Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(37)
Опубликована: Июль 6, 2022
Currently,
nitrogen
fertilizers
feed
half
of
the
global
population,
but
their
use
is
limited
by
energy
consumption
and
transportation.
Therefore,
it
important
to
study
photocatalysts
for
in
solar
fertilizers.
Herein,
a
new
type
graphene-embedded
Ce-based
UiO-66
(Ce-UiO-66)
photocatalyst
(GSCe)
investigated.
Ce-UiO-66
activated
breakage
benzene-C
bonds
formation
active
sites
ultraviolet
light
water.
Moreover,
embedding
graphene
effectively
controls
activation
improves
fixation.
GSCe
exhibited
remarkable
apparent
quantum
efficiency
(AQE)
9.25
%
stability
under
365
nm
with
solar-level
intensity.
also
performed
well
as
ammonia
fertilizer
crop
cultivation.
This
investigation
opens
up
opportunities
fixation
be
used
environmentally
friendly
ACS Catalysis,
Год журнала:
2021,
Номер
11(8), С. 4739 - 4769
Опубликована: Апрель 5, 2021
The
effective
separation
of
photogenerated
carriers
plays
a
vital
role
in
photocatalytic
reactions.
In
addition
to
the
intrinsic
driving
force
photocatalysis,
an
external
field
generating
enhancement
effect
can
provide
extra
energy
system,
acting
as
additional
impetus
separate
charges
and
thus
improving
overall
catalytic
efficiency.
Under
favorable
noncontact
conditions,
exploring
field,
different
from
pure
photocatalysis
or
photoelectrocatalysis,
could
widen
applications
technology.
this
review,
four
typical
fields
(i.e.,
thermal,
magnetic,
microwave,
ultrasonic
fields)
their
coupling
effects
on
are
summarized.
Specifically,
review
focuses
mechanism
characteristics
each
field's
synergistic
performance
system.
charge
forces
provided
by
traditional
one
distinguished
defined
for
first
time.
challenges
future
prospects
external-field-driven
discussed.
We
hope
that
will
reference
research
development
external-field-assisted
give
insights
in-depth
study
external-field-coupling-enhanced
toward
improvement
Chemical Society Reviews,
Год журнала:
2022,
Номер
51(7), С. 2444 - 2490
Опубликована: Янв. 1, 2022
As
a
new
generation
of
porous
materials,
organic
polymers
(POPs),
have
recently
emerged
as
powerful
platform
heterogeneous
photocatalysis.
POPs
are
constructed
using
extensive
synthesis
methodologies,
with
various
functional
units
being
connected
via
high-energy
covalent
bonds.
This
review
systematically
presents
the
recent
advances
in
for
visible-light
driven
transformations.
Herein,
we
firstly
summarize
common
construction
strategies
POP-based
photocatalysts
based
on
two
major
approaches:
pre-design
and
post-modification;
secondly,
categorize
methods
reaction
types
constructing
POPs.
We
then
classify
introduce
specific
reactions
current
light-driven
POP-mediated
Finally,
outline
state
development
problems
faced
transformations
by
POPs,
present
some
perspectives
to
motivate
reader
explore
solutions
these
confront
challenges
process.
Journal of the American Chemical Society,
Год журнала:
2021,
Номер
143(50), С. 21340 - 21349
Опубликована: Дек. 8, 2021
Charge
separation
plays
a
crucial
role
in
regulating
photochemical
properties
and
therefore
warrants
consideration
designing
photocatalysts.
Metal-organic
frameworks
(MOFs)
are
emerging
as
promising
candidates
for
heterogeneous
photocatalysis
due
to
their
structural
designability
tunability
of
photon
absorption.
Herein,
we
report
the
design
pyrazole-benzothiadiazole-pyrazole
organic
molecule
bearing
donor-acceptor-donor
conjugated
π-system
fast
charge
separation.
Further
attempts
integrate
such
photosensitizer
into
MOFs
afford
more
effective
photocatalyst
(JNU-204).
Under
visible-light
irradiation,
three
aerobic
oxidation
reactions
involving
different
oxygenation
pathways
were
achieved
on
JNU-204.
Recycling
experiments
conducted
demonstrate
stability
reusability
JNU-204
robust
photocatalyst.
Furthermore,
illustrate
its
applications
facile
synthesis
pyrrolo[2,1-a]isoquinoline-containing
heterocycles,
core
skeletons
family
marine
natural
products.
is
an
exemplary
MOF
platform
with
good
absorption,
suitable
band
gap,
separation,
extraordinary
chemical
proceeding
under
irradiation.
ACS Catalysis,
Год журнала:
2021,
Номер
12(1), С. 616 - 623
Опубликована: Дек. 22, 2021
Heptazine
serves
as
the
solely
repetitive
unit
of
graphitic
carbon
nitride
(g-C3N4),
which
represents
a
progressive
metal-free
photocatalyst.
However,
synthesizing
high-quality
2D
heptazine-based
covalent
organic
frameworks
(COFs)
remains
formidable
challenge,
probably
due
to
scarcity
suitable
and
ample
reactive
building
blocks.
Herein,
we
designed
synthesized
4-(methylene
diacetate)phenyl-substituted
heptazine
monomer
(HEP-OAc)
by
oxidation
tris(4-tolyl)heptazine.
Accordingly,
two
highly
ordered
N-rich
COFs
(HEP-TAPT-COF
HEP-TAPB-COF)
were
readily
prepared
direct
condensation
HEP-OAc
with
C3-symmetric
aromatic
amines
under
solvothermal
conditions.
In
comparison
pristine
g-C3N4,
HEP-TAPT-COF
exhibited
greatly
enhanced
photocatalytic
performance
for
benzylic
C–H
selective
sulfoxidation
mild
This
work
provides
meaningful
insights
into
developing
crystalline
better
capacities.
Carbon Energy,
Год журнала:
2021,
Номер
3(4), С. 519 - 540
Опубликована: Июль 22, 2021
Abstract
Conversion
of
methane
into
value‐added
chemicals
is
significance
for
utilization
and
industrial
demand
primary
chemical
products.
The
barrier
associated
with
the
nonpolar
structure
high
bond
energy
C–H
(4.57
eV)
makes
it
difficult
to
realize
conversion
activation
under
mild
conditions.
photothermal
synergetic
strategy
by
combining
photon
thermo
provides
an
advanced
philosophy
achieve
efficient
conversion.
In
this
review,
we
overview
current
pioneering
studies
indirect
present
direct
way
photocatalysis
thermocatalysis
provide
a
fundamental
understanding
activation.
Finally,
end
review
discussion
on
remaining
challenges
perspectives
over
single‐atom
catalysts
via
strategy.
