Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 8, 2024
During
chemical
reactions,
especially
for
electrocatalysis
and
electrosynthesis,
the
electric
field
is
most
central
driving
force
to
regulate
reaction
process.
However,
due
difficulty
of
quantitatively
measuring
effects
caused
at
microscopic
level,
regulation
electrocatalytic
reactions
by
fields
has
not
been
well
digitally
understood
yet.
Herein,
we
took
infrared/Raman
spectral
signals
CO
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(19)
Опубликована: Янв. 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,
Год журнала:
2024,
Номер
34(52)
Опубликована: Авг. 27, 2024
Abstract
Uranium
plays
an
indispensable
role
in
the
sustainable
development
of
nuclear
industry,
and
recovery
uranium
from
wastewater
is
one
way
to
solve
shortage
resources.
However,
resources
remains
a
challenge
due
interfere
coexisting
ions.
Herein,
ratios
adsorption
group
photocatalytic
enrichment
are
well‐designed
controllably
assembled
into
porous
aromatic
frameworks
(PAFs)
using
molecular
engineering
strategy
realize
high
efficiency
resistance
interfering
The
optimally
coordinated
multivariate
PAF
material
PAF‐AN
2
T
8
‐AO
exhibits
bifunctions
thus,
achieves
selectivity
99%
under
simulated
sunlight
irradiation.
Compared
PAFs
with
only
or
group,
capacity
optimized
enhanced
by
1.2
times
2.3
times,
respectively.
Mechanistic
studies
reveal
that
product
on
air‐stabilized
solid
crystal
metastudtite
((UO
)O
∙2H
O).
This
work
provides
guiding
method
for
designing
adsorption‐photocatalytic
bifunctional
materials
proposes
more
environmentally
adaptable
dispersed
resource
recovery.
