Industrial & Engineering Chemistry Research,
Journal Year:
2023,
Volume and Issue:
62(44), P. 18230 - 18250
Published: Oct. 24, 2023
The
highly
selective
and
effective
enrichment
of
U(VI)
from
seawater
nuclear
industry
wastewater
is
important
not
only
for
power
development
dependable
energy
source,
but
also
reducing
the
potential
threat
radionuclides
to
environment
human
health.
Covalent
organic
frameworks
(COFs)
are
ideal
materials
trapping
ions
in
aqueous
solutions
because
their
advantages
such
as
inherent
porosity,
strong
skeleton,
chemical
stability,
good
structural
regularity.
Herein,
most
recent
developments
investigation
COFs
efficient
preconcentration
separation
by
adsorption,
photocatalysis,
electrocatalysis
radioactive
reviewed.
performance
related
mechanisms
interaction
with
carefully
analyzed
results
batch
sorption
experiments,
advanced
spectroscopy
analysis,
theoretical
calculations.
challenges
present
regarding
use
functional
extraction
described.
Our
aim
provide
insight
advice
creation
innovative
high
efficiency
selectivity
future.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(19)
Published: Jan. 8, 2024
Abstract
Photocatalytic
uranium
extraction
from
seawater
is
an
ideal
strategy
to
obtain
resources.
Herein,
the
cyano‐functionalized
graphitic
carbon
nitride
(g‐C
3
N
4
‐CN)
with
isosite
structure
of
adsorption
and
photoreduction
for
U(VI)
successfully
prepared
achieve
efficient
photocatalytic
seawater.
As
key
structure,
cyano
group
not
only
dramatically
promotes
separation
photogenerated
charges
g‐C
‐CN
enriched
electrons
around
it,
but
also
greatly
improves
capacity
selectivity
over
by
complexing
U(VI).
Therefore,
exhibits
stable
reduction
performance,
a
saturated
2644.3
mg
g
−1
,
significantly
higher
than
most
reported
‐based
photocatalysts.
Moreover,
it
performs
well
in
solar
light‐driven
actual
Briefly,
this
work
illustrates
importance
constructing
improving
performance.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 10, 2024
Abstract
Covalent
organic
frameworks
(COFs)
attract
significant
attention
due
to
their
ordered,
crystalline,
porous,
metal‐free,
and
predictable
structures.
These
unique
characteristics
offer
great
opportunities
for
the
diffusion
transmission
of
photogenerated
charges
during
photocatalysis.
Currently,
a
considerable
number
COFs
are
used
as
metal‐free
semiconductor
photocatalysts.
This
review
aims
understand
relationships
between
structure
photocatalysis
performance
provides
in‐depth
insight
into
synthetic
strategy
improve
performance.
Subsequently,
focuses
on
structural
motif
in
sustainable
photocatalytic
hydrogen
evolution,
carbon
dioxide
reduction,
peroxide
generation,
compound
transformations.
Last,
conjunction
with
progress
achieved
challenges
yet
be
overcome,
candid
discussion
is
undertaken
regarding
field
COF
photocatalysis,
accompanied
by
presentation
potential
research
avenues
future
directions.
seeks
provide
readers
comprehensive
understanding
pivotal
role
robust
guidance
innovative
utilization
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(29)
Published: March 15, 2024
Abstract
Environmental
protection
and
resource
reclamation
make
the
extraction
of
uranium
from
uranium‐containing
wastewater
be
a
key
role
in
nuclear
chemistry
industry.
Although
previous
studies
have
revealed
several
effective
methods
materials
for
such
use,
however,
few
are
concerned
about
discharge
issues.
In
fact,
direct
treated
into
environment
is
still
not
green
way.
Here,
an
innovative
conversion
approach
shown,
which
can
simultaneously
achieve
to
valuable
chemical.
