Chemistry - An Asian Journal,
Journal Year:
2023,
Volume and Issue:
19(2)
Published: Dec. 11, 2023
Abstract
Water
treatment
has
experienced
a
surge
in
the
adoption
of
membrane
separation
technology.
Covalent
organic
frameworks
(COFs),
class
metal‐free
and
open‐framework
materials,
have
emerged
as
potential
materials
owing
to
their
interconnected
periodic
porosity,
tunability,
chemical
stability.
However,
challenges
associated
with
processing
COF
powders
into
self‐standing
membranes
spurred
emergence
composite
membranes.
This
review
article
highlights
rationale
behind
developing
categories,
including
mixed
matrix
(MMMs)
thin
film
(TFC)
The
common
fabrication
techniques
each
category
are
presented.
In
addition,
influence
additives
on
performance
resultant
is
systematically
discussed,
focus
recent
progress
applying
different
categories
water
pollutants,
ions/molecules,
toxic
solvents,
proteins,
heavy
metals,
radionuclides.
Small,
Journal Year:
2023,
Volume and Issue:
19(37)
Published: May 8, 2023
Abstract
Covalent
organic
frameworks
(COFs)
with
high
specific
surface
area,
tailored
structure,
easy
functionalization,
and
excellent
chemical
stability
have
been
extensively
exploited
as
fantastic
materials
in
various
fields.
However,
most
cases,
COFs
prepared
powder
form
suffer
from
the
disadvantages
of
tedious
operation,
strong
tendency
to
agglomerate,
poor
recyclability,
greatly
limiting
their
practical
application
environmental
remediation.
To
tackle
these
issues,
fabrication
magnetic
(MCOFs)
has
attracted
tremendous
attention.
In
this
review,
several
reliable
strategies
for
MCOFs
are
summarized.
addition,
recent
outstanding
adsorbents
removal
contaminants
including
toxic
metal
ions,
dyes,
pharmaceuticals
personal
care
products,
other
pollutants
is
discussed.
Moreover,
in‐depth
discussions
regarding
structural
parameters
affecting
potential
highlighted
detail.
Finally,
current
challenges
future
prospects
field
provided
expectation
boost
application.
Environmental Functional Materials,
Journal Year:
2023,
Volume and Issue:
2(1), P. 76 - 92
Published: March 1, 2023
Large
amounts
of
various
(in)organic
pollutants
and
CO2
are
released
into
the
environment
with
fast
development
agriculture
industry,
which
results
in
environmental
pollution
climate
change,
thereby
causes
great
threat
to
human
society.
The
efficient
capture
conversion
critical
against
greenhouse
effect,
whereas
elimination
from
is
important
health
ecosystem.
COFs
(covalent
organic
frameworks)
have
attracted
multidisciplinary
research
interests
because
their
outstanding
physicochemical
properties
such
as
high
surface
areas,
tunable
porous
structures,
abundant
active
sites
functional
groups.
Herein
application
conversion,
sorption-photocatalytic
degradation
pollutants,
sorption-catalytic
reduction-solidification
heavy
metals/radionuclides
were
reviewed
compared.
interaction
mechanisms
pollutant
molecules
discussed
macroscopic
sorption
results,
microscopic
spectroscopy
analysis,
theoretical
calculations.
adsorption
capacity
was
mainly
related
groups
sites,
photocatalytic
activity
dominated
by
•O2−
•OH
species.
exhibited
catalytic
removal
pollutants.
However,
there
still
some
main
challenges
real
applications:
1)
selective
low
cost
reusability;
2)
visible
light
absorption
for
molecule
degradation;
3)
target
selectivity
4)
reduction
ability
in-situ
solidification
under
complex
conditions;
5)
extraction
radionuclides
complicated
solutions
seawater
or
salt
lake.
In
end,
perspectives
difficulties
applications
described.
npj Clean Water,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: Jan. 19, 2025
The
growing
global
demand
for
freshwater
necessitates
advanced
water
treatment
technologies.
This
review
highlights
the
application
of
fibrous
silica
spheres,
KCC-1,
in
remediation,
focusing
on
removal
heavy
metals
and
organic
dyes.
KCC-1's
unique
morphology,
high
surface
area,
physicochemical
properties
make
it
a
promising
adsorbent.
work
examines
its
synthesis,
modifications,
advantages,
providing
insights
into
optimizing
KCC-1-based
adsorbents
sustainable
treatment.
Langmuir,
Journal Year:
2023,
Volume and Issue:
39(50), P. 18447 - 18457
Published: Dec. 6, 2023
Graphene
oxide-based
composite
membranes
have
received
enormous
attention
for
highly
efficient
water
desalination.
Herein,
we
prepare
arginine/graphene
oxide
(Arg/GO)
by
surface
functionalizing
GO
nanosheets
with
arginine
amino
acid.
Arginine
has
a
unique
combination
of
hydroxyl
and
functional
groups
that
cross-link
through
hydrogen
bonding
electrostatic
interactions.
The
as-prepared
Arg@GO
different
thicknesses
are
used
to
separate
the
salt
dye
molecules.
900-nm-thick
membrane
shows
high
rejection
98%
NaCl
99.8%
MgCl2,
Ni(NO3)2,
Pb(NO3)2
good
permeance.
Such
also
separation
efficiency
(100%)
methylene
blue,
rhodamine
B,
Evans
blue
dyes.
At
same
time,
ultrathin
(220
±
10
nm)
exhibits
permeance
up
2100
L
m-2
h-1
bar-1.
Furthermore,
is
stable
in
an
aqueous
environment
40
days
significantly
less
swelling.
Therefore,
these
can
be
utilized
future
desalination
applications.
