Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 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.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2024,
Volume and Issue:
9, P. 100698 - 100698
Published: March 19, 2024
In
this
study,
an
aqueous
ammonia
emulsion
and
a
zinc
sulfide/copper
(ZnS/Cu)
nanocomposite
were
blended
with
algae
biodiesel-diesel
blend,
the
optimum
levels
of
parameters
identified
for
enhanced
performance
reduced
emissions.
The
cultivated
concurrently
wastewater
treatment,
biodiesel's
properties
as
well
nanocomposite's
structural
surface
morphology
analyzed.
Response
methodology
was
employed
optimization,
confirmation
tests
conducted.
results
indicate
that
cultivation
effectively
removes
nutrients,
optimal
values
process
determined
to
be
10%
biodiesel,
14%
ammonia,
95
ppm
ZnS/Cu.