This
concept
implemented
by
azobenzene‐pendent
covalent
organic
framework,
showing
smart
trans
‐to‐
cis
photoresponsive
properties
both
space
electronic
structure
consequently,
largely
enhanced
efficiency
under
UV
irradiation,
relative
visible
light
irradiation.
real
wastewater,
material
found
give
selective
100%
H
2
O
generation
(1872.3
µmol
g
−1
h
).
The
mechanism
due
unique
photocatalysis
coupling
between
reduction
reaction
(URR),
aiming
at
recovery
or
removal,
water
oxidation
(WOR),
targeting
chemical
.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(14), P. 7531 - 7565
Published: Jan. 1, 2024
Covalent
organic
frameworks
(COFs)
have
recently
seen
significant
advancements.
Large
quantities
of
structurally
&
functionally
oriented
COFs
with
a
wide
range
applications,
such
as
gas
adsorption,
catalysis,
separation,
and
drug
delivery,
been
explored.
Recent
achievements
in
this
field
are
primarily
focused
on
advancing
synthetic
methodologies,
catalysts
playing
crucial
role
achieving
highly
crystalline
COF
materials,
particularly
those
featuring
novel
linkages
chemistry.
A
series
reviews
already
published
over
the
last
decade,
covering
fundamentals,
synthesis,
applications
COFs.
However,
despite
pivotal
that
auxiliaries
play
forming
materials
adjusting
their
properties
(
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(7), P. 8772 - 8782
Published: Feb. 7, 2024
Olefin-linked
covalent
organic
frameworks
(COFs)
have
exhibited
great
potential
in
visible-light
photocatalysis.
In
principle,
expanding
fully
conjugated
COFs
can
facilitate
light
absorption
and
charge
transfer,
leading
to
improved
Herein,
three
olefin-linked
with
the
same
topology
are
synthesized
by
combining
2,4,6-trimethyl-1,3,5-triazine
(TMT)
1,3,5-triformylbenzene
(TFB),
1,3,5-tris(4-formylphenyl)benzene
(TFPB),
1,3,5-tris(4-formylphenylethynyl)benzene
(TFPEB),
namely,
TMT-TFB-COF,
TMT-TFPB-COF,
TMT-TFPEB-COF,
respectively.
From
TMT-TFB-COF
phenyl
rings
provides
only
limited
expansion
for
π-conjugation
due
steric
effect
of
structural
twisting.
However,
from
TMT-TFPB-COF
insertion
acetylenes
eliminates
more
delocalized
π-electrons.
As
such,
TMT-TFPEB-COF
exhibits
best
optoelectronic
properties
among
these
COFs.
Consequently,
photocatalytic
performance
is
much
better
than
those
on
oxidation
sulfides
into
sulfoxides
oxygen.
The
desirable
reusability
substrate
compatibility
photocatalyst
further
confirmed.
selective
formation
over
under
blue
irradiation
proceeds
via
both
electron-
energy-transfer
pathways.
This
work
highlights
a
rational
design
toward
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 27, 2025
Piezoelectric
catalysis
possesses
the
potential
to
convert
ocean
wave
energy
into
and
holds
broad
prospects
for
extracting
uranium
from
seawater.
Herein,
Z-type
ZnO@COF
heterostructure
composite
with
excellent
piezoelectric
properties
was
synthesized
through
in
situ
growth
of
covalent
organic
frameworks
(COFs)
on
surface
ZnO
used
efficient
extraction.
The
designed
COFs
shell
enables
stability,
abundant
active
sites
high-speed
electron
transport
channels.
Meanwhile,
interface
electric
field
established
heterojunctions
stimulates
transfer
ZnO,
which
break
edge
shielding
effect
ZnO's
metallic
state.
Additionally,
polarization
is
enhanced
by
heterogeneous
engineering,
ensures
piezocatalytic
performance.
As
a
result,
achieves
an
ultra-high
efficiency
7.56
mg
g−1
d−1
extraction
natural
seawater
driven
waves.
In
this
work,
we
open
avenue
developing
catalysts
A
seawater,
helping
realize
