Environmental Science and Ecotechnology,
Journal Year:
2023,
Volume and Issue:
18, P. 100329 - 100329
Published: Oct. 2, 2023
Advanced
oxidation
processes
(AOPs)
utilizing
persulfate
(PS)
offer
great
potential
for
wastewater
treatment.
Yet,
the
dependency
on
energy
and
chemical-intensive
activation
techniques,
such
as
ultraviolet
radiation
transition
metal
ions,
constrains
their
widespread
adoption.
Recognizing
this
limitation,
researchers
are
turning
towards
piezoelectric
effect-a
novel,
energy-efficient
method
PS
that
capitalizes
innate
characteristics
of
materials.
Intriguingly,
taps
into
weak
renewable
mechanical
forces
omnipresent
in
nature,
ranging
from
wind,
tides,
water
flow,
sound,
atmospheric
forces.
In
perspective,
we
delve
burgeoning
realm
piezoelectric/PS-AOPs,
elucidating
its
fundamental
principles,
refinement
materials,
force
sources,
pertinent
application
contexts.
This
emerging
technology
harbors
significant
a
pivotal
element
pretreatment
may
spearhead
innovations
future
pollution
control
engineering.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(44)
Published: Aug. 1, 2024
Abstract
For
piezoelectric
catalysis,
the
catalytic
mechanism
is
a
topic
of
great
controversy,
with
debates
centered
around
whether
it
belongs
to
energy
band
theory
or
screening
charge
effect
which
are
similar
mechanisms
photocatalysis
and
electrochemical
respectively.
Due
formation
different
intermediate
active‐species
during
two‐electron
oxygen
reduction
reaction
(ORR)
via
electro‐
photo‐catalysis,
key
solving
this
problem
precisely
monitoring
active
species
involved
in
ORR
electro‐,
photo‐,
piezo‐catalysis
under
identical
condition.
Here,
semiconductor
material,
BiOBr
abundant
vacancies
(BOB‐OV)
was
found
remarkable
activity
H
2
O
production
by
all
three
methods.
By
employing
situ
electron
paramagnetic
resonance
(EPR)
spectroscopy,
evolution
pathway
through
over
BOB‐OV
monitored,
showed
that
observed
photo‐catalytic
process.
This
finding
represents
solid
evidence
supporting
notion
piezo‐catalytic
more
inclined
towards
photo‐catalysis
rather
than
electro‐catalysis.
Significantly,
exploratory
conclusion
provides
insight
deepen
our
understanding
piezo‐catalysis.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(44)
Published: Aug. 1, 2024
Abstract
For
piezoelectric
catalysis,
the
catalytic
mechanism
is
a
topic
of
great
controversy,
with
debates
centered
around
whether
it
belongs
to
energy
band
theory
or
screening
charge
effect
which
are
similar
mechanisms
photocatalysis
and
electrochemical
respectively.
Due
formation
different
intermediate
active‐species
during
two‐electron
oxygen
reduction
reaction
(ORR)
via
electro‐
photo‐catalysis,
key
solving
this
problem
precisely
monitoring
active
species
involved
in
ORR
electro‐,
photo‐,
piezo‐catalysis
under
identical
condition.
Here,
semiconductor
material,
BiOBr
abundant
vacancies
(BOB‐OV)
was
found
remarkable
activity
H
2
O
production
by
all
three
methods.
By
employing
situ
electron
paramagnetic
resonance
(EPR)
spectroscopy,
evolution
pathway
through
over
BOB‐OV
monitored,
showed
that
observed
photo‐catalytic
process.
This
finding
represents
solid
evidence
supporting
notion
piezo‐catalytic
more
inclined
towards
photo‐catalysis
rather
than
electro‐catalysis.
Significantly,
exploratory
conclusion
provides
insight
deepen
our
understanding
piezo‐catalysis.
Nanotechnology,
Journal Year:
2024,
Volume and Issue:
35(24), P. 245703 - 245703
Published: Feb. 22, 2024
The
recombination
of
photoexcited
electron-hole
pairs
greatly
limits
the
degradation
performance
photocatalysts.
Ultrasonic
cavitation
and
internal
electric
field
induced
by
piezoelectric
effect
are
helpful
for
separation
efficiency.
activated
foam
carbon
(AFC)
owing
to
its
high
surface
area
is
often
used
as
substrate
grow
catalysts
provide
more
reactive
active
sites.
In
this
work,
CuO@BaTiO
