Synergistic Utilization of Photogenerated Electrons and Holes in Carbon Nitride Nanosheet Assembly for Enhanced Photocatalytic H2O2 Production
Peipei Sun,
No information about this author
Kang Zhong,
No information about this author
Xunhuai Huang
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et al.
Applied Catalysis B Environment and Energy,
Journal Year:
2025,
Volume and Issue:
unknown, P. 124998 - 124998
Published: Jan. 1, 2025
Language: Английский
Electro-Fenton process for wastewater treatment: From selective H2O2 generation to efficient •OH conversion
Jialong Yin,
No information about this author
Heng Zhang,
No information about this author
Meng-Fan Luo
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160709 - 160709
Published: Feb. 1, 2025
Language: Английский
A self-supported electrochemical immunosensor based on Cu2O/CuO@AuNPs heterostructures for sensitive and selective detection of ochratoxin A in food
Yan Zhang,
No information about this author
Minghui Han,
No information about this author
Danni Peng
No information about this author
et al.
Talanta,
Journal Year:
2025,
Volume and Issue:
287, P. 127657 - 127657
Published: Jan. 28, 2025
Language: Английский
Bringing Porous Framework Materials toward Photocatalytic H2O2 Production
Chenhao Bao,
No information about this author
Lan Li,
No information about this author
Xiaofei Wang
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et al.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Photocatalytic
H2O2
production
driven
by
renewable
solar
energy
is
a
promising
and
sustainable
approach,
with
porous
framework
materials
such
as
metal-organic
frameworks
(MOFs),
covalent
organic
(COFs),
hydrogen-bonded
(HOFs)
emerging
highly
efficient
catalysts.
This
Review
first
presents
the
current
research
state
of
in
photosynthesis,
focusing
on
progress
across
different
mechanism
insights
gained
through
advanced
techniques.
Furthermore,
systematic
categorization
material
modifications
aimed
at
enhancing
photocatalytic
efficiency
provided,
linking
structural
to
improved
performance.
Key
factors
charge
carrier
separation
transfer,
reaction
pathways,
stability
are
comprehensively
analyzed.
Finally,
challenges
related
stability,
scalability,
cost-effectiveness,
discussed
alongside
opportunities
for
future
advancements.
aims
provide
into
understanding
optimizing
scalable
photosynthesis.
Language: Английский
N-Doped Porous Graphene Film Decorated with Palladium Nanoparticles for Enhanced Electrochemical Detection of Hydrogen Peroxide
Yue Zhang,
No information about this author
Shi Zheng,
No information about this author
Jian Xiao
No information about this author
et al.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(4), P. 298 - 298
Published: March 21, 2025
Graphene
film
has
excellent
electrical
conductivity
and
flexibility,
with
which
it
can
be
used
as
a
versatile
substrate
to
load
active
species
construct
free-standing
electrochemical
sensors.
In
this
work,
Pd
nanoparticle-decorated
N-doped
porous
graphene
(Pd/NPGF)
was
prepared
by
simple
mild
strategy
enhance
the
behavior
of
film-based
electrodes.
The
morphological
structure
surface
component
Pd/NPGF
were
characterized
scanning
electron
microscopy,
transmission
Raman
spectra
X-ray
photoelectron
spectroscopy
measurements.
results
revealed
that
contained
abundant
pores
uniformly
dispersed
nanoparticles,
could
bring
favorable
response.
Due
synergetic
effects
pores,
uniform
nanoparticles
substitutional
doping
framework
N,
novel
electrode
provides
high
site
exposure,
specific
area
fast
electron/mass
diffusion
during
reactions.
Considering
flexibility
Pd/NPGF,
we
selected
hydrogen
peroxide,
significant
biomarker,
model
investigate
its
performance
in
neutral
conditions.
biosensor
based
on
exhibited
enhanced
activity
relative
NPGF
(PGF)
different
concentrations
H2O2.
displayed
sensitivity
(176.7
μA·mM−1·cm−2),
large
linear
range
from
5
μM
36.3
mM,
low
limit
detection
(LOD)
2.3
μM,
stability
short
response
time,
all
qualify
for
promising
sensor
H2O2
sensing.
Language: Английский
Au confined covalent organic frameworks nanoenzyme integrated with sodium alginate microsphere for portable colorimetric tannic acid detection
Yan Zhang,
No information about this author
Haowen Qin,
No information about this author
Danni Peng
No information about this author
et al.
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown, P. 142556 - 142556
Published: March 1, 2025
Language: Английский
Pyridine Functionalized β-Ketoenamine-Linked Covalent Organic Framework Nanostructures for H2O2 Photosynthesis
Qiaobo Liao,
No information about this author
Ziyu Li,
No information about this author
Qiannan Sun
No information about this author
et al.
ACS Applied Nano Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Language: Английский
Ladder‐Like Built‐In Electric Field Enhances Self‐Assembly, Carrier Separation and Ultra‐Efficient Photocatalytic Oxygen Reduction
Chen Li,
No information about this author
Jiawei Song,
No information about this author
Peijie Ma
No information about this author
et al.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Semiconductor
heterojunctions
can
significantly
enhance
the
separation
of
photogenerated
charge
carriers,
among
which
Z‐type
are
more
conducive
to
photocatalysis
due
their
special
transfer
paths
and
strong
oxidizing
reducing
properties.
