Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 13, 2024
Abstract
The
rational
design
of
a
photocatalyst
and
its
microenvironmental
modulation
is
crucial
in
the
heterogeneous
photocatalysis
process,
yet
relevant
research
on
photocatalytic
biodiesel
synthesis
not
explored.
Herein,
based
prediction
density
functional
theory
(DFT)
calculations,
highly
efficient
ternary
biocompatible
montmorillonite
(Mt)
nanocomposites
S‐scheme
heterojunction
photocatalysts
(g‐C
3
N
4
‐TiO
2
@Mt,
CTM)
are
successfully
rationally
designed.
By
modulating
microenvironment
production,
CTM‐2
demonstrates
exceptional
catalytic
performance
stability,
achieving
record‐breaking
yield
98.5%.
Through
ex/in
situ
X‐ray
photoelectron
spectroscopy
(XPS),
absorption
near‐edge
(XANES),
theoretical
formation
revealed,
which
can
generate
an
interface
electric
field
(IEF)
that
provides
intrinsic
driving
force
for
carrier
migration
enhances
surface
positivity.
This
boosts
enrichment
effect
electronegative
oleic
acid
(OA)
carboxyl
molecules,
thus
greatly
enriching
substrate
concentration
improving
reaction
microenvironment.
Moreover,
fourier
transform
infrared
spectrometer
(FT‐IR)/Raman
together
with
electron
paramagnetic
resonance
(EPR)
further
confirm
key
intermediates
CH
O•
ester
carbonyl
(C═O),
DFT
calculations
provide
reference
pathway,
determined
to
be
capable
significantly
reducing
energy
barrier
rate‐determining
step.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(35), С. 23940 - 23947
Опубликована: Янв. 1, 2024
Pt-PMo@UiO-66
(0.32
wt%
Pt)
shows
the
highest
catalytic
activity
and
selectivity
to
one
–NO
2
hydrogenation
in
nitroarene
due
its
novel
structure
synergism.
Polymers,
Год журнала:
2024,
Номер
16(5), С. 689 - 689
Опубликована: Март 3, 2024
Polymeric
materials
degrade
as
they
react
with
environmental
conditions
such
temperature,
light,
and
humidity.
Electromagnetic
radiation
from
the
Sun’s
ultraviolet
rays
weakens
mechanical
properties
of
polymers,
causing
them
to
degrade.
This
study
examined
phenomenon
polymer
aging
due
exposure
radiation.
The
three
specific
objectives,
including
key
theories
explaining
(UV)
radiation’s
impact
on
decomposition,
underlying
testing
procedures
for
determining
polymeric
materials,
appraising
current
technical
methods
enhancing
UV
resistance
polymers.
utilized
a
literature
review
methodology
understand
effect
electromagnetic
Thus,
concluded
that
using
additives
absorbers
polymers
composites
can
elongate
lifespan
by
shielding
effects
findings
suggest
thermal
contribute
degradation
breaking
down
their
physical
chemical
bonds.
Thermal
oxidative
environments
accelerate
presence
temperatures
foster
quicker
plastics.
