Advanced Functional Materials,
Год журнала:
2021,
Номер
32(15)
Опубликована: Дек. 22, 2021
Abstract
Construction
of
semiconducting
metal‐organic
framework
based
heterostructures
is
emerging
as
a
promising
strategy
for
enhancing
their
photocatalytic
performances.
Here,
tetrapod‐like
NH
2
‐MIL‐125@ZnS
with
tunable
heterojunction
coverage
and
well‐matched
band
structure
are
synthesized
photocatalysts.
When
used
O
reduction
reaction,
≈45.1%
leads
to
the
best
performance
hydrogen
peroxide
production
rate
≈120
m
g
−1
h
,
outperforming
control
samples
either
larger
or
smaller
coverages
most
reported
MOF
photocatalysts
in
similar
reaction
systems.
Advanced Materials,
Год журнала:
2022,
Номер
34(23)
Опубликована: Март 9, 2022
Abstract
2D
materials
show
many
particular
properties,
such
as
high
surface‐to‐volume
ratio,
anisotropic
degree,
and
adjustable
chemical
functionality.
These
unique
properties
in
have
sparked
immense
interest
due
to
their
applications
photocatalytic
systems,
resulting
significantly
enhanced
light
capture,
charge‐transfer
kinetics,
surface
reaction.
Herein,
the
research
progress
photocatalysts
based
on
varied
compositions
functions,
followed
by
specific
modification
strategies,
is
introduced.
Fundamental
principles
focusing
harvesting,
charge
separation,
molecular
adsorption/activation
2D‐material‐based
system
are
systemically
explored.
The
examples
described
here
detail
use
of
various
energy‐conversion
including
water
splitting,
carbon
dioxide
reduction,
nitrogen
fixation,
hydrogen
peroxide
production,
organic
synthesis.
Finally,
elaborating
challenges
possible
solutions
for
developing
these
materials,
review
expected
provide
some
inspiration
future
used
efficient
energy
conversions.
Advanced Materials,
Год журнала:
2022,
Номер
34(45)
Опубликована: Май 27, 2022
Artificial
photosynthetic
solar-to-chemical
cycles
enable
an
entire
environment
to
operate
in
a
more
complex,
yet
effective,
way
perform
natural
photosynthesis.
However,
such
artificial
systems
suffer
from
lack
of
well-established
photocatalysts
with
the
ability
harvest
solar
spectrum
and
rich
catalytic
active-site
density.
Benefiting
extensive
experimental
theoretical
investigations,
this
bottleneck
may
be
overcome
by
devising
photocatalytic
platform
based
on
metal
sulfides
predominant
electronic,
physical,
chemical
properties.
These
tunable
properties
can
endow
them
abundant
active
sites,
favorable
light
utilization,
expedited
charge
transportation
for
conversion.
Here,
it
is
described
how
some
vital
lessons
extracted
previous
investigations
are
employed
promote
further
development
photosynthesis,
including
water
splitting,
CO2
reduction,
N2
pollutant
removal.
Their
functions,
properties,
synthetic
strategies,
emerging
issues,
design
principles,
intrinsic
functional
mechanisms
redox
reactions
discussed
detail.
Finally,
associated
challenges
prospects
utilization
highlighted
future
trends
photocatalysis
envisioned.
Chemical Reviews,
Год журнала:
2022,
Номер
122(3), С. 4204 - 4256
Опубликована: Янв. 13, 2022
Sunlight-driven
water
splitting
to
produce
hydrogen
fuel
has
stimulated
intensive
scientific
interest,
as
this
technology
the
potential
revolutionize
fossil
fuel-based
energy
systems
in
modern
society.
The
oxygen
evolution
reaction
(OER)
determines
performance
of
overall
owing
its
sluggish
kinetics
with
multielectron
transfer
processing.
Polymeric
photocatalysts
have
recently
been
developed
for
OER,
and
substantial
progress
realized
emerging
research
field.
In
Review,
focus
is
on
photocatalytic
technologies
materials
polymeric
OER.
Two
practical
systems,
namely,
particle
suspension
film-based
photoelectrochemical
form
two
main
sections.
concept
reviewed
terms
thermodynamics
kinetics,
are
discussed
based
three
key
characteristics,
light
absorption,
charge
separation
transfer,
surface
oxidation
reactions.
A
satisfactory
OER
by
will
eventually
offer
a
platform
achieve
other
advanced
applications
cost-effective,
sustainable,
renewable
manner
using
solar
energy.
Abstract
Photoelectron
transfer
between
heterojuctions
is
an
important
process
for
photocatalysis,
and
identification
of
the
electron
provides
valuable
information
catalyst
design.
Herein,
Ti
3
C
2
,
one
widely
used
two‐dimensional
materials,
to
produce
a
heterojunction
TiO
by
in
situ
growth
method
photogenerated
electrons
two
components
photocatalytic
water
splitting
hydrogen
investigated.
Theoretical
simulation
experimental
tests
proclaim
that
from
forms
internal
electric
field,
which
implies
there
exists
driving
force
electronic
movement
.
In
irradiation
X‐ray
photoelectron
spectroscopy
shows
binding
energies
TiC
(in
)
TiO
move
toward
negative
positive
positions,
respectively,
verifying
produced
transferring
driven
field.
addition,
amount
nanoparticles
also
affects
evolution
rate.
Several
parallel
experiments
are
designed
uncover
fact
less
or
excess
leads
tinier
shift
energy,
hints
quantity
considerable
factor
performance.
