Polymers,
Год журнала:
2024,
Номер
16(13), С. 1759 - 1759
Опубликована: Июнь 21, 2024
Capturing
carbon
dioxide
(CO2)
is
still
a
major
obstacle
in
the
fight
against
climate
change
and
reduction
of
greenhouse
gas
emissions.
To
address
this
problem,
we
employed
simple
Friedel–Crafts
alkylation
to
investigate
effectiveness
porous
organic
polymers
(POPs)
based
on
triphenylamine
(TPA)
trihydroxy
aryl
terms
derived
from
chloranil
(CH),
designated
as
TPA-CH
POP.
We
then
treated
POP
with
(3-mercaptopropyl)trimethoxysilane
(3-MPTS),
forming
POP-SH
nanocomposite
enhance
CO2
capture.
Utilizing
FTIR,
solid-state
NMR,
SEM,
TEM,
along
XPS
techniques,
molecular
makeup,
morphological
characteristics,
well
physical
features
were
thoroughly
explored.
Upon
scorching
800
°C,
demonstrated
more
thermal
durability
over
POP,
achieving
char
yield
up
71.5
wt.%.
The
displayed
2.5-times
better
capture,
comparable
adsorption
capacity
48.07
cm3
g−1
at
273
K.
Additionally,
found
that
exhibited
an
improved
CO2/nitrogen
(N2)
selectivity
versus
original
Typical
enthalpy
changes
for
capture
somewhat
increased
by
3-MPTS
coating,
indicating
greater
binding
energies
between
molecules
adsorbent
surface.
Our
outcomes
demonstrate
composite
coated
MPTS
viable
candidate
effective
uses.
findings
encourage
investigation
different
functional
groups
optimization
strategies.
Progress in Materials Science,
Год журнала:
2024,
Номер
146, С. 101314 - 101314
Опубликована: Июнь 3, 2024
This
review
offers
a
comprehensive
evaluation
of
an
emerging
category
adsorbing
materials
known
as
high
surface
area
(HSAMs)
in
the
realm
water
remediation.
The
objective
is
to
shed
light
on
recent
advancements
HSAMs
featuring
multiple
dimensionalities,
addressing
their
efficacy
toxic
metal
ions
from
wastewater.
spectrum
examined
this
encompasses
metal–organic
frameworks
(MOFs),
covalent
organic
(COFs),
carbon-based
porous
materials,
mesoporous
silica,
polymer-based
layered
double
hydroxides,
and
aerogels.
delves
into
state-of-the-art
design
synthetic
approaches
for
these
elucidating
inherent
properties.
It
particularly
emphasizes
how
combination
pore
structure
contributes
effectiveness
ions.
These
possess
remarkable
attributes,
including
molecular
functionalization
versatility,
porosity,
expansive
area,
distinctive
physicochemical
characteristics,
well-defined
crystal
structures,
rendering
them
exceptional
adsorbents.
While
each
boasts
unique
advantages
stemming
properties,
synthesis
often
entails
intricate
costly
procedures,
presenting
substantial
obstacle
commercialization
widespread
adoption.
Finally,
underscores
existing
challenges
that
must
be
addressed
expedite
translation
remediation
applications
promising
materials.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(19), С. 24547 - 24561
Опубликована: Апрель 30, 2024
Thorium
(Th)
and
uranium
(U)
are
important
strategic
resources
in
nuclear
energy-based
heavy
industries
such
as
energy
defense
sectors
that
also
generate
significant
radioactive
waste
the
process.
The
management
of
is
therefore
paramount
importance.
Contamination
groundwater/surface
water
by
Th/U
increasing
at
an
alarming
rate
certain
geographical
locations.
This
necessitates
development
adsorbent
materials
with
improved
performance
for
capturing
species
from
groundwater.
report
describes
design
a
unique,
robust,
radiation-resistant
porous
organic
polymer
(POP:
TP-POP-SO3NH4),
which
demonstrates
ultrafast
removal
Th(IV)
(<30
s)/U(VI)
(<60
s)
present
simulated
wastewater/groundwater
samples.
