Molecules,
Год журнала:
2025,
Номер
30(8), С. 1700 - 1700
Опубликована: Апрель 10, 2025
Long-time
exposure
to
volatile
organic
compounds
(VOCs)
in
the
atmosphere
can
have
negative
health
effects
on
humans
and
other
living
organisms.
In
order
purify
ambient
air,
these
VOCs
be
degraded
using
photocatalysis.
this
research,
commercially
available
TiO2
nanoparticles
were
immobilized
a
porous
poly(vinylidene
fluoride-co-hexa-fluoropropylene)
(PVDF)
polymer
matrix,
synthesized
phase
inversion
method.
The
most
used
solvent
for
PVDF
is
N-methyl-2-pyrrolidone
(NMP).
However,
known
harmful
environment,
there
need
replace
NMP
with
more
ecological
‘green’
solvent.
Here,
triethyl
phosphate
(TEP),
methyl-5-(dimethylamino)-2-methyl-5-oxopentanoate
(Rhodiasolv®
PolarClean)
propylene
carbonate
(PC)
dissolve
synthesis
of
photocatalytically
active
PVDF/TiO2
hybrid
layers
onto
aluminium
slides.
photocatalytic
degradation
under
UV
(365
nm)
gaseous
ethanol
an
argon/oxygen
(Ar/O2)
shows
that
solvents
are
suitable
replacements
NMP,
but
optimization
required
improve
performance
layers.
Apart
from
changing
PVDF,
photocatalysis
stability
has
been
determined,
as
well
repeatability
reaction,
prove
application.
IOP Conference Series Earth and Environmental Science,
Год журнала:
2025,
Номер
1445(1), С. 012076 - 012076
Опубликована: Янв. 1, 2025
Abstract
The
utilization
of
spices
has
become
one
the
special
features
Indonesian
cuisine.
combination
used
in
cuisine
diverse
community
makes
complexity
heritage.
Turmeric
rice
or
yellow
is
an
often
consumed
daily
festivities.
process
and
abundant
material
for
making
this
are
quite
complicated
time-consuming.
Therefore,
many
food
industries
try
to
create
ready-to-use
instant
seasonings
form
paste
powder.
From
a
commercial
perspective,
shelf
life
product
very
important.
could
be
influenced
by
number
ingredients
used.
In
research,
turmeric
seasoning
with
different
concentrations
was
determined
using
Accelerated
Shelf
Life
Testing
(ASLT)
method.
ASLT
conducted
at
temperatures
25
°C,
35
45
°C.
quality
parameters
(water
content
organoleptic)
were
regularly
checked
28
days.
results
showed
that
shortest
observed
sample
6%
(29.33
days)
longest
12%
(34.72
temperature
The
conversion
of
toluene
into
high-value
products
without
generating
undesired
CO2
remains
a
critical
challenge.
Selective
oxidation
under
visible
light
irradiation
has
emerged
as
promising
solution.
This
review
offers
comprehensive
interpretation
photocatalytic
transformations
in
heterogeneous
oxidation.
We
start
by
outlining
the
basic
mechanism
C–H
bond
activation
and
provide
an
overview
reactive
oxygen
species
(ROS)
within
systems.
Subsequently,
we
summary
strategies
that
have
been
developed
to
enhance
selectivity
system.
Following
this,
advanced
characterization
techniques
density
functional
theory
(DFT)
calculations
are
discussed
for
understanding
structure-performance
relationship
photocatalysts
mechanisms
underlying
processes.
Finally,
put
forward
detailed
discussion
current
challenges
potential
directions
future
research,
with
aim
offering
valuable
insights
this
emerging
field.
believe
will
not
only
spark
greater
creativity
optimizing
but
also
offer
designing
other
Catalysts,
Год журнала:
2025,
Номер
15(3), С. 234 - 234
Опубликована: Фев. 28, 2025
Volatile
organic
compounds
(VOCs)
from
petrochemical,
pharmaceutical,
and
other
industries
have
serious
damage
to
human
health
the
environment.
Catalytic
oxidation
is
a
promising
method
eliminate
air
pollution
due
its
high
efficiency,
wide
application
range,
environmental
friendliness.
However,
in
actual
industrial
environment,
composition
of
exhaust
gases
complex,
including
VOCs,
water
vapour,
chloride,
sulfide
so
on.
The
impurities
would
competitive
adsorption
with
reactants
or
react
active
sites,
leading
decline
catalytic
activity,
even
deactivation
catalysts.
Therefore,
this
review
summarises
recent
research
on
anti-poisoning
ability
catalysts
primarily
focusing
effect
sulfide.
mechanism
manifested
that
activation
are
significant
VOCs
degradation.
On
basis,
catalyst
poisoning
was
analysed,
inhibitory
reaction
elucidated.
According
status,
three
strategies
proposed,
building
bimetallic
system,
modifying
supports,
establishing
protected
coating.
This
work
provides
theoretical
foundation
reference
point
for
rational
construction
elimination.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
Volatile
aromatic
hydrocarbons
present
a
significant
threat
to
both
the
environment
and
human
health.
However,
due
low
reactivity
of
toxic
gases
containing
benzene
rings
insufficient
selectivity
existing
sensors,
real-time
monitoring
series
(BTEX)
remains
challenge.
The
development
catalytically
sensitive
synergistic
bilayer
sensors
offers
promising
strategy
overcome
this
A
Ru@CeO2
nanosheets
with
different
Ru
doping
levels
were
synthesized
by
using
simple
solvothermal
further
calcination
method.
Interestingly,
incorporation
effectively
modulates
morphology
Ce-BDC
from
nanorods
porous
nanosheets.
WO3/Ru@CeO2
sensor
is
constructed
WO3
nanofibers
as
lower
layer
upper
catalytic
layer.
At
operating
temperature
160
°C,
response
value
(Ra/Rg)
5
ppm
xylene
37.04,
which
obviously
better
than
that
nanofiber
sensor.
In
addition,
also
reacted
significantly
concentrations
xylene,
1
ppb.
Additionally,
combination
online
mass
spectrometry
density
functional
theory
was
employed
validate
enhanced
sensing
performance
arising
mechanism
between
materials.
Hence,
work
presents
new
material
for
detecting
ppb
level
BTEX
through
an
effective
structure
design
selection.
