Advanced Sustainable Systems,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 8, 2024
Abstract
Sulfate
radicals
based
advanced
oxidation
processes
(SR‐AOPs)
have
gained
attention
recently
due
to
their
high
mineralization
capability
in
environmental
remediation.
The
persulfate
(PS)
activation
activity
of
cobalt‐based
semiconductors
has
epitomized
them
as
preferred
catalysts
for
SR‐AOPs
but
shortcomings
such
leaching,
and
loss
catalytic
active
sites
limit
applicability.
Herein,
two
different
strategies
are
employed
minimize
leaching
improve
charge
transportation
separation
efficient
PS
under
visible
light
irradiation
using
LDH/CaCO
3
/PS
Ba
2
CoMnO
5
AOP
systems
synthesized
by
solid
state
method.
achieved
17.9%
higher
reaction
rate
than
degradation
amoxicillin
(AMX)
with
TOC
efficacy.
Despite
SO
4
•−
OH
•
existence
involvement
both
systems,
the
pathways
mapped
from
QTOF‐HPLC‐MS
data
demonstrated
formation
during
AMX
mineralization.
This
work
demonstrates
novel
fabrication
brownmillerite
double
layered
perovskite
insulator
supported
LDH
pollution
The Journal of Physical Chemistry Letters,
Год журнала:
2023,
Номер
14(4), С. 1029 - 1045
Опубликована: Янв. 24, 2023
In
the
past
seven
years,
dual
Z-scheme
heterojunctions
evolved
as
favorable
approaches
for
enhanced
charge
carrier
separation
through
direct
or
indirect
transfer
transportation
mechanisms.
The
dynamics
of
is
major
strategy
understanding
their
photoactivity
and
stability
formation
distinctive
redox
centers.
currently
recognized
principles
successful
fabrication
classification
in
different
energy
pollution
remediation
strategies
discussed,
a
universal
transfer-type-based
Z-schemes
that
can
be
adopted
S-scheme
proposed.
Methods
used
determining
proof
existence
are
outlined.
Most
importantly,
new
macroscopic
N-scheme
triple
also
heterostructures
composed
four
semiconductors
proposed
generating
both
oxidatively
reductively
empowered
systems.
systems
expected
to
possess
properties
enable
them
harvest
solar
light
drive
important
chemical
reactions
applications.
Chemical Engineering Journal,
Год журнала:
2023,
Номер
480, С. 148250 - 148250
Опубликована: Дек. 22, 2023
The
development
of
low-cost
photostable
heterostructures
with
robust
interfacial
contact
is
critical
for
competent
photoactivity
and
practical
applications.
solid-state
approach
was
successfully
employed
fabrication
novel
stacked
oval-shaped
CoMn-LDH/C-MgO
composites
Mn-O-Mg
bridges
efficient
charge
separation
induced
by
S-scheme
transfer
degradation
amoxicillin
(AMX).
persulfate
(PS)
activation
mechanism
confirmed
Raman
analysis
using
bond
length
relationship
to
peak
shifts.
PS
rate
1.8
times
CoMn-LDH/PS
the
heterojunction
a
99.97
±
0.16
%
removal
efficiency
after
60
min
irradiation
at
pH
5.2.
photocatalytic
ozonation
increased
AMX
mineralization
up
8
compared
ozonation.
Antimicrobial
studies
bacterial
growth
inhibition
by-products
had
reduced
AMX.
This
work
demonstrated
an
as
visible
light
heterogeneous
photocatalyst
pharmaceuticals.
Journal of Cleaner Production,
Год журнала:
2023,
Номер
429, С. 139519 - 139519
Опубликована: Ноя. 3, 2023
Photocatalytic
degradation
of
pharmaceutical
pollutants
in
water
or
wastewater
is
becoming
a
hot
topic
for
environmental
clean-up.
Herein,
novel
CeFeCu
trimetal
oxide
(CFC
TMO)/Bi2O3
(CFCB)
photocatalysts
were
prepared
through
precursor
mixing,
ultrasonication,
and
calcination
methods
used
photocatalytic
sulfamethoxazole
(SMZ).
The
pseudo-first
order
kinetic
rate
CFCB-2
catalyst
on
SMZ
reached
0.0577
min−1
which
4.93
10.02
times
higher
than
α-Bi2O3
CFC
TMO
under
visible
light
illumination.
This
was
proved
by
the
strong
interaction
between
pristine
materials
as
confirmed
XPS
density
functional
theory
(DFT)
calculations.
DFT
calculations
indicated
that
having
more
orbital
distribution
could
make
it
easier
to
capture
electrons
produce
radicals
electron
transfer.
Meanwhile
by-products
showed
no
sign
cytotoxicity
towards
human
embryonic
kidney
cell
line
(HEK
293)
intestinal
epithelial
(CACO-2).
findings
scavenger
experiments
ESR
measurements
•OH
•O2−
played
superior
role
decomposition
SMZ.
Furthermore,
S-scheme
charge
carrier
transfer
pathway
are
proposed
analysed.
study
paves
ways
into
promising
strategy
construction
based
heterojunction
decontamination
can
be
extended
other
applications
such
Fenton-like
reactions
persulfate
activation.
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Год журнала:
2024,
Номер
684, С. 133167 - 133167
Опубликована: Янв. 8, 2024
The
increasing
demand
for
clean
water
requires
the
development
of
simple,
cheap,
and
efficient
catalysts
systems
pollution
remediation.
To
develop
cheap
yet
hybrid
advanced
oxidation
processes
degradation
organic
pollutants
in
their
systematic
comparison
under
similar
conditions
to
make
informed
decisions
economically
feasible
sustainable
systems.
Visible
light
active
single
BiOI
N,
Pd
co-doped
TiO2
were
investigated
photocatalytic
ozonation
(PCO)
methylene
blue
(MB)
degradation.
Metal
non-metal
co-doping
improved
morphology,
band
structure
sites
on
surface
shift
its
absorption
into
visible
region.
MB
with
PCO
N,Pd-TiO2
was
practically
but
showed
improvement
mineralization
efficiency.
However,
surpassed
that
due
influenced
generated
free
radicals
during
processes.
system
progressed
through
existence
involvement
strongly
oxidizing
non-selective
hydroxyl
towards
enhanced
dye
intermediates
while
steered
by
superoxide
radical
is
selective
had
lower
efficiency
formed
despite
high
initial
efficacy.
work
demonstrated
semiconductors
like
as
potential
candidates
application
real
applications
matching
activities
UV
TiO2.
This
advances
use
based
environmental
