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.
Polymer Chemistry,
Journal Year:
2022,
Volume and Issue:
14(3), P. 253 - 258
Published: Dec. 20, 2022
Retrieving
the
starting
monomers
from
polymers
synthesized
by
reversible
deactivation
radical
polymerization
has
recently
emerged
as
an
efficient
way
to
increase
recyclability
of
such
materials
and
potentially
enable
their
industrial
implementation.
To
date,
most
methods
have
primarily
focused
on
utilizing
high
temperatures
(typically
120
°C
180
°C)
trigger
depolymerization
reaction.
In
this
work,
we
show
that,
in
presence
Eosin
Y
under
light
irradiation,
a
much
faster
made
addition-fragmentation
chain-transfer
(RAFT)
can
be
triggered
even
at
lower
temperature
(
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(3), P. 1678 - 1685
Published: Jan. 13, 2023
We
report
a
photoinduced
iron/copper
dual-catalytic
strategy
for
the
radical
decarboxylation
functionalization
of
aliphatic
carboxylic
acids.
The
ligand-to-iron
charge
transfer
process
under
light
was
initially
occurred
to
generate
an
unstabilized
alkyl
radical,
and
copper
catalyst
delivered
enabled
subsequent
coupling
reactions
form
C–N
or
C–C
bonds.
By
merging
iron-catalyzed
with
catalysis,
this
system
allows
smooth
conversion
wide
range
acids
amination,
decarboxylative
dehydrogenation,
alkylation
efficiently.
A
variety
complex
drug
natural
molecules
is
applicable,
suggesting
that
would
facilitate
rapid
compound
library
synthesis
benefit
discovery
pharmaceutical
agents.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(18), P. 6949 - 6970
Published: Jan. 1, 2023
This
review
summarizes
the
emerging
advanced
technologies
including
bio-,
photo-,
electro-,
and
low-temperature
thermocatalysis
for
recycling
upgrading
of
waste
plastics
under
mild
conditions.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(6), P. 2503 - 2527
Published: Jan. 1, 2023
Plastics
and
microplastics
are
major
environmental
pollutants
due
to
wide
applications
difficult
degradations.
Herein,
we
summarize
several
studies
on
degradations
of
(micro)plastics
value-added
products
intermediates
via
photocatalysis.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(29)
Published: April 13, 2023
Abstract
Shaping
a
sustainable
future
is
closely
tied
to
the
development
of
advanced
plastic
recycling
technologies.
As
global
rates
remain
low,
lion's
share
post‐consumer
plastics
either
incinerated
or
disposed
in
landfills.
This
unbalanced
waste
management
not
only
poses
severe
environmental
risks,
but
also
entails
an
irrevocable
loss
chemical
resources
that
are
embedded
synthetic
polymers.
To
give
new
life,
series
photocatalytic
methods
has
recently
been
reported
convert
polymers
directly
into
value‐added
organic
molecules.
These
approaches
operate
at
ambient
temperature,
show
high
reactivity/selectivity,
and
provide
alternative
reaction
pathways
as
compared
thermal
depolymerizations.
Minireview
highlights
scientific
breakthroughs
upcycling
through
state‐of‐the‐art
photocatalysis
under
environmentally
benign
conditions.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(7), P. 4865 - 4926
Published: March 18, 2024
Rapid
industrialization
and
development
have
led
to
a
tremendous
increase
in
the
use
of
various
types
plastic
commodities
daily
life.
For
past
several
years,
pollution
has
become
global
issue,
posing
serious
threat
mankind.
The
primary
issue
with
increasing
is
lack
proper
management
which
created
huge
havoc
environment.
From
initial
phase
waste
management,
been
discarded,
recycled,
downcycled,
or
dumped
into
landfills
large
proportion,
causing
extreme
damage
ecosystem.
Conventionally,
treated
via
thermal
processes
such
as
pyrolysis
incineration
plants
require
amount
capital
and,
therefore,
harms
aim
circular
economy.
Chemical
upcycling
gaining
attention
high-potential
catalytic
strategy
convert
plastics,
polyethylene
terephthalate,
polyethylene,
polystyrene,
etc.
fuels,
functionalized
polymers,
other
value-added
chemicals
having
direct
impact
on
affordability
viability.
In
this
review,
we
focused
photocatalysis,
electrocatalysis,
photoelectrocatalysis
effective
efficient
technologies.
These
approaches
can
lower
dependence
nonrenewable
resources
are
more
environmentally
friendly
contrast
conventional
approaches.
This
review
elaborately
discusses
pros
cons
provides
detailed
overview
potential
renewable
energy-driven
for
conversion
wastes
valuable
fuels
commodity
chemicals,
along
challenges
future
directions
emerging
approach
treatment.
