Microplastics
(MPs)
are
regarded
as
a
pervasive
contaminant
that
poses
threats
to
the
environment
and
human
safety.
However,
high
energy
storage
potential
of
C–C
C–H
bonds
in
MPs
has
led
increased
attention
toward
technological
methods
for
upgrading
plastic
waste
high‐value‐added
fuels.
Aqueous
photocatalysis
emerged
promising
approach
due
its
solar‐driven
properties
ability
generate
various
radicals.
While
extensive
investigations
reviews
have
been
conducted
on
photocatalysts
resulting
products
within
this
system,
there
is
an
emerging
need
comprehensively
understand
entire
process
enhance
efficiency
selectivity
further.
In
review,
significant
advancements
overall
system
summarized,
including
reactants,
pretreatments,
photocatalysts,
additives,
reactors,
enable
efficient
selective
reactions
based
upon
principles
state‐of‐the‐art
photocatalytic
microplastic
upgrading.
Furthermore,
shortcomings
clarified
with
proposed
possible
breakthrough
points
each
research
direction.
Ultimately,
significance
developments
pretreatments
highlighted,
paving
way
future
possibilities.
ACS Catalysis,
Год журнала:
2024,
Номер
14(7), С. 4865 - 4926
Опубликована: Март 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.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Март 20, 2024
Abstract
Only
a
small
proportion
of
global
plastic
waste
is
recycled,
which
most
mechanically
recycled
into
lower
quality
materials.
The
alternative,
chemical
recycling,
enables
renewed
production
pristine
materials,
but
generally
comes
at
high
energy
cost,
particularly
for
processes
like
pyrolysis.
This
review
focuses
on
light-driven
approaches
chemically
recycling
and
upcycling
waste,
with
emphasis
reduced
consumption
selective
transformations
not
achievable
heat-driven
methods.
We
focus
challenging
to
recycle
backbone
structures
composed
mainly
C‒C
bonds,
lack
functional
groups
i.e.,
esters
or
amides,
that
facilitate
e.g.,
by
solvolysis.
discuss
the
use
light,
either
in
conjunction
heat
drive
depolymerization
monomers
via
photocatalysis
transform
polymers
valuable
molecules.
structural
prerequisites
these
are
outlined,
highlighting
their
advantages
as
well
limitations.
conclude
an
outlook,
addressing
key
challenges,
opportunities,
provide
guidelines
future
photocatalyst
(PC)
development.
Plastics
are
ubiquitous
and
indispensable
in
our
daily
life
because
of
their
low
cost,
portability,
durability,
processability.
However,
due
to
the
overuse,
short
service
life,
chemical
inert
character,
accumulated
discarded
plastics
pose
a
great
threat
sustainable
development
ecology
environment.
Photocatalysis
represents
highly
promising
technology
transforming
plastic
wastes
into
value‐added
products
via
green
mild
method.
In
this
perspective,
advantages
photocatalysis
discussed
compared
with
other
catalysis
technologies
including
thermal
catalysis,
electrocatalysis,
enzyme
catalysis.
Then
possible
photocatalytic
upcycling
path
is
clarified
under
different
experimental
conditions.
The
types
that
can
be
upcycled
by
photocatalysis,
integrating
modus
between
photocatalysts
as
well
modulation
product
selectivity
also
emphasized.
Finally,
challenges
insights
future
waste
fields
presented.
It
expected
timely
critical
review
provides
instructive
guidance
for
design
high
efficiency
toward
upcycling.
Chemical Science,
Год журнала:
2023,
Номер
15(5), С. 1611 - 1637
Опубликована: Дек. 27, 2023
This
review
critically
summarizes
the
recent
achievement
on
various
photocatalysts
for
plastic
upcycling.
A
range
of
key
factors
affecting
reaction
kinetics/thermodynamics
are
also
summarized.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(35)
Опубликована: Июнь 19, 2024
Plastic
pollution
is
worsening
the
living
conditions
on
Earth,
primarily
due
to
toxicity
and
stability
of
non-biodegradable
plastics
(NBPs).
Photocatalytic
cracking
NBPs
emerging
as
a
promising
way
cleave
inert
C-C
bonds
abstract
carbon
atoms
from
these
wastes
into
valuable
chemicals
fuels.
However,
controlling
processes
huge
challenge,
ascribed
complicated
reactions
various
NBPs.
Herein,
we
summarize
recent
advances
in
CO
