Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 27, 2024
Abstract
Hydrogen
peroxide
(H
2
O
)
is
a
crucial
oxidant
in
advanced
oxidation
processes.
In
situ,
photosynthesis
of
it
natural
water
holds
the
promise
practical
application
for
remediation.
However,
current
H
systems
primarily
relies
on
oxygen
reduction,
leading
to
limited
performance
with
low
dissolved
or
anaerobic
conditions
found
polluted
water.
Herein,
novel
photocatalyst
based
conjugated
polymers
alternating
electron
donor–acceptor
structures
and
electron‐withdrawing
side
chains
donors
introduced.
Specifically,
carbazole
functions
as
donor,
triazine
serves
acceptor,
cyano
acts
chain.
Notably,
exhibits
remarkable
solar‐to‐chemical
conversion
0.64%,
highest
reported
Furthermore,
even
conditions,
achieves
an
impressive
photosynthetic
efficiency
1365
µmol
g
−1
h
,
surpassing
all
.
This
improvement
attributed
effective
relocation
active
site
from
high‐energy
low‐energy
acetylene
mediated
by
chains,
resulting
enhanced
generation
breakthrough
offers
new
avenue
efficient
remediation
using
technologies
oxygen‐limited
environments,
holding
significant
implications
environmental
restoration.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(12)
Published: Jan. 25, 2024
Singlet
oxygen
(1
O2
)
plays
a
significant
role
in
environmental
and
biomedical
disinfection
fields.
Electrocatalytic
processes
hold
great
potential
for
1
generation,
but
remain
challenging.
Herein,
facile
Ni
doping
converted
spin-state
transition
approach
is
reported
boosting
production.
Magnetic
analysis
theoretical
calculations
reveal
that
occupied
at
the
octahedral
site
of
Co3
O4
can
effectively
induce
low-to-high
transition.
The
high-spin
Ni-Co3
generate
appropriate
binding
strength
enhance
electron
transfer
between
Co
centers
with
intermediates,
thereby
improving
catalytic
activity
effective
generating
.
In
neutral
conditions,
1×106
CFU
mL-1
Gram-negative
ESBL-producing
Escherichia
coli
(E.
coli)
could
be
inactivated
by
system
within
5
min.
Further
antibacterial
mechanisms
indicate
lead
to
cell
membrane
damage
DNA
degradation
so
as
irreversible
death.
Additionally,
developed
inactivate
bacteria
from
wastewater
bioaerosols.
This
work
provides
an
strategy
designing
electrocatalysis
boost
generation
process.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(29)
Published: March 14, 2024
Abstract
Porous
organic
polymers
have
an
outstanding
performance
in
the
field
of
photocatalysis
with
advantage
diverse
structure
composition
and
purposeful
molecular
design.
However,
inherent
high
impedance
poor
electrical
conductivity
semiconductors
still
restrict
charge
transfer
efficiency
thus
discount
photocatalytic
performance.
Herein,
study
reports
a
highly
conductive
covalent
triazine
framework
(CTF)
loading
carbon
quantum
dots
(CQDs)
into
porous
as
electron
transport
medium.
The
addition
CQDs
(0.5
wt%)
can
enhance
electronic
CTF
by
tenfold.
In
addition,
as‐prepared
CQD‐CTFs
express
much‐promoted
separation
efficiency.
Furthermore,
embedded
improve
oxidization
capacity
increase
affinity
H
+
due
to
more
negative
zeta
potential.
enhanced
oxidizing
ability
increased
are
positive
for
water
oxidation
reaction
(WOR)
oxygen
reduction
(ORR)
process
hydrogen
peroxide
(H
2
O
)
generation,
respectively.
optimized
CQD‐CTF
exhibits
generation
rate
up
1036
µmol
g
−1
h
pure
without
any
sacrificial
agent
under
visible
light,
which
is
4.6
times
than
pristine
CTF.
This
work
provides
new
idea
efficient
production
semiconductors.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 27, 2024
Abstract
Hydrogen
peroxide
(H
2
O
)
is
a
crucial
oxidant
in
advanced
oxidation
processes.
In
situ,
photosynthesis
of
it
natural
water
holds
the
promise
practical
application
for
remediation.
However,
current
H
systems
primarily
relies
on
oxygen
reduction,
leading
to
limited
performance
with
low
dissolved
or
anaerobic
conditions
found
polluted
water.
Herein,
novel
photocatalyst
based
conjugated
polymers
alternating
electron
donor–acceptor
structures
and
electron‐withdrawing
side
chains
donors
introduced.
Specifically,
carbazole
functions
as
donor,
triazine
serves
acceptor,
cyano
acts
chain.
Notably,
exhibits
remarkable
solar‐to‐chemical
conversion
0.64%,
highest
reported
Furthermore,
even
conditions,
achieves
an
impressive
photosynthetic
efficiency
1365
µmol
g
−1
h
,
surpassing
all
.
This
improvement
attributed
effective
relocation
active
site
from
high‐energy
low‐energy
acetylene
mediated
by
chains,
resulting
enhanced
generation
breakthrough
offers
new
avenue
efficient
remediation
using
technologies
oxygen‐limited
environments,
holding
significant
implications
environmental
restoration.
