Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
29(63)
Published: Aug. 29, 2023
Covalent
organic
frameworks
(COFs),
as
a
new
class
of
crystalline,
well-ordered,
and
porous
materials
with
intermittent
constructions,
are
formed
via
structural
parts
connected
through
covalent
bonds.
These
have
been
employed
in
several
fields
comprising
pollutant
adsorption
separation,
catalysis,
electrical
conductivity,
gas
storage,
etc.
The
preparation
COFs
is
mainly
applied
tubes
high
temperatures
degassing
treatment.
Furthermore,
the
reaction
medium
involved
toxic
solvents
like
toluene,
dioxane,
mesitylene,
acetonitrile,
so
on.
Hence,
discovering
clean
green
approaches
has
attracted
wide
attention.
Recently,
facile,
less
dangerous,
greener
methods
developed
for
synthesis
diverse
applications
performing
at
ambient
temperature
or
employing
aqueous
solvents,
ionic
liquids,
mixture
solvents/water.
This
review
article
summarizes
eco-friendly
production
applications.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Covalent
organic
frameworks
(COFs)
have
gained
considerable
attention
due
to
their
design
possibilities
as
the
molecular
building
blocks
that
can
stack
in
an
atomically
precise
spatial
arrangement.
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
96(8), P. 3561 - 3568
Published: Feb. 19, 2024
Covalent
organic
frameworks
(COFs)
are
attractive
adsorbents
for
sample
pretreatment
due
to
their
unique
structure
and
properties.
However,
the
selectivity
of
COFs
extraction
hazardous
compounds
is
still
limited
lack
specific
interactions
between
targets.
Herein,
we
report
a
pore
size
adjustment
strategy
room-temperature
synthesis
molecularly
imprinted
COF
(MICOF)
selective
zearalenone
(ZEN)
in
complex
food
samples.
The
three-dimensional
building
block
tetra(4-aminophenyl)
methane
was
used
as
functional
monomer,
while
dialdehyde
monomers
with
different
numbers
benzene
ring
were
adjust
MICOF
match
ZEN
molecules.
prepared
gave
largest
adsorption
capacity
177.2
mg
g–1
highest
imprinting
factor
10.1
so
far.
adsorbent
dispersed
solid-phase
combination
high-performance
liquid
chromatography
determination
trace
cereals.
high
developed
method
allows
simple
aqueous
standard
calibration
matrix
effect-free
limit
detection
recoveries
0.21
μg
kg–1
93.7–101.4%,
respectively.
precision
less
than
3.8%
(RSD,
n
=
6).
promising
matrices.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(27), P. 32926 - 32934
Published: June 27, 2023
Development
of
novel
functional
materials
for
effective
isomer
separation
is
great
significance
in
environmental
science,
chemical
industry,
and
life
science
due
to
the
different
functions
isomers.
However,
similar
physicochemical
properties
isomers
make
their
greatly
challenging.
Here,
we
report
fabrication
trifluoromethyl-functionalized
2D
covalent
organic
framework
(COF)
TpTFMB
with
2,2'-bis(trifluoromethyl)benzidine
(TFMB)
1,3,5-triformylphloroglucinol
(Tp)
was
situ-grown
on
inner
surface
a
capillary
high-resolution
The
introduction
hydroxyl
trifluoromethyl
groups
uniform
distribution
COFs
powerful
tactic
endow
various
such
as
hydrogen
bonding,
dipole
interaction,
steric
effect.
prepared
column
enabled
baseline
positional
ethylbenzene
xylene,
chlorotoluene,
carbon
chain
butylbenzene
ethyl
butanoate,
cis-trans
1,3-dichloropropene.
hydrogen-bonding,
dipole,
π-π
interactions
well
structure
COF
significantly
contribute
separation.
This
work
provides
new
strategy
designing
efficient
