Nanomaterials,
Год журнала:
2023,
Номер
13(18), С. 2514 - 2514
Опубликована: Сен. 8, 2023
Hyper-crosslinked
porous
organic
nanomaterials,
especially
the
hyper-crosslinked
polymers
(HCPs),
are
a
unique
class
of
materials
that
combine
benefits
high
surface
area,
structure,
and
good
chemical
thermal
stability
all
rolled
into
one.
A
wide
range
synthetic
methods
offer
an
enormous
variety
HCPs
with
different
pore
structures
morphologies,
which
has
allowed
to
be
developed
for
gas
adsorption
separations,
encapsulation,
heterogeneous
catalysis.
Here,
we
present
systematic
review
recent
approaches
size
modulation
morphological
tailoring
their
applications
We
mainly
compare
effects
on
catalytic
applications,
aiming
pave
way
researchers
develop
optimal
performance
modern
applications.
Langmuir,
Год журнала:
2023,
Номер
39(45), С. 16069 - 16078
Опубликована: Окт. 17, 2023
Developing
efficient
adsorbent
materials
for
iodine
scavenging
is
essential
to
mitigate
the
threat
of
radioactive
causing
adverse
effects
on
human
health
and
environment.
In
this
context,
we
explored
N-rich
two-dimensional
covalent
organic
frameworks
(COFs)
with
diverse
functionalities
capture.
The
pyridyl-hydroxyl-functionalized
triazine-based
novel
5,5',5″-(1,3,5-triazine-2,4,6-triyl)tris(pyridine-2-amine)
(TTPA)-COF
possesses
high
crystallinity
(crystalline
domain
size:
24.4
±
0.6
nm)
porosity
(specific
BET
surface
area:
1000
90
m2
g-1).
TTPA-COF
exhibits
superior
vapor-phase
adsorption
(4.43
0.01
g
g-1)
compared
analogous
COF
devoid
pyridinic
moieties,
2,4,6-tris(4-aminophenyl)-1,3,5-triazine
(TAPT)-COF.
capture
by
due
enhanced
binding
affinity
conferred
extra
active
sites.
Furthermore,
crucial
role
long-range
order
in
porous
adsorbents
has
been
experimentally
evidenced
comparing
performance
vapor
an
amorphous
network
polymer
having
identical
functionalities.
We
have
also
demonstrated
ability
from
aqueous
phases.
mechanism
heteroatom-rich
framework
elucidated
through
FTIR,
XPS,
Raman
spectral
analyses.
present
study
highlights
need
structural
tweaking
building
blocks
toward
rational
construction
advanced
functional
a
task-specific
application.
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
7(3), С. 1639 - 1650
Опубликована: Янв. 30, 2025
Hyper-cross-linked
polymers
(HCPs)
have
demonstrated
great
potential
for
capture,
catalysis,
drug
delivery,
and
energy
storage
attracted
extensive
research
interest.
Nevertheless,
tuning
their
nanoscale
morphology
remains
a
challenge.
Herein,
we
constructed
series
of
HCPs
(HCP[HaPb])
with
various
morphologies
(nanospheres,
nanorod-like,
flower-like
nanostructures)
by
controlling
the
molar
ratios
monomers
hexakis(benzylthio)benzene
quality.
In
addition,
HCP[H200P3]
rich
nitrogen
sulfur
atoms
showed
fast
adsorption
rate
high
capacity
I3–
in
aqueous
media.
The
reached
98%
within
5
min
at
liquid/solid
ratio
1
mL
mg–1,
saturated
1.388
g
g–1
was
obtained
30
mg–1.
Additionally,
flow-through
experiments
revealed
that
an
impressive
removal
flow
1.0
min–1.
More
importantly,
could
selectively
capture
presence
competing
anions.
This
work
proved
adsorbent
highly
selective
has
good
prospects
practical
application
I3–.
Applied Surface Science Advances,
Год журнала:
2023,
Номер
18, С. 100543 - 100543
Опубликована: Дек. 1, 2023
Organic
dyes,
often
found
in
textile
wastewater
and
soft
drinks,
are
a
threat
to
environmental
human
well-being.
Considering
that
adsorbents
could
be
used
alleviate
such
threats,
the
present
work
is
focused
on
design
of
covalent
organic
polymer
(COP)
for
adsorption
cationic
dyes.
For
this,
COP
was
synthesized
via
Friedel-Crafts
reaction
subsequently
functionalized
with
chlorosulfonic
acid
groups
form
sulfonated
COP,
denoted
TC-COP-SO3H.
Next,
material's
capacity,
kinetics,
recyclability
were
assessed.
The
capacity
TC-COP-SO3H
Basic
Blue
41
46
higher
than
it
before
modification
sulfonic
groups.
improved
efficiency
high
dyes
attributed
increased
density
sites,
which
stems
from
favourable
electrostatic
interactions
achieved
post-synthetic
COP.
Incorporating
photo-switches
into
skeletal
structures
of
microporous
materials
or
as
guest
molecules
yield
photo-responsive
for
low-energy
CO2
capture
but
at
the
expense
lower
uptake.
Here,
we
overcome
this
limitation
by
exploiting
trans-cis
photoisomerization
azobenzene
loaded
micropores
hypercross-linked
polymers
(HCPs)
derived
from
waste
polystyrene.
Azobenzene
in
HCP
pores
reduced
uptake
19
%,
reaching
37.7
cm3
g-1
,
loss
was
not
only
recovered
azobenzene,
also
increased
22
56.9
when
compared
to
as-prepared
HCPs.
Computational
simulations
show
that
increase
is
due
photo-controlled
increments
10-20
Å
micropore
volume,
i.
e.,
adsorption
sites
and
a
photo-reversible
positive
dipole
moment.
Irradiating
these
HCPs
with
visual-range
light
reverted
33
.
This
shows
it
feasible
recycle
polystyrene
advanced
carbon
capture.
