Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
64(1), P. 627 - 637
Published: Dec. 24, 2024
In
semiconductor
catalysts,
rational
doping
of
nonmetallic
elements
holds
significant
scientific
and
technological
importance
for
enhancing
photocatalytic
performance.
Here,
using
a
one-step
hydrothermal
technique,
we
synthesized
iodine-doped
Bi3O4Cl
composite
evaluated
the
impact
iodine
on
its
capability
organic
dye
degradation
under
visible
light
irradiation.
this
study,
demonstrate
that
introduction
iodide
ions
not
only
provides
an
ideal
built-in
electric
field
(BIEF)
but
also
induces
generation
additional
oxygen
vacancies
(OVs).
The
significantly
enhanced
BIEF,
along
with
collaborative
effect
OVs-induced
narrow
bandgap
in
Bi3O4Cl,
effectively
promotes
separation
transfer
efficiency
photogenerated
charges
while
suppressing
recombination.
Under
driving
force,
electrons
to
surface
OVs,
facilitating
activation
oxygen,
thereby
forming
highly
active
superoxide
radicals
(•O2).
Simultaneously,
vacancy
engineering
can
reduce
reaction
energy
barrier,
formation
singlet
(1O2),
which
contributes
processes.
results
indicate
light,
prepared
exhibits
6.5-fold
increase
rate
constant
rhodamine
B
demonstrates
activity
toward
methyl
orange
methylene
blue.
This
study
strong
references
optimizing
structural
design
enhance
performance
offers
profound
insights
into
synergistic
effects
BIEF
OVs
charge
mechanisms
systems.
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Abstract
Photocatalytic
production
of
hydrogen
peroxide
(H
2
O
)
represents
a
significant
approach
to
achieving
sustainable
energy
generation
through
solar
energy,
addressing
both
shortages
and
environmental
pollution.
Among
various
photocatalytic
materials,
covalent
organic
frameworks
(COFs)
have
gained
widespread
attention
in‐depth
research
due
their
unique
advantages,
including
high
porosity,
predesignability,
atomic‐level
tunability.
In
recent
years,
progress
has
been
made
in
the
development,
performance
enhancement,
mechanistic
understanding
COF‐based
photocatalysts.
This
review
focuses
on
latest
advancements
H
using
COFs,
particularly
emphasizing
rational
design
COF
structures
regulate
catalytic
exploring
fundamental
processes
involved
photocatalysis.
Based
current
achievements
this
field,
paper
also
discusses
existing
challenges
future
opportunities,
aiming
provide
reference
for
application
COFs
production.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 9, 2025
The
magnetic
field
as
a
"non-contact"
external
can
instantaneously
affect
the
separation
and
migration
of
photogenerated
carriers
during
photocatalytic
reaction.
This
facilitates
large-scale
industrial
application
photocatalysis
technology.
Consequently,
potential
for
using
fields
to
enhance
in
environmental
pollution
control
clean
energy
production
has
received
significant
attention.
Herein,
principle
acting
on
reaction
is
discussed,
including
spin
polarization,
Lorentz
force,
negative
magnetoresistance,
electromotive
force.
In
particular,
typical
devices
settings
involved
current
research
field-assisted
are
exhibited.
Meanwhile,
performance
specific
applications
presented.
efficiency
experimental
parameters
catalysts
classified
organized
by
their
fields.
It
highlighted
summarize
interpret
mechanisms
underlying
presented
previous
studies,
along
with
latest
validation
techniques.
Finally,
challenges
opportunities
discussed.
review
offers
valuable
insights
guidance
design
development
innovative
systems,
thereby
accelerating
Chemistry of Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Covalent
organic
frameworks
(COFs)
have
recently
demonstrated
significant
potential
for
photocatalysis.
Optimizing
the
local
electronic
environment
in
COFs
has
been
considered
to
be
critical
enhancing
photocatalytic
activity.
Here,
we
report
a
one-pot
"grafting-to"
strategy
reprogram
configurations
of
series
isoreticular
multicomponent
by
introducing
electron-donating
or
electron-withdrawing
groups
into
pores
transform
photoinert
photoactive
and
form
intramolecular
donor–acceptor
(D-A)
structures.
