Advanced Materials,
Год журнала:
2023,
Номер
36(2)
Опубликована: Июль 15, 2023
Abstract
Atomically
thin
two‐dimensional
(2D)
oxide
crystals
have
garnered
considerable
attention
because
of
their
remarkable
physical
properties
and
potential
for
versatile
applications.
In
recent
years,
significant
advancements
been
made
in
the
design,
preparation,
application
ultrathin
2D
oxides,
providing
many
opportunities
new‐generation
advanced
technologies.
This
review
focuses
on
controllable
preparation
applications
electronic
optoelectronic
devices.
Based
bonding
nature,
various
types
are
first
summarized,
including
both
layered
nonlayered
crystals,
as
well
current
top‐down
bottom‐up
synthetic
approaches.
Subsequently,
terms
unique
electrical
advances
device
emphasized,
photodetectors,
field‐effect
transistors,
dielectric
layers,
magnetic
ferroelectric
devices,
memories,
gas
sensors.
Finally,
conclusions
future
prospects
presented.
It
is
hoped
that
this
will
provide
comprehensive
insightful
guidance
development
Advanced Functional Materials,
Год журнала:
2021,
Номер
31(34)
Опубликована: Июнь 19, 2021
Abstract
Graphitic
carbon
nitride
(g‐C
3
N
4
)
have
attracted
great
attention
in
the
field
of
energy
conversion
and
storage
due
to
its
unique
layered
structure,
tunable
bandgap,
metal‐free
characteristic,
high
physicochemical
stability,
easy
accessibility.
2D
g‐C
nanosheets
features
short
charge/mass
transfer
path,
abundant
reactive
sites
functionalization,
which
are
beneficial
optimizing
their
performance
different
fields.
However,
reviews
comprehensive
applications
for
rare.
Herein,
this
review
first
introduces
properties
bulk
nanosheets,
then
summarizes
synthetic
strategies
detail,
such
as
thermal
oxidation
etching,
chemical
exfoliation,
ultrasonication‐assisted
liquid
phase
vapor
deposition,
others.
Emphasis
is
focused
on
rational
design
development
diversified
storage,
including
photocatalytic
H
2
evolution,
CO
reduction,
electrocatalytic
O
alkali‐metal
ion
batteries,
lithium‐metal
lithium–sulfur
metal‐air
supercapacitors.
Finally,
current
challenges
perspectives
discussed.
Abstract
The
combination
of
2D
materials
and
optical
biosensors
has
become
a
hot
research
topic
in
recent
years.
Graphene,
transition
metal
dichalcogenides,
black
phosphorus,
MXenes,
other
(metal
oxides
degenerate
semiconductors)
have
unique
properties
play
role
the
detection
different
biomolecules.
Through
modification
materials,
biosensor
advantages
that
traditional
sensors
(such
as
electrical
sensing)
do
not
have,
sensitivity
limit
are
greatly
improved.
Here,
based
on
reviewed.
First,
various
methods
biomolecules,
including
surface
plasmon
resonance
(SPR),
fluorescence
energy
transfer
(FRET),
evanescent
wave
properties,
preparation
integration
strategies
material,
introduced
detail.
Second,
summarized.
Furthermore,
applications
these
biological
imaging,
food
safety,
pollution
prevention/control,
medicine
discussed.
Finally,
future
development
is
prospected.
It
believed
with
their
in‐depth
laboratory,
will
gradually
commercialized
improve
people's
quality
life
many
aspects.
ACS Omega,
Год журнала:
2022,
Номер
7(40), С. 35387 - 35445
Опубликована: Сен. 28, 2022
Graphene
oxide
(GO)
has
attracted
much
attention
in
the
past
few
years
because
of
its
interesting
and
promising
electrical,
thermal,
mechanical,
structural
properties.
These
properties
can
be
altered,
as
GO
readily
functionalized.
Brodie
synthesized
1859
by
reacting
graphite
with
KClO3
presence
fuming
HNO3;
reaction
took
3–4
days
to
complete
at
333
K.
Since
then,
various
schemes
have
been
developed
reduce
time,
increase
yield,
minimize
release
toxic
byproducts
(NO2
N2O4).
The
modified
Hummers
method
widely
accepted
produce
bulk.
Due
versatile
characteristics,
a
wide
range
applications
different
fields
like
tissue
engineering,
photocatalysis,
catalysis,
biomedical
applications.
Its
porous
structure
is
considered
appropriate
for
organ
regeneration.
Various
branches
engineering
are
being
extensively
explored,
such
bone,
neural,
dentistry,
cartilage,
skin
engineering.
band
gap
easily
tuned,
therefore
it
photocatalytic
well:
degradation
organic
contaminants,
hydrogen
generation,
CO2
reduction,
etc.
could
potential
nanocarrier
drug
delivery
systems,
gene
delivery,
biological
sensing,
antibacterial
nanocomposites
due
large
surface
area
high
density,
highly
functionalized
oxygen-containing
functional
groups.
or
composites
found
species
also
discussed
this
review.
It
observed
that
superoxide
dismutase
(SOD)
reactive
oxygen
(ROS)
levels
gradually
over
period
after
introduced
systems.
Hence,
specific
concentrations
earthworms,
Chironomus
riparius,
Zebrafish,
Abstract
Given
severe
harmfulness
of
pesticides,
unique
characteristics
peroxidase‐mimetic
nanozymes,
and
favorable
prospects
paper‐based
analytical
devices
(PADs),
it
is
highly
desirable
to
construct
a
nanozyme‐based
PAD
for
intelligent
analysis
pesticide
without
enzyme/aptamer/antibody
interference
O
2
.
Herein,
2D
nanosheet‐like
V
5
(2D‐VONz)
with
exclusive
activity
controllably
prepared
under
the
optimal
reactants
concentration
reaction
temperature.
Experimental
characterizations
demonstrate
that
2D‐VONz
exhibits
high
affinity
catalytic
rate,
oxidation
dependent
on
•OH
yielded
from
decomposition
H
catalyzed
by
2D‐VONz,
performance
relevant
π–π
stacking
force‐controlled
surface
zeta
potential
changed
substrates,
giving
comprehensive
understand
inherent
mechanism.
Interestingly,
inhibited
glyphosate
(Gly),
then
exploited
develop
PAD,
which,
Gly
declines
prevent
catalyzing
3,3′,5,5′‐tetramethylbenzidine,
contributing
rapid,
naked‐eye,
portable
using
smartphone.
The
current
strategy
preparing
nanozyme,
investigating
mechanism,
developing
achieving
direct
sensing
will
set
up
new
avenues
improve
performance,
strengthen
practicability,
broaden
application
scope
nanozymes.
