Cobalt-modified crystalline carbon nitride homojunction with enhanced interfacial charge separation for photocatalytic pure water splitting
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
688, С. 375 - 385
Опубликована: Фев. 20, 2025
Язык: Английский
Bio‐Inspired Synthesis and Photocatalytic Applications of α‐Fe₂O₃@ZnO Nanobinary Using Laurus nobilis Leaf Extract: Efficient for Anionic and Cationic Dye Degradation With Reusability Studies
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(4)
Опубликована: Март 11, 2025
ABSTRACT
This
study
investigates
the
sustainable
synthesis
and
applications
of
α‐Fe₂O₃@ZnO
nanocomposites
derived
using
Laurus
nobilis
leaf
extract
as
a
natural
reducing
agent,
promoting
eco‐friendly
material
development
for
environmental
remediation.
XRD
analysis
confirmed
formation
nanocomposite
with
crystallite
size
21.48
nm,
while
SEM
revealed
porous
structure
uniformly
distributed
particles
ranging
from
20
to
50
nm.
FTIR
spectroscopy
identified
characteristic
Fe‐O
Zn‐O
bonds,
ensuring
nanocomposite's
purity.
Optical
showed
direct
indirect
bandgap
energies
2.80
1.16
eV,
respectively,
highlighting
its
excellent
optical
properties.
The
demonstrated
remarkable
photocatalytic
efficiency,
achieving
96.3%
degradation
Brilliant
Cresyl
Blue
(BCB)
dye
95.88%
Rose
Bengal
(RB)
within
120
min
under
sunlight
irradiation.
followed
first‐order
kinetics,
rate
constants
0.0241
−1
BCB
0.01875
RB.
exhibited
reusability,
maintaining
93.5%
efficiency
after
five
cycles,
structural
stability
throughout
repeated
use.
These
results
underscore
multifunctional
potential
green‐synthesized
dye‐contaminated
wastewater
treatment,
contributing
technologies.
Язык: Английский
Structurally Modulated NiV-LDH with CdMoSe-Quantum Dots: Unlocking the Active Centers at S-Scheme Heterojunctions for Stimulating Photocatalytic H2O2 Production and H2 Evolution
Preeti Prabha Sarangi,
Kundan Kumar Das,
Jyotirmayee Sahu
и другие.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Designing
and
accumulating
quantum
dots
(QD)
onto
layered
double
hydroxide
(LDH)
for
the
photocatalytic
production
of
H2
H2O2
is
a
formidable
task.
Here,
we
intended
synthesis
procedure
CdMoSe-QD
(CMS)-incorporated
NiV-LDH
(NV)
through
facile
in
situ
reflux
method
explored
activities
CMS/NV
(CNV)
heterostructure.
CNV-1
exhibits
large
interface
contact
area
assures
excellent
interfacial
charge
transfer
ability.
Moreover,
outstanding
rates,
i.e.,
6.4
2.5
times
higher
than
that
pristine
NV,
respectively,
due
to
formation
an
S-scheme
heterojunction
between
NV
CMS.
Both
CMS
function
as
n-type
semiconductors
extend
photoresponse
visible
regions.
The
composite
achieves
1.67%
SCC
generation
7.36%
ACE
evolution.
activity
ascribed
anodic
photocurrent,
confinement
effect
CMS,
surface-active
sites,
delayed
recombination
excitons
supported
by
PL
EIS
measurements.
Further,
mechanism
was
authenticated
radical
scavenging
test
work
function,
evaluated
UPS
measurement.
Altogether,
this
study
exemplifies
concepts
designing
CNV
heterostructure,
which
operates
via
n–n-based
aims
enhance
production.
Язык: Английский
Light driven water oxidation on silica supported NiO–TiO2 heteronanocrystals yields hydrogen peroxide
Nanoscale Advances,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Light
illumination
of
aqueous
suspensions
supported
NiO–TiO
2
heteronanocrystals
led
to
water
oxidation
form
hydrogen
peroxide.
Язык: Английский
Sulfonamide-linked π-conjugated carbon nitride with enhanced intramolecular carrier generation and transfer for efficient photocatalysis
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116585 - 116585
Опубликована: Апрель 1, 2025
Язык: Английский
Evaluating H2 Production by Ultraviolet-Induced Water Splitting over (Cu or Ni)-TiO2 Nanoparticle Photocatalysts
ACS Applied Nano Materials,
Год журнала:
2025,
Номер
8(17), С. 8646 - 8662
Опубликована: Апрель 17, 2025
This
study
explores
the
surface
modification
of
TiO2
P25
with
nanosized
copper
(Cu)
or
nickel
(Ni)
for
photocatalytic
hydrogen
production
via
water
splitting.
