ACS ES&T Engineering,
Journal Year:
2022,
Volume and Issue:
2(4), P. 527 - 546
Published: March 8, 2022
Heterogeneous
photocatalytic
persulfate
(PS)
activation
technologies
are
being
intensively
studied
for
water
treatment
due
to
their
friendly
environmental
benefits
and
photosynergistic
effect
in
comparison
with
traditional
PS
systems.
Previous
reviews
have
summarized
diverse
methods
the
role
of
light
systems,
but
it
is
still
urgent
provide
a
comprehensive
review
on
deep
understanding
rational
design
heterogeneous
PS-based
advanced
oxidation
processes
(AOPs).
This
intends
thoroughly
address
in-depth
fundamentals
mechanisms
PS-AOPs.
Challenges
improvement
strategies
PS-AOPs
also
critically
discussed.
On
basis
detailed
survey
published
studies,
PS-AOPs,
including
Fe-based,
TiO2-based,
other
metal
based,
bimetallic,
metal-free
carefully
clarified.
Finally,
engineering
implications
prospects
enumerated
developing
efficient
environmentally
treatment.
It
expected
that
this
will
motivate
researchers
construct
novel
promising
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(12), P. 8765 - 8775
Published: May 12, 2022
As
an
efficient
active
oxidant
for
the
selective
degradation
of
pollutants
in
wastewater,
high-valent
copper
species
Cu(III)
with
persulfate
activation
has
attracted
substantial
attention
some
Cu-based
catalysts.
However,
systematic
study
a
catalyst
structure
and
mechanism
about
peroxydisulfate
(PDS)
is
challenging
owing
to
coexistence
multiple
Cu
structural
symmetry
PDS.
Herein,
we
anchored
atom
two
pyridinic
N
atoms
synthesize
single-atom
(CuSA-NC).
Experimental
characterizations
theoretical
calculations
complemented
each
other
well
because
uniform
atomic
sites.
The
was
identified
as
site,
unsaturated
Cu-N2
configuration
more
conductive
PDS
than
saturated
Cu-N4
configuration.
Benefiting
from
generation
Cu(III),
CuSA-NC
exhibited
obvious
anti-interference
performance
pollutant
complex
matrix.
superior
catalytic
activity
compared
that
reported
catalysts
good
durability
continuous-flow
experiment
further
revealed
potential
practical
applications.
This
work
strongly
deepens
understanding
sites
under
develops
approach
actual
water
purification.