Such
D-A
structures
enhanced
overall
hydrogen
peroxide
photoproduction
facilitating
charge
carrier
separation
optimizing
band
achieve
oxygen
reduction
reaction
water
oxidation
simultaneously.
Notably,
one
incorporated
with
2-aminothiazole
exhibits
production
rate
3701
μmol
g–1
h–1
solar-to-chemical
conversion
efficiency
0.13%
without
use
any
sacrificial
reagents,
it
100%
bacterial
killing
rates
remarkable
>90%
biofilm
removal
capability.
This
COF
modification
strategy,
which
not
reported
before,
offers
unique
approach
constructing
highly
active
photocatalysts
containing
great
future
design
antibacterial
therapies.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Abstract
Covalent
organic
frameworks
(COFs)
are
promising
for
photocatalytic
H₂O₂
generation.
However,
imine‐linked
COFs
often
suffer
from
poor
charge
separation
and
low
performance.
Therefore,
constructing
sp
2
carbon‐linked
with
extended
π‐conjugation
is
very
significant
in
boosting
the
properties,
but
their
synthesis
challenging
due
to
reversibility
of
C═C
bond.
Here,
two
vinylene‐linked
COFs:
BBT‐ACN
COF‐1
COF‐2
designed.
To
investigate
effects
different
structures
on
exciton
binding
energy
(
E
b
),
designed
possesses
a
Donor–Acceptor
(D–A)
structure
electron‐deficient
benzobisthiazole
(BBT)
as
acceptor
benzotrithiophene
donor,
while
latter
holds
π‐A
pyrene
π‐unit
BBT
acceptor.
Both
show
production
activity
two‐step
2e
−
oxygen
reduction
reaction
(ORR).
As
anticipated,
D–A
structured
exhibits
lower
value,
its
H
O
rate
pure
water
air
reaches
up
2.50
mmol
g⁻¹
h⁻¹,
≈3
times
higher
than
that
(0.91
h⁻¹).
This
study
reveals
fully
‐carbon‐linked
beneficial
production,
which
provides
an
effective
approach
designing
high‐performance
photocatalysts.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 16, 2025
Abstract
Graphite
phase
carbon
nitride
(CN)
emerges
as
a
promising
catalyst
for
sunlight‐driven
H
2
O
synthesis
owing
to
its
merits
of
stable
physicochemical
properties,
distinctive
electronic
structure,
adjustable
bandgap,
etc.,
yet
poor
charge
behavior,
especially
high
carrier
recombination
and
low
migration
rate,
limit
photocatalytic
activity.
Herein,
molecularly
tunable
donor‐acceptor
(D‐A)
integrated
CN
is
fabricated
via
cytosine
doping
combined
with
molten
salt‐assisted
calcination.
The
utilized
achieves
the
highest
H₂O₂
yield
8.07
mmol
g
−1
h
,
which
exceeds
initial
by
factor
40.4,
surpassing
numerous
reported
CN‐based
photocatalysts.
Series
characterizations/tests
(e.g.,
transient
absorption,
steady‐state
SPV
spectra,
KPFM)
theoretical
calculations
HOMO/LUMO,
adsorption
energy)
confirm
that
incorporation
K
+
‐C≡N
pyrimidine
ring
disrupts
symmetry
establishes
D‐A
significantly
augmenting
separation
photogenerated
charges.
capture
experiment
rotating
disk
electrode
test
affirm
two‐step
single
electron
oxygen
reduction
pathway
occurs
in
process
synthesis.
This
work
offers
novel
approaches
profound
revelations
development
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 15, 2024
Developing
catalysts
with
rich
metal
defects,
strong
hydrophilicity,
and
extensive
grain
boundaries
is
crucial
for
enhancing
the
kinetics
of
electrocatalytic
water
oxidation
facilitating
large-current
splitting.
In
this
study,
we
utilized
pH-controlled
etching
gas-phase
phosphating
to
synthesize
a
flower-like
Ni