This
work
develops
new
directly
monitor
heterojuctions.
Advanced Materials,
Год журнала:
2022,
Номер
34(28)
Опубликована: Янв. 21, 2022
As
a
wide-bandgap
semiconductor
material,
titanium
dioxide
(TiO2
),
which
possesses
three
crystal
polymorphs
(i.e.,
rutile,
anatase,
and
brookite),
has
gained
tremendous
attention
as
cutting-edge
material
for
application
in
the
environment
energy
fields.
Based
on
strong
attractiveness
from
its
advantages
such
high
stability,
excellent
photoelectric
properties,
low-cost
fabrication,
construction
of
high-performance
photodetectors
(PDs)
based
TiO2
nanostructures
is
being
extensively
developed.
An
elaborate
microtopography
device
configuration
most
widely
used
strategy
to
achieve
efficient
-based
PDs
with
performances;
however,
deep
understanding
all
key
parameters
that
influence
behavior
photon-generated
carriers,
also
highly
required
improved
performances,
well
their
ultimate
functional
applications.
Herein,
an
in-depth
illustration
electrical
optical
properties
addition
advances
technological
issues
preparation,
microdefects,
p-type
doping,
bandgap
engineering,
heterojunctions,
applications
are
presented.
Finally,
future
outlook
PDs,
particularly
further
provided.
This
work
will
systematically
illustrate
fundamentals
shed
light
preparation
more
heterojunctions
Chemistry - An Asian Journal,
Год журнала:
2020,
Номер
15(20), С. 3239 - 3253
Опубликована: Авг. 29, 2020
Nowadays,
an
ever-increasing
variety
of
organic
contaminants
in
water
has
caused
hazards
to
the
ecological
environment
and
human
health.
Many
them
are
persistent
non-biodegradable.
Various
techniques
have
been
studied
for
sewage
treatment,
including
biological,
physical
chemical
methods.
Photocatalytic
advanced
oxidation
processes
(AOPs)
received
increasing
attention
due
their
fast
reaction
rates
strong
capability,
low
cost
compared
with
non-photolytic
AOPs.
This
review
is
dedicated
summarizing
up-to-date
research
progress
photocatalytic
AOPs,
such
as
Fenton
or
Fenton-like
reaction,
ozonation
sulfate
radical-based
processes.
Mechanisms
activation
discussed.
Then,
paper
summarizes
materials
modification
strategies,
defect
chemistry,
morphology
control,
heterostructure
design,
noble
metal
deposition.
The
future
perspectives
challenges
also
Chemosphere,
Год журнала:
2021,
Номер
271, С. 129506 - 129506
Опубликована: Янв. 2, 2021
Nanostructured
photocatalysts
have
always
offered
opportunities
to
solve
issues
concerned
with
the
environmental
challenges
caused
by
rapid
urbanization
and
industrialization.
These
materials,
due
their
tunable
physicochemical
characteristics,
are
capable
of
providing
a
clean
sustainable
ecosystem
humanity.
One
current
thriving
research
focuses
visible-light-driven
is
on
nanocomposites
titanium
dioxide
(TiO2)
carbon
nanostructures,
especially
graphene.
Coupling
TiO2
graphene
has
proven
more
active
photocatalysis
than
alone.
It
generally
considered
that
sheets
act
as
an
electron
acceptor
facilitating
transfer
separation
photogenerated
electrons
during
excitation,
thereby
reducing
electron-hole
recombination.
This
study
briefly
reviews
fundamental
mechanism
interfacial
charge-transfer
dynamics
in
TiO2/graphene
nanocomposites.
Design
strategies
various
graphene-based
hybrids
highlighted
along
some
specialized
synthetic
routes
adopted
attain
preferred
properties.
Importantly,
enhancing
charge
e¯CB
through
layers
morphology
orientation
TiO2,
predominated
exposure
high
energy
crystal
facets,
defect
engineering,
catalytic
sites
graphene,
constructing
dedicated
architectures,
tuning
nanomaterial
dimensionality
at
interface,
employing
synergism
modifications,
systematically
compiled.
Portraying
significance
these
photocatalytic
remediation,
important
applications
including
air
water
purification,
self-cleaning
surfaces,
H2
production,
CO2
reduction
desired
fuels,
addressed.
Advanced Materials,
Год журнала:
2021,
Номер
33(32)
Опубликована: Май 29, 2021
With
the
capability
of
inducing
intense
electromagnetic
field,
energetic
charge
carriers,
and
photothermal
effect,
plasmonic
metals
provide
a
unique
opportunity
for
efficient
light
utilization
chemical
transformation.
Earth-abundant
low-cost
Cu
possesses
tunable
localized
surface
plasmon
resonance
from
ultraviolet-visible
to
near
infrared
region.
Moreover,
essentially
exhibits
remarkable
catalytic
performance
toward
various
reactions
owing
its
intriguing
physical
properties.
Coupling
with
light-harvesting
ability
function,
serves
as
promising
platform
light-driven
reaction.
Herein,
recent
advancements
Cu-based
photocatalysis
are
systematically
summarized,
including
designing
synthetic
strategies
catalysts,
performance,
mechanistic
understanding
over
catalysts.
What's
more,
approaches
enhancement
efficiency
construction
active
centers
on
catalysts
highlighted
discussed
in
detail,
such
morphology
size
control,
regulation
electronic
structure,
defect
strain
engineering,
etc.
Remaining
challenges
future
perspectives
further
development
catalysis
also
proposed.
