ChemSusChem,
Journal Year:
2020,
Volume and Issue:
13(16), P. 4005 - 4025
Published: May 19, 2020
Abstract
Artificial
photosynthesis
has
attracted
increasing
attention
due
to
recent
environmental
and
energy
concerns.
Metal
halide
perovskites
(MHPs)
demonstrating
excellent
optoelectronic
properties
have
currently
emerged
as
novel
efficient
photocatalytic
materials.
Herein,
the
structural
features
of
MHPs
that
are
responsible
for
photoinduced
charge
separation
migration
briefly
introduced,
then
important
necessary
photophysical
photochemical
aspects
related
photoredox
catalysis
summarized.
Subsequently,
applications
solar
harvesting
conversion,
including
H
2
evolution,
CO
reduction,
degradation
organic
pollutants,
synthesis,
extensively
demonstrated,
with
a
focus
on
strategies
improving
performance
(e.g.,
selectivity,
activity,
stability,
recyclability,
compatibility)
these
MHP‐based
systems.
To
conclude,
existing
challenges
prospects
future
development
materials
towards
detailed.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(4), P. 1743 - 1752
Published: March 26, 2024
Constructing
vacancy-decorated
heterojunction
photocatalysts
is
a
feasible
strategy
for
highly
efficient
photooxidation
of
toluene
to
benzaldehyde.
However,
poor
interface
interaction
and
vacancy-triggered
mismatched
redox
kinetics
seriously
impede
photocatalytic
activity
improvement.
Herein,
chemically
bonded
Cs3Bi2Br9–x@AgBr
core–shell
with
unified
adsorption-redox
sites
fabricated
via
an
in-situ
light-assisted
Ag+
insertion
method.
Experiments
theoretical
calculations
demonstrate
that
the
type-II
band
alignment
interfacial
Bi–Br–Ag
bonds
boosts
charge
separation.
Moreover,
because
greater
oxygen
adsorption
energy
steric-hindrance
effect
AgBr
shell,
preferred
site
O2
modulated
from
Br
vacancy
(VBr,
trapping
holes)
its
corresponding
reduction
(AgBr,
gathering
electrons),
thereby
ensuring
VBr-enhancing
adsorption/oxidation
on
Cs3Bi2Br9.
Therefore,
exhibits
improved
benzaldehyde
production
rate
5.61
mmol
g–1
h–1
(selectivity:
91%),
outperforming
pure
Cs3Bi2Br9
by
factor
6.
This
work
underlines
importance
rational
design
heterointerface
at
atomic
level
in
photocatalysis.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(17), P. 6519 - 6528
Published: April 12, 2024
Photocatalytic
aerobic
oxidation
of
hydrocarbons
to
ketones
is
an
attractive
route
for
synthesizing
high-value-added
chemicals.
However,
the
main
challenge
photocatalytic
reactions
their
low
activity.
Herein,
hollow
Bi2MoO6
microspheres
were
synthesized
by
a
facile
two-step
synthesis
combining
ethylene
glycol
solvothermal
with
postannealing
treatment.
In
ethylbenzene
corresponding
under
visible
light
irradiation
using
O2
as
oxidant,
exhibit
record
acetophenone
production
rate
1.1
mmol
g–1
h–1
90%
selectivity.
The
photoactivity
oxygen
vacancy-enriched
61
times
higher
than
that
uncalcined
Bi2MoO6,
which
can
be
attributed
effective
separation
photogenerated
carriers
and
abundant
catalytic
active
sites
(i.e.,
vacancies)
on
microspheres.
This
work
provides
more
insights
into
understanding
how
construct
highly
efficient
visible-light-responsive
photocatalysts
organic
compounds.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(13)
Published: Jan. 16, 2024
Abstract
Activation
of
ubiquitous
C(sp
3
)−H
bonds
is
extremely
attractive
but
remains
a
great
challenge.
Heterogeneous
photocatalysis
offers
promising
and
sustainable
approach
for
activation
has
been
fast
developing
in
the
past
decade.
This
Minireview
focuses
on
mechanism
strategies
heterogeneous
photocatalytic
activation.
After
introducing
mechanistic
insights,
including
precise
design
active
sites,
regulation
reactive
radical
species,
improving
charge
separation
reactor
innovations
are
discussed.
In
addition,
recent
advances
hydrocarbons,
alcohols,
ethers,
amines
amides
by
summarized.
Lastly,
challenges
opportunities
outlined
to
encourage
more
efforts
development
this
exciting
field.
ACS Catalysis,
Journal Year:
2020,
Volume and Issue:
10(24), P. 14793 - 14800
Published: Dec. 2, 2020
Selective
production
of
value-added
platform
chemicals
from
renewable
biomass
feedstocks
and
their
derivatives
has
attracted
tremendous
attention
with
high
potential
in
addressing
global
problems
energy
sustainability.
In
this
work,
a
lead-halide
perovskite
(MAPbBr3,
MA
=
methylammonium)
is
utilized
as
photocatalyst
for
selective
oxidation
5-hydroxymethylfurfural
(HMF)
to
2,5-diformylfuran
(DFF)
using
atmospheric
O2
upon
visible-light
irradiation.
Under
minimally
optimized
conditions,
the
photocatalytic
conversion
HMF
acetonitrile
solvent
reaches
100%
DFF
selectivity
over
90%,
achieving
an
overall
furanic
carbon
yield
96%.
A
detailed
catalytic
mechanism
was
proposed
based
on
various
spectroscopic
experimental
results,
revealing
that
O2,
photogenerated
electrons
(e–),
holes
(h+),
•O2–,
1O2
species
together
play
crucial
roles
effective
photo-oxidation
DFF.
addition,
our
present
system
also
applicable
benzyl
alcohol
approximately
benzaldehyde
selectivity,
providing
insights
future
exploration
system.
ChemSusChem,
Journal Year:
2020,
Volume and Issue:
13(16), P. 4005 - 4025
Published: May 19, 2020
Abstract
Artificial
photosynthesis
has
attracted
increasing
attention
due
to
recent
environmental
and
energy
concerns.
Metal
halide
perovskites
(MHPs)
demonstrating
excellent
optoelectronic
properties
have
currently
emerged
as
novel
efficient
photocatalytic
materials.
Herein,
the
structural
features
of
MHPs
that
are
responsible
for
photoinduced
charge
separation
migration
briefly
introduced,
then
important
necessary
photophysical
photochemical
aspects
related
photoredox
catalysis
summarized.
Subsequently,
applications
solar
harvesting
conversion,
including
H
2
evolution,
CO
reduction,
degradation
organic
pollutants,
synthesis,
extensively
demonstrated,
with
a
focus
on
strategies
improving
performance
(e.g.,
selectivity,
activity,
stability,
recyclability,
compatibility)
these
MHP‐based
systems.
To
conclude,
existing
challenges
prospects
future
development
materials
towards
detailed.
