Advanced Energy and Sustainability Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 23, 2024
Replacing
fossil
resources
as
the
primary
source
of
carbon‐based
chemicals
by
alternative
feedstocks,
while
implementing
more
sustainable
production
routes,
has
become
imperative
for
environmental
and
resource
sustainability.
In
this
context,
lignin,
often
treated
a
biomass
waste,
emerges
an
appealing
candidate,
considering
principles
circular
economy.
For
pursuit,
depolymerization
methods
offer
potential
strategies
to
harness
lignin
produce
valuable
organic
chemicals,
electrocatalysis
processes
stand
out
especially
in
context
sustainability,
they
can
be
powered
electricity
from
renewable
sources.
This
minireview
article
explores
pivotal
role
various
electrocatalysts
depolymerization,
investigating
both
oxidative
reductive
pathways.
Emphasizing
recent
advancements,
review
delves
into
diverse
nature
their
influence
on
valorization.
Highlighting
current
trends,
discussion
encompasses
catalytic
mechanisms
selectivity
electrochemical
employed
breakdown.
Additionally,
some
insights
emerging
technologies
are
also
offered,
emphasizing
need
efficient
strategies.
By
providing
overview
field,
aims
guide
future
research
endeavors
toward
innovative
electrocatalytic
approaches
paving
way
biorefinery
processes.
Journal of Hazardous Materials,
Год журнала:
2024,
Номер
479, С. 135581 - 135581
Опубликована: Авг. 24, 2024
Heavy
metals-laden
industrial
wastewater
represents
both
a
threat
to
ecosystems
and
human
health
and,
in
some
instances,
potential
source
of
valuable
metals
however
the
presence
organic
ligands
that
bind
heavy
metal
complexes
(HMCs)
renders
removal
(and,
where
appropriate,
recovery)
difficult.
Electrochemical-based
oxidation
reduction
processes
represent
potentially
promising
means
degrading
reducing
their
ability
retain
solution.
In
this
state-of-the-art
review,
we
provide
comprehensive
overview
current
status
on
use
electrochemical
redox
technologies
for
ligand
degradation
subsequent
recovery
from
wastewaters.
The
principles
mechanism
common
by
various
types
are
discussed
review
consideration
given
recent
progress
electrode
materials
synthesis,
cell
architecture,
operation
systems.
Furthermore,
highlight
challenges
application
treatment
HMC-containing
wastewaters
including
(i)
limited
understanding
chemical
composition
wastewaters,
(ii)
constrained
mass
transfer
process
affecting
direct/indirect
electron
transfer,
(iii)
absence
approaches
convert
recovered
into
high-value-added
products,
(iv)
restricted
semi-or
full-industrial-scale
these
technologies.
Potential
strategies
improvement
accordingly
provided
guide
efforts
addressing
future
research.
Catalysts,
Год журнала:
2025,
Номер
15(1), С. 34 - 34
Опубликована: Янв. 3, 2025
In
this
study,
an
electrochemical
approach
was
utilized
to
degrade
the
anionic
Chlorazol
Yellow
(CY)
dye
in
aqueous
solution
using
a
lead
oxide-modified
stainless
steel
electrode
(denoted
as
PbO2-SS).
The
fabrication
of
involved
scanning
clean
SS)
plate
within
range
−1.0
V
+1.0
against
Ag/AgCl
(saturated
KCl)
for
three
cycles
at
scan
rate
0.1
s−1
M
Pb(NO3)2
solution.
Analysis
via
X-ray
photoelectron
spectroscopy
(XPS)
confirmed
successful
fabrication,
with
Pb4+
being
predominant
species
observed
XPS
spectra.
Additionally,
electron
microscopy
(SEM)
imaging
fabricated
revealed
deposition
PbO2
flower-like,
nanostructured
form
on
SS
surface.
To
provide
cost-effective
method
treatment,
PbO2-SS
anode
oxidize
chloride
ions
(Cl−)
into
hypochlorite
(ClO−),
which
subsequently
oxidized
CY
molecules.
Optimization
parameters
such
voltage,
supporting
electrolytes,
and
pH
conducted
determine
most
effective
degradation
conditions.
achieved
efficiency
approximately
97%
over
wide
20
min,
indicating
its
applicability
across
various
Consequently,
technique
presents
promising
treatment
industrial
wastewater.
