
plating/stripping
behaviors
600
h
under
0.5
mA
−2
.
Li/LiFePO
4
containing
solid‐state
delivers
initial
discharge
capacity
≈159.6
mAh
g
rate
C
room
temperature
retention
after
150
cycles.
This
work
provides
novel
insight
on
COF
Язык: Английский