Recent advances in oxidative degradation of plastics
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(14), P. 7309 - 7327
Published: Jan. 1, 2024
Oxidative
degradation
is
a
powerful
method
to
degrade
plastics
into
oligomers
and
small
oxidized
products.
While
thermal
energy
has
been
conventionally
employed
as
an
external
stimulus,
recent
advances
in
photochemistry
have
enabled
photocatalytic
oxidative
of
polymers
under
mild
conditions.
This
tutorial
review
presents
overview
degradation,
from
its
earliest
examples
emerging
strategies.
briefly
discusses
the
motivation
development
with
focus
on
underlying
mechanisms.
Then,
we
will
examine
modern
studies
primarily
relevant
catalytic
degradation.
Lastly,
highlight
some
unique
using
unconventional
approaches
for
polymer
such
electrochemistry.
Language: Английский
Nitrogenative Degradation of Polystyrene Waste
Ganfei Zeng,
No information about this author
Yanming Su,
No information about this author
Jianwei Jiang
No information about this author
et al.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 8, 2025
Owing
to
massive
production
and
poor
end-of-life
management,
plastic
waste
pollution
has
become
one
of
the
most
pressing
environmental
crises.
In
response
mounting
crisis,
past
several
decades
have
witnessed
development
numerous
methods
technologies
for
recycling.
However,
current
recycling
often
produce
low-quality
or
low-value
products,
making
it
difficult
recover
operating
costs.
To
this
end,
we
report
a
novel
preoxygenation-induced
strategy
nitrogenative
degradation
real-life
polystyrene
plastics
into
high-value
aromatic
nitrogen
compounds
in
cost-effective
manner.
Thus,
expensive
highly
demanding
benzonitrile
as
well
benzamide
were
obtained
up
74%
overall
isolated
yield
from
by
using
CuBr
catalyst,
O2
oxidant,
CH3CN
source.
Detailed
mechanistic
investigations
indicate
that
hydroxyl
radicals
activation
play
role
selective
aerobic
process.
Furthermore,
multiple
reaction
pathways
contribute
formation
benzamide.
Language: Английский
Photo-induced degradation and upcycling of polystyrene promoted by acidic zeolites
Molecular Catalysis,
Journal Year:
2025,
Volume and Issue:
573, P. 114809 - 114809
Published: Jan. 5, 2025
Language: Английский
Visible-Light-Induced Photocatalytic Degradation of Polyvinyl Chloride under Normal Temperature and Pressure via Uranyl Photocatalyst
S. H. Tang,
No information about this author
Shuyun Zhang,
No information about this author
Yanxin Jiang
No information about this author
et al.
Industrial & Engineering Chemistry Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
Language: Английский
Photochemical upcycling of polymers via visible light-driven C−H bond activation
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
mini-review
highlights
the
scientific
breakthroughs
in
photochemical
upcycling
polymers
through
oxidative
degradation
and
post-polymerization
modification
via
visible
light-driven
C–H
bond
activation.
Language: Английский
Photocatalytic upcycling of plastics containing aliphatic C–C bonds into versatile chemicals
Wei Xin Chan,
No information about this author
Xin Ying Kong,
No information about this author
Shao Rong Choo
No information about this author
et al.
Chem Catalysis,
Journal Year:
2024,
Volume and Issue:
4(9), P. 101044 - 101044
Published: July 16, 2024
Language: Английский
Photooxidation of Polystyrene into High‐Value Chemicals
Shaokai Jiang,
No information about this author
Yunhan Chen,
No information about this author
Yahao Huang
No information about this author
et al.
European Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Plastics
play
a
crucial
role
in
the
survival
and
advancement
of
human
civilization.
However,
increasing
challenge
plastic
pollution
presents
significant
obstacles.
Disposal
methods
such
as
incineration
landfilling
result
substantial
resource
wastage
pose
potential
environmental
hazards.
The
slow
progress
recycling
reusing
waste
plastics
hinders
their
industrial
application
effective
response
to
crises.
Photocatalysis
offers
promising
solutions
for
future
recycling,
particularly
with
recent
increase
photocatalytic
degradation
polystyrene
(PS).
This
review
provides
comprehensive
overview
latest
advancements
photooxidation
PS
into
high‐value
chemicals.
Language: Английский