Environmental Science & Technology,
Год журнала:
2023,
Номер
57(27), С. 10127 - 10134
Опубликована: Июнь 14, 2023
Herein,
we
developed
an
electrochemical
filtration
system
for
effective
and
selective
abatement
of
nitrogenous
organic
pollutants
via
peroxymonosulfate
(PMS)
activation.
Highly
conductive
porous
copper
nanowire
(CuNW)
networks
were
constructed
to
serve
simultaneously
as
catalyst,
electrode,
media.
In
one
demonstration
the
CuNW
network's
capability,
a
single
pass
through
filter
(τ
<
2
s)
degraded
94.8%
sulfamethoxazole
(SMX)
at
applied
potential
−0.4
V
vs
SHE.
The
exposed
{111}
crystal
plane
triggered
atomic
hydrogen
(H*)
generation
on
sites,
which
contributed
PMS
reduction.
Meanwhile,
with
involvement
SMX,
Cu–N
bond
was
formed
by
interactions
between
−NH2
group
SMX
Cu
sites
CuNW,
accompanied
redox
cycling
Cu2+/Cu+,
facilitated
potential.
different
charges
active
made
it
easier
withdraw
electrons
promote
oxidation.
Theoretical
calculations
experimental
results
combined
suggest
mechanism
pollution
networks.
showed
that
efficacy
degradation
wide
array
robust
across
broad
range
solution
pH
complex
aqueous
matrices.
flow-through
operation
outperformed
conventional
batch
electrochemistry
due
convection-enhanced
mass
transport.
This
study
provides
new
strategy
environmental
remediation
integrating
state-of-the-art
material
science,
advanced
oxidation
processes,
microfiltration
technology.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(40)
Опубликована: Сен. 15, 2023
Abstract
The
technology
of
steam
reforming
bioethanol
has
drawn
great
attention
to
green
hydrogen
production.
However,
catalyst
deactivation
always
been
a
significant
obstacle
its
applications.
Here,
series
y
Ni/Mo
2
TiC
T
x
(
Ni/MTC)
materials
are
tailored
as
robust
catalysts
for
highly
efficient
long‐term
ethanol
reforming.
results
reveal
that
utilization
efficiency
up
95.6%
and
almost
total
conversion
can
be
achieved
at
550
°C
using
10Ni/MTC‐72h
catalyst.
Moreover,
this
remarkable
stability
without
obvious
after
100
h
reforming,
which
attributed
the
formation
Ni─Mo
alloy
strong
interaction
Ni‐Mo
m
‐Mo
2‐m
structure.
FTIR‐MS
studies
demonstrate
superiority
reinforcing
low‐temperature
activation,
verified
by
faster
acetate
species
than
with
Ni/Al
O
3
.
adsorption
energies
on
surface
Ni
(−1.07
eV)
Ni/MTC
(−1.46
compared
density
functional
theory
calculations
show
activating
during
This
study
provides
new
implications
stabilized
construction,
is
expected
substantially
promote
development
application
bioethanol‐to‐hydrogen
production
technologies.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(50)
Опубликована: Авг. 27, 2023
Abstract
Single‐atom
catalysts
(SACs)
are
desirable
in
environmental
catalysis
due
to
friendliness,
structural
stability,
and
maximum
utilization
of
active
metal
sites.
Extensive
research
has
compared
the
catalytic
performance
between
SACs
with
different
single‐atom
metals.
However,
their
is
also
highly
dependent
on
supports,
which
play
an
important
role
modulating
local
coordination
environment
SACs.
Unfortunately,
a
comprehensive
review
that
systematically
discusses
relationship
supports
environment,
as
well
combined
effects
scare.
In
this
review,
three
widely
investigated
applications
including
advanced
oxidation
processes
(AOPs),
mainly
Fenton
Fenton‐like
reactions,
nitrate
reduction
reaction
(NO
3
RR)
focused.
By
correlating
characterization
results,
performances,
computational
environments
reactivity
examined
detail,
from
origin
pathways
AOPs
NO
RR
attempted
reveal.
Finally
look
forward
for
potential
opportunities
challenges
on‐demand
applications,
provided.