However,
introducing
efficient
active
sites
has
always
been
a
significant
challenge
in
improvement
heterogeneous
photocatalysts.
Herein,
through
in‐depth
analysis
reaction
mechanism
structural
characteristics,
single
atom
catalysts
ingeniously
integrated
using
built‐in
electric
fields.
For
first
time,
suitable
metal
successfully
designed
under
electronic
structure
at
N‐terminal,
utilizing
low
electronegativity
non‐metallic
element
doping
counteract
local
electron
migration
from
heterojunctions.
Ladder‐like
field
composed
divergent
parallel
fields
respectively,
introduces
new
carrier
path.
AgPCN/BCN
heterojunction
reaches
hydrogen
peroxide
(H
2
O
)
yield
559.5
µM∙h
−1
an
apparent
quantum
efficiency
17.8%
2e
−
oxygen
reduction
reaction.
Photoelectrochemical
tests
indicate
importance
4e
water
oxidation
as
auxiliary
This
novel
innovative
photocatalyst
brings
approaches
for
photocatalysts
improvement,
insights
into
role
photocatalytic
mechanisms.
Language: Английский
Enzymatic Modulating Zinc-Air Battery-Based Self-Powered Sensor Coupling Photoactive Covalent Organic Framework for Organophosphorus Pesticide Detection
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: June 4, 2025
Self-powered
electrochemical
sensors
(SPES)
have
gained
significant
attention
with
the
characteristics
of
portability,
high
sensitivity,
and
no
requirement
an
external
power
supply.
Herein,
a
novel
photoassisted
zinc-air
battery-based
SPES
(PZAB-SPES)
was
developed
for
organophosphorus
pesticide
detection
based
on
photoactive
covalent
organic
framework
(COF)
enzymatic
modulation
strategy.
The
in
situ
grown
COF
nanosheets
not
only
acted
as
photocathode
but
also
served
nanocarriers
silver
nanoparticles
(AgNPs)
to
improve
photoelectric
conversion
efficiency
surface
plasmon
resonance
effect,
which
markedly
increased
open-circuit
voltage
up
1.469
V.
Based
aptamer-target
recognition
efficient
separation
magnetic
beads,
alkaline
phosphatase
(ALP)-catalyzed
reaction
triggered,
resulting
hydrolysis
sodium
thiophosphate
(TP)
generation
hydrogen
sulfide
(H2S).
generated
H2S
caused
oxidation
AgNPs
form
(Ag2S),
decreased
inhibited
oxygen
reduction
reaction,
leading
decrease
voltage.
As
proof
concept,
proposed
PZAB-SPES
exhibited
good
analytical
performance
acetamiprid
ranging
from
0.01
1000
ng/mL,
low
limit
1.1
pg/mL.
This
fascinating
sensing
platform
provided
method
detection,
holding
extensive
application
prospects
food
safety
environmental
monitoring.
Language: Английский
Three-Dimensional Bicarbazole-Based Covalent Organic Frameworks as Efficient Yeager-Type Photocatalysts for H2O2 Generation in a Two-Phase System
Aiguo Kong,
No information about this author
Tao Yang,
No information about this author
Hai Yan
No information about this author
et al.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: June 5, 2025
Photocatalytic
reduction
of
oxygen
to
hydrogen
peroxide
(H2O2)
represents
an
attractive
solar-to-chemical
conversion
pathway.
Nevertheless,
it
remains
a
significant
challenge
achieve
efficient
H2O2
photosynthesis
while
simultaneously
mitigating
photocorrosion
the
catalysts
owing
presence
superoxide
radicals
(•O2-)
and
accumulation
photoexcited
holes
(h+).
In
present
work,
1,2,3,4-tetrahydroisoquinoline
(THIQ)-water
two-phase
system
was
developed
high-efficiency
durable
production
by
suppressing
•O2-
intermediates
rapidly
consuming
h+.
The
•O2--free
direct
two-electron
reaction
(2e-
ORR)
accomplished
on
special
three-dimensional
(3D)
covalent
organic
framework
(COF)
metal-free
photocatalysts
consisting
bicarbazole
units
(BCTB)
as
electron
donors
thiazole
(BT)
or
triazine
(TAPT)
acceptors
(COF-BCTB-BT
COF-BCTB-TAPT).
unique
structures
endow
them
with
high
rate
in
water
phase
∼33.2
mmol
gcat.-1
h-1
over
COF-BCTB-BT.
other
phase,
h+
also
efficiently
consumed
semidehydrogenation
THIQ
(THIQ-SDR)
3,4-dihydroisoquinoline
(DHIQ).
Theoretical
calculations
revealed
Yeager-type
four-step
2e-
ORR
mechanism
two
COFs,
lower
energy
barrier
*O-O
*O-OH
for
A
THIQ-SDR
DHIQ
suggested.
This
work
provides
impressive
strategy
3D
bis-heterocyclic
COF
photocatalysts,
effectively
both
formation
accumulation.
Language: Английский