SnS2
nanosheets
was
synthesized
by
simple
hydrothermal
method
and
prepared
with
multi-walled
carbon
nanotubes
(MWNTs)
into
sponge
electrodes
to
form
SnS2/MWNTs/sponge
electrode,
which
used
in
dielectric
barrier
discharges
(DBD)
system
for
CO2
reduction
reaction
(CO2RR).
The
amounts
of
formate
formaldehyde
produced
electrode
were
299.52
μmol·h-1
31.62
μmol·h-1,
2.81
times
2.61
that
MWNTs/sponge
electrodes,
respectively.
mechanism
CO2RR
studied
quencher
experiment,
the
main
contribution
order
active
substance
DBD
is:
H+>e->•OH>•O2-.
effect
degradation
ability
systems
under
different
pollutants
electrolyte
environments
discussed.
It
found
process
consumed
H+
e-
solution,
thereby
inhibiting
CO2RR.
Generally,
high-efficiency
provided
a
reference
design
catalysts
pollutant
plasma
gas-liquid
system.
Water Environment Research,
Год журнала:
2024,
Номер
96(8)
Опубликована: Авг. 1, 2024
Abstract
This
study
presents
an
innovative
double‐walled
borosilicate
glass
reactor
system
for
the
efficient
treatment
of
liquid
and
gaseous
wastewater.
allows
precise
temperature
control,
continuous
pH
monitoring,
controlled
dosing
reagents
to
optimize
reaction
conditions.
Detailed
characterization
was
carried
out
by
X‐ray
diffraction
(XRD),
Fourier
transforms
infrared
spectroscopy
(FTIR),
BET
(specific
surface
area)
analysis,
point
zero
charge
(PZC),
scanning
electron
microscopy
(SEM)
SCR,
SCRT,
5%Fe@SCRT
materials.
For
Malachite
Green
adsorption,
SRCT
demonstrated
a
maximum
adsorption
capacity
39.78
±
0.5
mg/g
using
Langmuir
isotherm
model
followed
pseudo‐second‐order
kinetics.
Optimum
conditions
were
found
be:
initial
concentration
50
ppm,
adsorbent
dosage
1
g/l,
8.5,
50°C.
catalytic
oxidation
phenol,
5%Fe@SRCT
achieved
remarkable
removal
rate
99.9
0.1%
under
optimum
(50
ppm
g/l
catalyst
dosage,
3.5,
H
2
O
8.7
mM,
70°C).
Intermediates
identified
during
included
hydroquinone,
benzoquinone,
catechol,
resorcinol,
with
degradation
occurring
over
60‐minute
period.
The
material
showed
excellent
reusability
in
phenol
oxidation,
no
significant
loss
efficiency
three
cycles,
while
underwent
cycles
regeneration
Green.
Scavenger
tests
confirmed
involvement
hydroxyl
radicals
process.
In
addition,
fish
survival
after
impact
on
fish,
underlining
environmental
safety
this
germination
decolorization
MG
good
effect
negative
impact,
reinforcing
ecological
value
technology.
These
results
highlight
use
SCRT
as
versatile
materials
remediation,
exploiting
their
effective
capacities
performance
within
proposed
system.
Practitioner
Points
demonstrates
effectiveness
employing
Fe@SRCT
malachite
green
from
Environmental
assessment,
including
seed
evaluation,
validates
method's
eco‐friendly
potential.
Implementation
approach
could
significantly
contribute
sustainable
water
practices.
Case Studies in Chemical and Environmental Engineering,
Год журнала:
2023,
Номер
8, С. 100470 - 100470
Опубликована: Авг. 28, 2023
The
uncontrolled
discharge
of
wastewater
into
aquatic
ecosystems
or
receiving
environments
causes
serious
impacts,
including
environmental
pollution
[eutrophication]
and
the
spread
diseases
in
humans.
Therefore,
it
is
crucial
indispensable
to
implement
adequate
efficient
treatment
systems
that
allow
removal
compounds
present
wastewater,
microbial
agents,
contaminants
emerging
concern.
objective
this
study
was
determine
types
treatments
being
investigated
Latin
America,
specifically
focusing
on
advanced
oxidation
processes.
An
exhaustive
systematic
review
all
articles
published
recognized
databases
Science
direct
PubMed
carried
out.
