Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(69)
Опубликована: Сен. 7, 2023
Designing
unique
nanomaterials
for
the
selective
sensing
of
biomolecules
is
significant
interest
in
field
nanobiotechnology.
In
this
work,
we
demonstrated
synthesis
ordered
Cu
nanoparticle-functionalised
mesoporous
C3
N5
that
has
peroxidase-like
nanozymatic
activity
ultrasensitive
and
detection
glucose
glutathione.
A
nano
hard-templating
technique
together
with
in-situ
polymerisation
self-assembly
high
N-containing
CN
precursor
was
adopted
to
introduce
mesoporosity
as
well
N
content
.
Due
structure
highly
dispersed
,
a
large
enhancement
peroxidase
mimetic
oxidation
redox
dye
presence
hydrogen
peroxide
could
be
obtained.
Additionally,
optimised
Cu-functionalised
exhibited
excellent
sensitivity
glutathione
low
limit
2.0
ppm.
The
strong
also
effectively
used
0.4
mM
through
oxidase.
This
potential
detecting
various
molecules
environment
next-generation
diagnostic
devices.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(38)
Опубликована: Май 7, 2024
Abstract
Solar‐driven
synthesis
of
hydrogen
peroxide
(H
2
O
)
through
photocatalysis
stands
out
as
a
promising
avenue
for
sustainable
energy
generation,
marked
by
environmental
friendliness
and
industrial
feasibility.
However,
the
inherent
limitations
carbon
nitride
(CN)
in
photocatalytic
H
production
significantly
impede
their
performance.
Herein,
novel
0D/2D
dots‐modified
CN
nanosheet
heterojunction
(CDsMCN)
is
introduced,
synthesized
hydrothermal‐calcination
tandem
strategy
induced
CDs
derived
from
melamine.
This
innovative
technique
enhances
n→π*
electronic
transition
CDsMCN,
accelerating
separation
efficiency
electron‐hole
pairs,
boosting
oxygen
adsorption,
promoting
highly
selective
2e
−
ORR.
Comparative
to
pristine
CN,
10
MCN
exhibited
remarkable
tenfold
increase
production,
reaching
an
impressive
1.48
mmol
L
−1
.
Furthermore,
demonstrates
exceptional
stability,
maintaining
its
catalytic
at
initial
level
over
four
consecutive
cycles.
The
notable
achievement
molar
selectivity
≈80%
onset
potential
0.6
V
(vs
RHE)
underscores
ability
produce
desired
product
selectively.
Advanced
situ
characterization
together
with
DFT
calculations
revealed
that
ultrathin
enhanced
improves
optical
properties,
reduces
bandgap,
facilitates
fast
charge
migration,
increases
performance,
thereby
serving
candidate
advanced
applications.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(14), С. 8420 - 8428
Опубликована: Янв. 1, 2024
Intramolecular
donor–acceptor
conjugated
polymer
was
constructed
in
resorcinol-formaldehyde
resin
by
embedding
benzothiadiazole,
which
can
reduce
the
Gibbs
free
energy
for
two-electron
oxygen
reduction
and
improve
photocatalytic
H
2
O
evolution.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(30)
Опубликована: Май 17, 2024
Abstract
Organic
supermolecules
have
shown
great
promise
for
photocatalytic
hydrogen
peroxide
(H
2
O
)
production.
However,
the
limitation
of
intramolecular
charge
separation
efficiency
is
still
a
crucial
scientific
problem.
In
this
study,
novel
acceptor–donor–acceptor
(A–D–A)
type
naphthalenediimide
supramolecule
(SA‐NDI)
successfully
designed
overcoming
fundamental
issues
in
organic
supermolecule.
Composed
one
electron‐rich
core
(naphthalenediimide)
and
two
electron‐poor
units
(aminopyridine),
possesses
strong
transfer
ability.
Meanwhile,
SA‐NDI
has
an
obviously
stronger
internal
electric
field,
which
2.83
times
higher
than
that
D–A
supramolecule.
The
A–D–A
efficiently
accelerates
separation,
so
electron
quickly
migrates
to
acceptor
two‐electron
oxygen
reduction
reaction.
shows
excellent
H
accumulation
ability
(13.7
m
stable
cyclic
time
above
120
h.
catalyst
exhibits
superior
solar‐to‐chemical
conversion
1.03%
under
simulated
solar
irradiation.
This
work
provides
entirely
new
idea
design
with
efficient
monomer.