Photocatalysts
1
5
wt
%
metal
loadings
were
synthesized
using
a
cost-effective
impregnation
method
and
tested
as-prepared
(XM/P25)
after
thermal
reduction
under
flow
(XM/P25-r).
Pre-calcination
was
omitted
to
simplify
synthesis.
The
characterization
photocataysts
revealed
key
physicochemical,
optical,
electronic
properties,
including
distribution
oxidation
states
species
their
interaction
TiO2.
TEM
EDS
showed
well-distributed
forming
nanometric
domains
on
surface.
XPS
Auger
spectroscopy
allowed
identification
different
species.
After
reduction,
Cu0
Ni0
phases
coexisted
oxidized
species,
enhancing
light
absorption
reducing
electron-hole
recombination,
confirmed
by
UV-vis
DRS
PL,
respectively.
Cu
seemed
exhibit
stronger
than
Ni
ones.
Photochemical
results
that
only
thermally
reduced
photocatalysts
led
immediate
production,
highlighting
need
zero-valent
an
efficient
generation.
5Ni/P25-r
5Cu/P25-r
outperformed
P25,
achieving
331
284
μmol
H2·gcat
-1·h-1,
respectively,
compared
261
-1·h-1
P25.
Although
in
terms
slightly
5Cu/P25-r,
latter
demonstrated
greater
stability,
possibly
due
during
tests.
As-prepared
can
be
activated
extended
UV
irradiation;
instance,
5Cu/P25
starts
producing
10
h
irradiation
as
result
situ
color
change
photocatalyst.
Язык: Английский
In-situ supramolecular self-assembly strategy to fabricate carbon-doped g-C3N4 microtubes: Efficient photocatalytic removal of antibiotics and bacterial inactivation
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116745 - 116745
Опубликована: Апрель 1, 2025
Язык: Английский
Breakthroughs in Photocatalytic Hydrogen Peroxide Production Through Advanced Mechanisms and Catalytic Systems
Advanced Sustainable Systems,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 22, 2025
Abstract
With
the
rapid
development
of
clean
energy,
photocatalytic
hydrogen
peroxide
(H₂O₂)
production
has
emerged
as
a
transformative
strategy
to
decarbonize
chemical
industry,
offering
sustainable
alternative
fossil
fuel‐dependent
anthraquinone
process.
Nevertheless,
in
pathway
H₂O₂
production,
there
are
still
series
negative
issues,
such
insufficient
supply
protons,
difficulty
separating
electron–hole
pair,
and
low
utilization
spatial
reactive
active
sites.
Therefore,
is
an
urgent
need
for
systematic
review
latest
advancements
further
enhance
production.
In
this
review,
three
systems
comprehensively
discussed,
oxygen
reduction
reaction
(ORR)
system
with
without
sacrificial
agents,
water
oxidation
(WOR)
accompanied
by
evolution
reaction,
dual
coupling
ORR
WOR.
By
bridging
molecular‐scale
mechanistic
insights
system‐level
innovation,
not
only
explains
fundamental
mechanisms
but
also
bridges
lab‐scale
breakthroughs
industrial
viability,
positioning
cornerstone
green
chemistry
renewable
energy
storage,
implications
environmental
remediation
carbon‐neutral
synthesis.
Язык: Английский
Triphase Photocatalysis: Beyond Conventional Diphase Photocatalytic Reactions
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 4, 2025
Abstract
Poor
light
absorption,
recombination
of
photogenerated
charges,
low
surface
area,
and
insufficient
catalytically
active
sites
are
the
most
studied
conventional
bottlenecks
photocatalysis
processes,
which
hinder
efficiency
photocatalytic
materials.
However,
there
other
less
factors
such
as
solubility
diffusion
reactants
in
reaction
system,
also
responsible
for
sluggish
kinetics
can
alter
selectivity.
The
diphase
reactions
at
liquid–solid
interface
suffer
from
poor
slow
transport
a
medium.
emerging
triphase
photocatalysis,
occurs
gas–liquid‐solid
liquid–liquid–solid
has
shown
potential
addressing
these
less‐studied
issues
achieved
better
performance
than
reactions.
This
review
article
mainly
focuses
on
understanding
mechanism
basic
difference
between
along
with
requirements
photocatalysis.
Several
examples
including
CO
2
reduction,
N
fixation,
H
O
production,
organic
pollutant
degradation
discussed
detail
this
review.
Finally,
summary
future
directions
field
provided
to
guide
researchers
design
remarkable
systems
excellent
efficiencies.
Язык: Английский