ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
89(11)
Published: July 11, 2024
Abstract
With
the
escalating
demand
and
utilization
of
plastics,
considerable
attention
has
been
given
to
controlling
plastic
pollution.
Among
these
methodologies,
photocatalytic
upcycling
emerged
as
a
promising
method
for
management
due
its
energy‐saving
eco‐friendly
properties.
In
past
several
years,
great
efforts
have
devoted
conversion
variety
commercial
types.
These
encouraging
endeavors
foreshadow
continued
progression
application
in
this
field.
review,
recent
advancements
plastics
are
reviewed.
The
fundamentals
principles
deconstruction
first
introduced.
Then,
we
summarize
works
on
reforming
different
types
plastic,
including
polyolefins,
polyesters,
other
Finally,
some
challenges
possible
solutions
provided
development
plastics.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 29, 2025
Photocatalytic
upcycling
of
waste
polyolefins
into
value-added
chemicals
provides
promise
in
plastic
management
and
resource
utilization.
Previous
works
demonstrate
that
can
be
converted
carboxylic
acids,
with
CO2
as
the
final
oxidation
product.
It
is
still
challenging
to
explore
more
transformation
products,
particularly
mild-oxidation
products
such
alcohols,
because
their
instability
compared
polymer
substrates,
which
are
prone
during
catalytic
reactions.
In
this
work,
we
propose
an
efficient
strategy
regulate
product
type
through
precise
control
radicals,
intermediates,
reaction
paths.
Taking
commonly
used
photocatalyst
C3N4
example,
its
major
acids
CO2.
When
MoS2
introduced
construct
a
Z-scheme
heterostructure,
gas
significantly
reduced
alcohols
appear
high
yield
1358.8
μmol
gcat-1
selectivity
up
80.3%.
This
primarily
attributed
presence
•OH
radicals
from
oxygen
reduction,
acting
key
role
alcohol
formation
while
simultaneously
suppressing
competing
pathways
•O2-
1O2,
thus
reducing
overoxidation
products.
The
β-scission
C-C
bonds
chains
generates
intermediate
alkyl
species,
followed
by
combination
produce
methanol,
energetically
favorable
for
MoS2/C3N4.
contrast,
species
couple
form
formic
acid,
C3N4.
work
new
approaches
controlling
types
offers
insights
involved
polyolefin
photorefinery.
The
extensive
accumulation
of
plastic
waste
has
given
rise
to
severe
environmental
pollution
issues.
Contemporary
conventional
recycling
methods,
such
as
incineration
and
landfilling,
contribute
significantly
pollutant
emissions
carbon
footprints,
against
the
principles
sustainable
development.
Leveraging
renewable
solar
energy
transform
plastics
into
high-value
chemicals
green
fuels
offers
a
more
promising
approach
managing
resources.
This
comprehensive
review
centers
on
recent
advancements
in
photoreforming,
categorizing
them
based
types
end
products.
Particular
emphasis
is
placed
evolving
research
landscape
surrounding
conversion
through
well
economic
considerations
for
large-scale
photoreforming
production.
analysis
conducted
here
reveals
key
pathways
emerging
trends
that
are
poised
shape
trajectory
enhanced
photoconversion,
ultimately
influencing
realization
carbon-neutral
future.
National Science Review,
Journal Year:
2025,
Volume and Issue:
12(4)
Published: Jan. 22, 2025
ABSTRACT
The
exploration
of
photocatalysts
(PCs)
for
efficient
singlet
oxygen
(1O2)-based
photocatalytic
oxidation
is
critical
and
challenging.
Herein,
a
new
series
donor-acceptor
metal-organic
frameworks
(D-A
MOFs)
are
constructed
through
the
engineering
D-A
system,
investigated
as
PCs
1O2
reaction.
By
regulating
intersystem
crossing
reversed
features
MOFs
could
reveal
highly
tunable
triplet-exciton
generation.
Via
synergy
enhanced
electron
transfer
properties
effective
energy
to
ground-state
O2,
optimized
MOF
(C1)
remarkable
activity
toward
generation
under
appropriate
irradiation,
which
fully
proven
by
detoxification
mustard
simulant
2-chloroethyl
ethyl
sulfide
into
sulfoxide
(conversion
selectivity
>99%
within
15
min).
Moreover,
application
C1
dihydroartemisinic
acid
artemisinin
results
in
highest
yield
(selectivity
88%
conversion
at
25°C)
among
all
reported
homo-
or
heterogeneous
PCs.
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
provides
a
comprehensive
analysis
of
hydrogen
production
through
plastic
waste
upcycling,
covering
both
established
and
emerging
technologies,
addressing
their
feasibility
commercialization
challenges.
