Heliyon,
Год журнала:
2024,
Номер
10(21), С. e39147 - e39147
Опубликована: Окт. 9, 2024
To
improve
the
oxidation
pretreatment
efficiency
of
wastewater
from
organic
peroxides,
a
catalyst
(CeO2-C
catalyst)
was
developed
using
calcination
method
with
ceramic
particles
as
support.
The
crystalline
structure
and
elemental
composition
CeO2-C
were
characterized
by
Scanning
Electron
Microscope
(SEM),
Energy
Dispersive
Spectrometer
(EDS),
X-ray
diffraction
(XRD).
This
study
explored
effects
CeO2
mass
ratio,
temperature,
time
on
performance
catalyst.
optimal
preparation
conditions
established
through
orthogonal
experiments.
Additionally,
synergistic
effect
ozone
treatment
peroxide
investigated.
results
indicated
that
parameters
ratio
4%,
temperature
500
°C,
duration
5
hours,
respectively.
After
five
cycles
reuse,
catalytic
activity
slightly
decreased
but
remained
relatively
stable.
With
an
flow
rate
6L/min,
CeO2-C/ozone
process
achieved
Chemical
Oxygen
Demand
(COD)
removal
28.11%
in
wastewater,
B/C
(the
BOD
concentration
to
COD
concentration)of
improved
0.093
0.152.
proved
effective
for
preparing
catalyst,
which
demonstrated
significant
held
promising
application
prospects
wastewater.
Chemical Science,
Год журнала:
2023,
Номер
15(1), С. 204 - 212
Опубликована: Ноя. 27, 2023
Herein,
a
new
type
of
hollow
carbon
nanospheres
(HCNs)
is
designed
and
synthesized
by
pyrolysis
biomass
dealkali
lignin,
as
an
efficient
nanocatalyst
for
the
elimination
antibiotics
in
complex
water
matrices.
Abstract
Waste
activated
sludge
(WAS)
is
attracting
attention
for
its
energy
and
resource
potential.
Anaerobic
digestion
(AD)
can
be
used
to
efficiently
recover
resources
stabilize
pollutants
in
WAS,
with
biochar
emerging
as
an
ideal
additive
boost
this
process.
However,
the
low
abundance
of
surface
functional
groups
small
pore
structure
raw
may
limit
performance
AD
WAS.
These
limitations
overcome
by
using
biochar.
In
review,
preparation
modification
methods
role
WAS
are
systematically
summarized
discussed.
Notably,
electron
transfer,
buffering
effects,
microbial
immobilization,
alleviation
inhibitory
modulation
analyzed.
Additionally,
impacts
on
digestate
utilization,
pollutant
removal,
carbon
fixation
Special
given
ability
promote
circular
economy
neutrality.
Finally,
future
perspectives
use
presented.
The
aim
review
provide
insights
into
application
from
perspective
improvement,
economy.
Graphical
Separations,
Год журнала:
2025,
Номер
12(2), С. 20 - 20
Опубликована: Янв. 22, 2025
For
the
past
few
years,
biochar
has
emerged
as
a
promising
material
for
removal
of
various
pollutants
from
aquatic
environments,
owing
to
its
advantageous
characteristics,
such
tunable
porosity,
abundant
surface
functional
groups,
ease
modification,
and
relative
stability.
Co-doping
with
heteroatoms
significantly
enhances
properties
by
introducing
additional
groups
defects,
which
facilitate
adsorption
catalytic
degradation
pollutants.
This
review
conducts
bibliometric
analyses
relevant
publications,
synthesis
methodologies,
applications,
reaction
mechanisms
co-doped
an
adsorbent
catalyst
contaminant
removal,
due
synergistic
effects
doping
elements
features.
Furthermore,
co-doping
strategies
associated
including
specific
area
(SSA),
defects
are
analyzed.
Finally,
future
research
directions
proposed
improve
efficiency
in
water
soil
remediation
applications.
In
summary,
this
advances
frontier
on
heteroatom-based
offers
new
insights
into
effective
removal.
