Catalysis Communications,
Journal Year:
2023,
Volume and Issue:
180, P. 106702 - 106702
Published: May 27, 2023
Water
pollution
has
become
more
severe
due
to
improper
discharge
of
pollutants
in
the
natural
water
systems.
Catalytic
activation
peracetic
acid
(PAA)
emerged
as
a
promising
treatment
method
decontaminate
organic
pollutants.
This
review
aims
elucidate
latest
advances
catalytic
PAA
covering
brief
fundamental
process,
catalyst
design
and
influence
key
parameters
on
performance
system,
such
pH,
loading,
dosage,
interfering
species.
Finally,
prospects
materials
design,
operational
issues
environmental
implications
are
proposed
advance
this
research
field
higher
level.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(19), P. 8554 - 8564
Published: April 18, 2024
Peracetic
acid
(PAA)
oxidation
catalyzed
by
metal-free
carbons
is
promising
for
advanced
water
decontamination.
Nevertheless,
developing
reaction-oriented
and
high-performance
carbocatalysts
has
been
limited
the
ambiguous
understanding
of
intrinsic
relationship
between
carbon
chemical/molecular
structure
PAA
transformation
behavior.
Herein,
we
comprehensively
investigated
activation
using
a
family
well-defined
sp2/sp3
hybrids
from
annealed
nanodiamonds
(ANDs).
The
activity
ANDs
displays
volcano-type
trend,
with
respect
to
ratio.
Intriguingly,
sp3-C-enriched
AND
exhibits
best
catalytic
phenolic
oxidation,
which
different
persulfate
chemistry
in
sp2
network
normally
outperforms
sp3
hybridization.
At
electron-rich
sp2-C
site,
undergoes
reduction
reaction
generate
reactive
complex
(AND-PAA*)
induces
an
electron-transfer
pathway.
sp3-C
site
adjacent
C═O,
oxidized
surface-confined
OH*
O*
successively,
ultimately
evolves
into
singlet
oxygen
(1O2)
as
primary
species.
Benefiting
dual
nonradical
regimes
on
hybrids,
mediates
sustainable
redox
recycle
continuously
species
attack
contaminants,
meanwhile
maintaining
structural/chemical
integrity
exceptional
reusability
cyclic
runs.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(23)
Published: May 28, 2024
Peracetic
acid
(PAA)
is
emerging
as
a
versatile
agent
for
generating
long-lived
and
selectively
oxidative
organic
radicals
(R–O
•
).
Currently,
the
conventional
transition
metal–based
activation
strategies
still
suffer
from
metal
ion
leaching,
undesirable
by-products
formation,
uncontrolled
reactive
species
production.
To
address
these
challenges,
we
present
method
employing
BiOI
with
unique
electron
structure
PAA
activator,
thereby
predominantly
CH
3
C(O)O
radicals.
The
specificity
of
generation
ensured
superior
performance
BiOI/PAA
system
across
wide
pH
range
(2.0
to
11.0),
even
in
presence
complex
interfering
substances
such
humic
acids,
chloride
ions,
bicarbonate
real-world
water
matrices.
Unlike
catalytic
methods,
degrades
sulfonamides
without
producing
any
toxic
by-products.
Our
findings
demonstrate
advantages
decontamination
pave
way
development
eco-friendly
decontaminations
based
on
peroxides.
