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.
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(22)
Опубликована: Апрель 21, 2022
Abstract
Plastic
waste
remains
a
global
challenge
due
to
the
massive
amounts
being
produced
without
satisfactory
treatment
technologies
for
recycling
and
upcycling.
Photocatalytic
processes
are
emerging
as
green
promising
approaches
upcycle
plastics
into
value‐added
products
under
mild
conditions
using
sunlight
energy
source.
In
this
review,
recent
advances
in
plastic
conversion
through
photocatalysis
have
been
comprehensively
summarized.
Special
emphasis
is
placed
on
photocatalytic
mechanism
selective
CC
CH
bond
transformations
of
access
fuels,
chemicals,
materials.
Finally,
challenges
perspectives
establishing
new
paradigm
toward
sustainable
circular
economy
also
put
forward.
ACS Catalysis,
Год журнала:
2023,
Номер
13(2), С. 1077 - 1088
Опубликована: Янв. 2, 2023
Tuning
the
interaction
between
loaded
metal
oxide
and
support
material
is
an
efficient
strategy
to
boost
catalytic
purification
of
ammonia
(NH3)
as
important
factor
in
formation
haze.
Herein,
CuO/CeO2
catalysts
based
on
ceria
shape
effect
(Ce-NR
Ce-NC)
are
prepared
tested
for
selective
oxidation
(NH3-SCO).
The
CuO
CeO2
with
different
shapes
crucial
regulate
interface
structure
content
oxygen
vacancies.
Cu/Ce-NR
possesses
more
Cu+-Ov-Ce3+
interfacial
sites
vacancies
achieves
a
higher
activity
(T100
=
240
°C)
lower
apparent
activation
energy
(37.18
kJ
mol–1)
NH3-SCO
compared
Cu/Ce-NC
270
°C,
86.57
mol–1).
In
situ
diffuse
reflectance
infrared
Fourier
transform
spectra
density
functional
theory
calculation
results
prove
that
site
main
adsorption
NH3.
further
reaction
generated
nitrate
NH3
rate-determining
step
over
catalysts,
it
revealed
much
easily
reacts
monodentate
species
formed
catalyst
than
bidentate
at
°C.
This
study
enriches
understanding
designing
by
modulate
their
thus
improve
NH3-SCO.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(14)
Опубликована: Янв. 17, 2023
Abstract
Electrocatalytic
5‐hydroxymethylfurfural
oxidation
reaction
(HMFOR)
can
replace
the
kinetically
slow
oxygen
evolution
to
yield
high
value‐added
chemicals.
In
this
study,
interface
engineering
is
constructed
by
modifying
CeO
2
nanoparticles
on
Co
3
O
4
nanowires
supported
nickel
foam
(NF).
The
construction
of
heterointerface
facilitate
structural
catalysts
and
charge
transfer,
as
a
result,
successfully
synthesized
NF@Co
/CeO
exhibits
higher
conversion
(98.0%),
2,5‐furandicarboxylic
acid
(FDCA)
(94.5%),
Faradaic
efficiency
(97.5%)
at
low
electrolysis
potential
1.40
V
RHE
compared
NF@CeO
.
Density‐functional
theory
calculations
indicate
that
establishment
effectively
regulate
intermediate
adsorption
promote
electron
which
greatly
reduces
activation
energy
dehydrogenation
step
in
5‐formyl‐2‐furancarboxylic
(FFCA),
promotes
further
FFCA
FDCA,
thereby
improving
performance
HMFOR.
HMFOR
behavior
effect
deeply
explored,
provides
guidance
for
future
design
with
efficient
performance.
ACS Catalysis,
Год журнала:
2023,
Номер
13(20), С. 13167 - 13180
Опубликована: Сен. 28, 2023
Covalent–organic
frameworks
(COFs),
as
promising
metal-free
porous
catalysts,
have
become
a
hot
research
topic
in
the
field
of
(photo)catalysis.
Herein,
series
β-ketoenamine
COFs
are
synthesized
using
different
amino
and
aldehyde
monomers,
these
exhibit
diverse
characteristics
terms
crystallinity,
chemical
structure,
microscopic
morphology,
optoelectronic
properties.
TpBD-(CH3)2
from
2,4,6-triformylphloroglucinol
o-tolidine
exhibits
an
extended
π-conjugated
structure
higher
crystallinity
well
more
suitable
redox
potential,
which
greatly
enhances
photocatalytic
activity
benzylamine
oxidation.
Besides,
increased
number
hydroxyl
groups
on
trialdehyde-based
monomer
contributes
to
ketoamines
TpTAB
skeleton,
is
favorable
for
photocatalysis.
Meanwhile,
can
rapidly
increase
their
own
temperature
through
internal
structural
evolution
under
light
irradiation,
thus
boosting
oxidative
coupling
amines
with
high
efficiency.
This
work
could
provide
some
guidance
rational
design
functional
advanced
organic
transformations.