Thermal,
chemical,
radiation
stabilities
these
POPs
were
studied
detail.
synthesized
ammoniated
POP
revealed
exceptional
capture
efficiency
trace-level
Th
(<4
ppb)
U
(<3
metal
ions
through
cation-exchange
mechanism.
TP-POP-SO3NH4
shows
sorption
capacity
[Th
(787
mg/g)
(854
mg/g)]
exceptionally
high
distribution
coefficient
(Kd)
107
mL/g
Th.
work
facile
protocol
to
convert
nonperforming
POP,
simple
chemical
modifications,
into
superfast
efficient
uptake/removal
U/Th.
Nanoscale Horizons,
Год журнала:
2024,
Номер
9(6), С. 885 - 899
Опубликована: Янв. 1, 2024
Water
pollution
and
the
global
freshwater
crisis
are
most
alarming
concerns
of
21st
century,
as
they
threaten
sustainability
ecological
balance
environment.
The
growth
population,
climate
change,
expansion
industrial
processes
main
causes
these
issues.
Therefore,
effective
remediation
polluted
water
by
means
detoxification
purification
is
paramount
importance.
To
this
end,
nanoscience
nanotechnology
have
emerged
viable
options
that
hold
tremendous
potential
toward
advancement
wastewater
treatment
methods
to
enhance
efficiency
along
with
augmenting
supply
via
utilization
unconventional
sources.
Materials
at
nano
level
shown
great
promise
applications
owing
their
unique
physicochemical
properties.
In
focus
article,
we
highlight
role
new
fundamental
properties
scale
material
drastically
increased
due
dimension
(e.g.
volume-surface
ratio)
impact
treatment.
We
identify
discuss
how
nano-properties
could
improve
three
domains
remediation:
identification
pollutants,
adsorption
catalytic
degradation.
After
discussing
all
beneficial
aspects
further
key
challenges
associated
nanomaterials
for
Looking
current
state-of-the-art,
well
nanomaterials,
believe
in
future
will
see
a
significant
materials
on
many
strategies.
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
Trifluoroacetic
acid
(TFA)
is
a
ubiquitous
and
persistent
environmental
pollutant
with
significant
human
health
impacts.
To
the
best
of
our
knowledge,
no
study
has
reported
use
porous
organic
polymers
to
adsorb
TFA
vapor.
In
this
study,
we
successfully
synthesized
polymer
(POPSP-4)
that
exhibits
both
physical
chemical
adsorption
for
efficient
capture,
can
occur
at
sulfur
sites.
With
assistance
bases,
capacity
increases
from
2.3
g·g–1
over
4
in
1
h
effectively
prevents
escape
polymer.
This
presents
promising
methodology
design
synthesis
materials,
specifically
capture
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
A
knitted
aryl
network
polymer
(KAP)
containing
triptycene
and
triphenylphosphine
was
synthesized
by
a
simple
Friedel–Crafts
reaction.
The
(Tp_PPh3)
exhibits
good
physicochemical
stability
with
high
BET
surface
area
(>960
m2/g).
groups
were
incorporated
in
order
to
anchor
palladium
species
on
the
pristine
KAP
backbone
(Tp_PPh3).
Consequently,
metalation
of
Tp_PPh3
yielded
Pd@Tp_PPh3,
which
showed
catalytic
behavior
Suzuki–Miyaura
cross-coupling
reactions
yield
targeted
products
an
aerobic
environment,
using
water
ethanol
as
green
solvents.
This
polymer-based
heterogeneous
catalyst
is
air/moisture
stable
can
be
easily
dispersed
reused
for
several
cycles
without
any
significant
loss
activity.
Even
at
low
loadings
(13.8
wt
%),
Pd@Tp_PPh3
catalyzed
rapid
conversions.
equally
useful
gram-scale
reactions.
strategy
avoids
aggregation
precipitation
Pd
simultaneously
ensures
more
sustainable
use
Suzuki
application
may
extended
other
Pd-catalyzed
