The
Ni/Co/Mn
ternary
catalysts
were
fabricated
through
one-step
calcination
process
using
the
cathode
material
(CM)
derived
from
spent
lithium-ion
batteries.
morphological
and
structural
properties
of
catalysts,
calcined
at
various
temperatures
(labeled
as
CM-450,
CM-550,
CM-650),
examined.
In
comparison
to
CM-450
CM-650
demonstrated
lowest
concentration
metal
leaching,
excellent
stability,
efficient
activation
performance
for
peroxymonosulfate
(PMS)
in
degradation
iopamidol
(IPM).
An
IPM
rate
8.0
mg/L
was
achieved
within
20
minutes,
reaching
100%.
Furthermore,
a
combination
free
radical
quenching
experiments,
electron
paramagnetic
resonance
(EPR),
electrochemical
characterization
analysis
indicated
that
both
pathways
(OH,
SO4•−,
O2–)
non-radical
(1O2,
transfer)
involved
CM-650/PMS
system.
presence
Ni2+,
Co2+,
Mn4+
on
surface
facilitated
PMS,
their
conversion
valence
states
exhibited
certain
synergistic
effect.
Additionally,
outstanding
cycling
with
an
exceeding
80%
after
three
cycles.
Liquid
chromatography-mass
spectrometry
(LC-MS)
density
functional
theory
(DFT)
calculations
employed
analyze
intermediates
reaction
pathways.
ECOSAR
some
posed
ecological
risks
magnitude.
summary,
presents
sustainable,
cost-effective,
environmentally
friendly
approach
converting
waste
materials
into
valuable,
high-performance
catalysts.
Journal of Agricultural and Food Chemistry,
Journal Year:
2024,
Volume and Issue:
72(37), P. 20241 - 20260
Published: Sept. 10, 2024
The
development
and
investigation
of
innovative
nanomaterials
stand
poised
to
advance
technological
progress
meet
the
contemporary
demand
for
efficient,
environmentally
friendly,
intelligent
products.
Hollow
nanostructures
(HNS),
characterized
by
their
hollow
architecture,
exhibit
diverse
properties
such
as
expansive
specific
surface
area,
low
density,
high
drug-carrying
capacity,
customizable
structures.
These
elaborated
structures,
encompass
nanospheres,
nanoboxes,
rings,
cubes,
nanowires,
have
wide-ranging
applications
in
biomedicine,
materials
chemistry,
food
industry,
environmental
science.
Herein,
HNS
cutting-edge
synthesis
methods,
including
solvothermal
liquid-interface
assembly
self-templating
methods
are
discussed
in-depth.
Meanwhile,
potential
biomedicine
packing,
biosensor,
drug
delivery
over
past
three
years
summarized,
together
with
a
prospective
view
future
research
directions
challenges.
This
review
will
offer
new
insights
into
designing
next
generation
applications.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 11, 2024
Abstract
In
this
work,
the
optimal
efficiency
and
mechanism
of
action
CoO
activated
sodium
percarbonate
(SPC)
for
degradation
Reactive
Blue
19
was
investigated.
The
three-factor
interaction
SPC
concentration,
dosage
initial
pH
effects
factors
such
as
anions
humic
acids
(HA)
were
results
show
that
CoO/SPC
system
(93.8%,
0.01015
min−
1)
efficiently
degraded
RB19
also
suitable
other
organic
dyes
(32.7%~100%)
antibiotics
(97.1%~100%).
During
activation
by
CoO,
carbonate
radical
(CO3•−),
hydroxyl
(•OH),
superoxide
(O2•−)
singlet
oxygen
(1O2)
are
involved
in
process,
among
which
CO3•−
(88.2%)
plays
an
indispensable
role,
proved
quenching
experiments
electron
paramagnetic
resonance
(EPR)
tests.
Co2+
dissolution
lower
than
150
µg/L,
meets
emission
standard
(1
ppm);
application
avoids
problem
acidification
wastewater,
final
product
is
green
color.
This
study
presents
a
novel
approach
to
treating
dye
wastewater
combining
transition
metal
oxides
with
percarbonate.
ChemCatChem,
Journal Year:
2024,
Volume and Issue:
16(21)
Published: July 13, 2024
Abstract
With
the
continuous
expansion
of
industrial
activities
worldwide,
emissions
nitrogen
oxides
(NO
x
)
pose
a
serious
threat
to
both
ecosystems
and
human
health.
Ammonia
selective
catalytic
reduction
NO
(NH
3
‐SCR)
technology
has
emerged
as
most
effective
means
reduce
emissions,
development
catalysts
is
crucial
for
successful
implementation
this
technology.
In
gas‐solid
multiphase
systems,
performance
limitations
conventional
can
be
effectively
overcome
by
meticulously
designing
nanostructures
achieve
improved
efficiency.
review,
unique
structural
features
core‐shell
structures,
layered
double
hydroxide
(LDHs),
hollow
nano
spheres
nanotubes,
along
with
their
preparation
processes,
are
systematically
examined,
beginning
effects
changes
on
performance.
Based
impact
modifications
efficiency
NH
‐SCR
reaction
anti‐poisoning
were
investigated.
Ultimately,
influence
catalyst
future
design
anticipated.
This
provides
robust
scientific
foundation
conception
higher
catalysts,
paving
way
technological
innovation
advancements
in
emission
practices.
It
was
of
great
significance
to
improve
the
performance
catalysts
in
peroxymonosulfate
(PMS)
activation
for
water
pollution
control.
Herein,
Cu2O-based
with
different
exposed
facets
were
synthesized
by
a
feasible
method,
and
later
employed
activating
PMS
conduct
degradation
tests
tetracycline
(TC).
With
increase
(100)
facet,
specific
surface
area
Cu2O
improved
interface
charge
transfer
resistance
reduced.
More
interestingly,
benefiting
from
exposure
electron-donating
ability
boosted,
adsorption
energy
over
also
reduced,
thereby
creating
favorable
conditions
activation.
As
guessed,
Cu2O-1
facet
can
quickly
activate
achieve
effective
TC,
highest
removal
efficiency
TC
be
up
97.56%
within
15
min.
Furthermore,
good
anti-interference
showed
satisfactory
reusability,
intermediates
low
toxic
or
nontoxic.
In
Cu2O-1/PMS
system,
various
reactive
oxygen
species
detected,
including
SO4•–,
OH•,
O2•–
1O2,
wherein
contribution
1O2
greatest.
short,
current
work
shared
some
valuable
insights
into
persulfate-based
advanced
oxidation
processes.