Data
were
obtained
by
applying
a
keyword
search
using
Boolean
terms,
collected
according
inclusion
exclusion
criteria
for
from
January
1,
2017
2022.
collection
performed
following
standards
reviews
checklist
used
contrast
quality
relevant
information,
such
as
author
names,
article
title,
year
publication,
database
used,
type
study,
country
where
research
conducted.
In
total,
3081
thoroughly
reviewed
two
databases.
After
thorough
evaluation
objectives,
102
selected
met
established
criteria.
These
studies
covered
period
This
provides
comprehensive
overview
based
processes
America.
results
can
serve
basis
implementation
more
effective
sustainable
strategies
region,
thus
contributing
protection
environment
public
health.
However,
further
promotion
adoption
these
technologies
needed
address
current
future
challenges
related
water
pollution.
Heliyon,
Год журнала:
2024,
Номер
10(12), С. e32894 - e32894
Опубликована: Июнь 1, 2024
This
study
investigated
the
novel
application
of
Fe–TiO2-allophane
catalysts
with
6.0
%
w/w
iron
oxide
and
two
TiO2
proportions
(10
30
w/w)
for
degrading
atrazine
(ATZ)
using
heterogeneous
dual-effect
(HDE)
process
under
sunlight.
Comparative
analyses
Fe-allophane
TiO2-allophane
were
conducted
in
both
photocatalysis
(PC)
HDE
processes.
FTIR
spectra
reveal
unique
hydrous
feldspathoids
structure
allophane,
showing
evidence
new
bond
formation
between
Si–O
groups
allophane
clays
hydroxyl
species,
as
well
Si–O–Ti
bonds
that
intensified
higher
content.
The
exhibited
an
anatase
structure.
In
catalysts,
was
incorporated
through
substitution
Ti4+
by
Fe3+
crystal
lattice
precipitation
on
surface
clays,
forming
small
particles.
Allophane
reduced
agglomeration
particle
size
TiO2,
resulting
enhanced
specific
area
pore
volume
all
catalysts.
Iron
incorporation
decreased
band
gap,
broadening
photoresponse
to
visible
light.
PC
process,
achieves
90
ATZ
degradation,
attributed
radical
species
from
UV
component
exhibit
synergistic
effects,
particularly
achieving
100
degradation
85
COD
removal,
shorter
reaction
time
percentage
increased.
performed
less
acidic
conditions,
complete
after
6
h
without
leaching.
Consequently,
are
proposed
a
promising
alternative
emerging
pollutants
environmentally
friendly
conditions.
Topics in Catalysis,
Год журнала:
2024,
Номер
68(1-2), С. 2 - 12
Опубликована: Июль 17, 2024
Abstract
This
study
explores
the
transformative
potential
of
Pillared
InterLayered
Clays
(PILC)
derived
from
non-conventional
aluminum
sources
as
catalytic
supports
in
synthesis
TiO
2
/catalysts
for
efficient
photodegradation
organic
pollutants
water.
Montmorillonite
(Mt)
and
three
alumina-pillared
montmorillonite
synthesized
using
various
sources,
were
impregnated
with
titanium
to
synthesize
/catalysts.
The
successful
these
materials
was
confirmed
through
several
characterization
techniques
such
X-ray
diffraction
(XRD),
N
adsorption-desorption
at
-196
ºC,
morphological
analysis
scanning
electron
microscopy
(SEM)
transmission
(TEM),
Energy-Dispersive
Spectrometry
(EDX).
photolysis,
adsorption,
behavior
studied
degradation
triclosan
(TCS),
2,6-dichlorophenol
(2,6-DCP),
bisphenol
A
(BPA).
All
catalysts
surpassed
efficacy
commercial
anatase,
/Al-PILC
exhibiting
superior
performance
comparison
/Mt.
Photodegradation
most
effective
under
UV
radiation,
TCS
demonstrating
highest
(approximately
70%).
Notably,
Al-PILC
samples,
particularly
those
saline
slags,
displayed
enhanced
properties.
Among
them,
AE
exhibited
rates
both
visible
light,
underlining
remarkable
slags
precursors
synthesis.
provides
valuable
insights
into
design
development
water
treatment
applications,
paving
way
sustainable
solutions
realm
environmental
remediation.
