Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 25, 2025
Accurately
sensing
the
spatial
distribution
of
temperature,
one
most
fundamental
parameters,
is
crucial
for
understanding
mechanism
physicochemical
process
in
confined
space.
However,
traditional
methods
temperature
measurement
often
show
a
very
limited
resolution
and
sensitivity.
Herein,
we
develop
surface-enhanced
Raman
spectroscopy
(SERS)
nanosensor
to
measure
within
hollow
carbon
nanospheres
(HCNSs)
study
light-promoted
Fenton-like
catalyzed
by
Fe
single-atom
anchored
on
HCNSs.
Based
temperature-dependent
SERS
spectra
phenyl
isocyanide
adsorbed
Au
nanoparticles,
gradient
nanocavity
surface
HCNSs,
induced
light-irradiation,
sensed
with
sensitivity
0.8
°C.
Furthermore,
combining
local
reaction
kinetics-temperature
relationship,
clarify
that
oxidation
phenol
peroxymonosulfate
occurs
at
thus
providing
sound
evidence
homogeneous
mechanism.
Besides
new
strategy
submicrometer
resolution,
this
work
also
shows
feasibility
through
locating
reactive
site.
Water Research,
Journal Year:
2024,
Volume and Issue:
268, P. 122621 - 122621
Published: Oct. 11, 2024
Conventional
heterogeneous
Fenton-like
systems
employing
different
peroxides
have
been
developed
for
water/wastewater
remediation.
However,
a
large
population
of
consumed
during
various
with
low
utilization
efficiency
and
associated
secondary
contamination
become
the
bottlenecks
their
actual
applications.
Recent
strategies
lowering
peroxide
consumptions
to
develop
economic
are
primarily
devoted
effective
radical
generation
subsequent
high-efficiency
through
catalysts/systems
engineering,
leveraging
emerging
nonradical
oxidation
pathways
higher
selectivity
longer
life
reactive
intermediate,
as
well
reactor
designs
promoting
mass
transfer
decomposition
improve
yield
radicals/nonradicals.
comparative
review
summarizing
mechanisms
these
has
not
yet
published.
In
this
review,
we
endeavor
showcase
designated
achieving
reduction
while
ensuring
high
catalytic
activity
from
perspective
above
strategic
mechanisms.
An
in-depth
understanding
aspects
will
help
elucidate
key
consumption.
Finally,
existing
problems
put
forward,
new
ideas
research
directions
consumption
proposed
promote
application
in
wastewater
purification.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 2, 2024
In
the
domain
of
heterogeneous
catalytic
activation
peroxymonosulfate
(PMS),
high-valent
metal-oxo
(HVMO)
species
are
widely
recognized
as
potent
oxidants
for
abatement
organic
pollutants.
However,
generation
selectivity
and
efficiency
HVMO
often
constrained
by
stringent
requirements
catalyst
adsorption
sites
electron
transfer
efficiency.
this
study,
a
single-atom
catalyst,
Cu
