ACS Applied Materials & Interfaces,
Journal Year:
2020,
Volume and Issue:
12(6), P. 7081 - 7090
Published: Jan. 22, 2020
The
electrochemical
nitrogen
reduction
reaction
(NRR)
is
a
very
efficient
method
for
sustainable
NH3
production,
but
it
requires
effective
catalysts
to
expedite
the
NRR
kinetics
and
inhibit
concomitant
hydrogen
evolution
(HER).
Two-dimensional
(2D)/2D
interface
engineering
an
design
powerful
due
intimate
face-to-face
contact
of
two
2D
materials
that
facilitates
strong
interfacial
electronic
interactions.
Herein,
we
explored
2D/2D
MoS2/C3N4
heterostructure
as
active
stable
catalyst.
exhibited
conspicuously
improved
performance
with
yield
18.5
μg
h-1
mg-1
high
Faradaic
efficiency
(FE)
17.8%
at
-0.3
V,
far
better
than
those
individual
MoS2
or
C3N4
component.
Density
functional
theory
calculations
revealed
charge
transport
from
could
enhance
activity
by
promoting
stabilization
key
intermediate
*N2H
on
Mo
edge
sites
concurrently
decreasing
energy
barrier.
Meanwhile,
rendered
more
favorable
*H
adsorption
free
S
MoS2,
thereby
protecting
NRR-active
competing
HER
leading
FE.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(43)
Published: Sept. 13, 2019
Abstract
Electronic
structure
greatly
determines
the
band
structures
and
charge
carrier
transport
properties
of
semiconducting
photocatalysts
consequently
their
photocatalytic
activities.
Here,
by
simply
calcining
mixture
graphitic
carbon
nitride
(g‐C
3
N
4
)
sodium
borohydride
in
an
inert
atmosphere,
boron
dopants
nitrogen
defects
are
simultaneously
introduced
into
g‐C
.
The
resultant
boron‐doped
nitrogen‐deficient
exhibits
excellent
activity
for
oxygen
evolution,
with
highest
evolution
rate
reaching
561.2
µmol
h
−1
g
,
much
higher
than
previously
reported
It
is
well
evidenced
that
conduction
valence
positions
substantially
continuously
tuned
simultaneous
introduction
exceptionally
modulated
both
effective
optical
absorption
visible
light
increased
driving
force
water
oxidation.
Moreover,
engineered
electronic
creates
abundant
unsaturated
sites
induces
strong
interlayer
C–N
interaction,
leading
to
efficient
electron
excitation
accelerated
transport.
In
present
work,
a
facile
approach
successfully
demonstrated
engineer
high‐performance
which
can
provide
informative
principles
design
photocatalysis
systems
solar
energy
conversion.
Journal of the American Chemical Society,
Journal Year:
2018,
Volume and Issue:
140(45), P. 15145 - 15148
Published: Oct. 31, 2018
Here
we
demonstrate
the
delicate
design
and
construction
of
hierarchical
Co9S8@ZnIn2S4
heterostructured
cages
as
an
efficient
photocatalyst
for
hydrogen
evolution
with
visible
light.
Two
photoactive
sulfide
semiconductors
are
rationally
integrated
into
a
hollow
structure
strongly
coupled
heterogeneous
shells
two-dimensional
ultrathin
subunits.
The
unique
architecture
can
efficiently
facilitate
separation
transfer
light-induced
charges,
offer
large
surface
area,
expose
rich
active
sites
photocatalytic
redox
reactions.
Owing
to
distinctive
structural
compositional
benefits,
heterostructures
without
using
any
cocatalysts
show
remarkable
activity
hydrogen-producing
rate
6250
μmol
h–1
g–1
high
stability
water
splitting.
Advanced Functional Materials,
Journal Year:
2019,
Volume and Issue:
29(13)
Published: Feb. 4, 2019
Abstract
Black
phosphorus
(BP)
has
increasingly
attracted
scientific
attention
since
its
first
applications
in
biomedicine
due
to
unique
properties
and
excellent
biocompatibility.
In
particular,
layer‐dependent
bandgap,
moderate
carrier
mobility,
large
surface‐area‐to‐volume
ratio,
biodegradability,
intrinsic
photoacoustic
properties,
biocompatibility
make
it
an
ideal
candidate
for
use
photothermal
therapy,
photodynamic
drug
delivery,
3D
printing,
bioimaging,
biosensing,
theranostics,
which
are
reviewed
here.
addition,
the
article
discusses
strategies
overcome
challenges
related
surface
instability
chemical
degradation,
a
major
obstacle
application.
This
review
not
only
provides
comprehensive
summary
on
BP
preparation
biomedical
but
also
summarizes
recent
research
future
possibilities.
Angewandte Chemie International Edition,
Journal Year:
2018,
Volume and Issue:
57(41), P. 13570 - 13574
Published: Aug. 30, 2018
Abstract
Halide
perovskite
quantum
dots
(QDs)
have
great
potential
in
photocatalytic
applications
if
their
low
charge
transportation
efficiency
and
chemical
instability
can
be
overcome.
To
circumvent
these
obstacles,
we
anchored
CsPbBr
3
QDs
(CPB)
on
NH
x
‐rich
porous
g‐C
N
4
nanosheets
(PCN)
to
construct
the
composite
photocatalysts
via
N−Br
bonding.
The
20
CPB‐PCN
(20
wt
%
of
QDs)
photocatalyst
exhibits
good
stability
an
outstanding
yield
149
μmol
h
−1
g
acetonitrile/water
for
reduction
CO
2
under
visible
light
irradiation,
which
is
around
15
times
higher
than
that
QDs.
This
study
opens
up
new
possibilities
using
halide
application.
Angewandte Chemie International Edition,
Journal Year:
2019,
Volume and Issue:
58(7), P. 2073 - 2077
Published: Jan. 2, 2019
Black
phosphorus
(BP),
a
star-shaped
two-dimensional
material,
has
attracted
considerable
attention
owing
to
its
unique
chemical
and
physical
properties.
BP
shows
great
potential
in
photocatalysis
area
because
of
excellent
optical
properties;
however,
applications
this
field
have
been
limited
date.
Now,
Z-scheme
heterojunction
2D/2D
BP/monolayer
Bi2
WO6
(MBWO)
is
fabricated
by
simple
effective
method.
The
BP/MBWO
exhibits
enhanced
photocatalytic
performance
water
splitting
produce
H2
NO
removal
purify
air;
the
highest
evolution
rate
21042
μmol
g-1
,
9.15
times
that
pristine
MBWO
ratio
was
as
high
67
%.
A
mechanism
proposed
based
on
monitoring
.
O2-
OH,
NO2
NO3-
species
reaction.
This
work
broadens
highlights
promise
treatment
environmental
pollution
renewable
energy
issues.
