Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103718 - 103718
Published: June 14, 2024
Organic
pollutants
in
water
mainly
originate
from
human
activities
and
can
cause
numerous
problems
for
health
the
environment.
In
order
to
avoid
these
problems,
organic
must
be
removed
using
appropriate
effective
methods.
Advanced
oxidation
processes
(AOPs),
which
comprise
different
technologies,
have
attracted
attention
recent
years
due
their
high
efficiency
wastewater
treatment.
This
systematic
review
evaluates
effectiveness
of
nanomaterial-based
AOPs
removing
aqueous
solutions.
The
uniqueness
this
study
is
investigation
response
surface
methodology
(RSM)
models.
Specifically,
present
reviewed
six
subgroups
AOPs,
including
Fe-based,
TiO2-based,
Zn-based,
Cu-based,
Mg-based,
a
set
disparate
categorized
as
others.
effects
process
variables
(including
pH,
contact
time,
initial
pollutant
concentration,
catalyst
dosage)
were
investigated
by
considering
classification
groups.
total,
71
studies
included
review.
data
primarily
analyzed
with
R
software,
graphs
figures
drawn
if
necessary.
average
pooled
percentages
Mg-based
removal,
regardless
type,
87.53
%,
82.61
80.16
82.93
87.93
respectively.
Based
on
review,
nano-based
efficiently
remove
matrices.
Notably,
however,
changed
depending
conditions
applied
system.
Journal of Hazardous Toxic and Radioactive Waste,
Journal Year:
2023,
Volume and Issue:
27(4)
Published: Aug. 3, 2023
The
production
of
pharmaceuticals
in
recent
years
has
been
racing
to
its
peak
due
the
advancement
society
that
led
a
rise
variety
diseases.
Thus,
disposal
these
untreated
pharmaceutical
products
coming
from
hospital
wastewater
and
medicine
manufacturing
plants
water
system
is
causing
serious
environmental
threat.
Therefore,
this
work
mainly
focuses
on
removal
one
widely
used
(e.g.,
paracetamol)
with
help
adsorption
technology
using
metal
oxide-based
polymer,
is,
zinc
oxide/polypyrrole
(ZnO/PPy).
fabricated
adsorbent
was
characterized
X-ray
diffraction,
field
emission
gun–scanning
electron
microscopy,
energy-dispersive
spectroscopy,
Fourier
transform
infrared
Brunauer–Emmett–Teller
analysis
identify
crystal
formation,
morphology,
effective
functional
groups,
surface
area,
respectively.
A
pseudo-second-order
kinetic
model
better
suits
study
compared
pseudo-first-order
intraparticle
diffusion
model.
Langmuir
isotherm
fits
provided
paracetamol
capacity
25.51
mg/g
for
ZnO/PPy.
Monovalent
anions
Cl−,
NO3−,
HCO3−)
have
less
impact
efficiency
(3.0%
∼10.0%)
as
divalent
anion
S2−)
process.
lab
scale
synthesis
cost
ZnO/PPy
observed
∼111
USD/kg
whereas
associated
process
found
be
∼4,347
paracetamol.
Batch
mode
scale-up
design
indicated
addition
∼426
g
required
50
L
contaminated
treatment
95%
efficiency.
Ultrasonics Sonochemistry,
Journal Year:
2022,
Volume and Issue:
91, P. 106236 - 106236
Published: Nov. 23, 2022
Metribuzin
is
an
herbicide
that
easily
contaminates
ground
and
surface
water.
Herein,
La-doped
ZnFe
layered
double
hydroxide
(LDH)
was
synthesized
for
the
first
time
used
degradation
of
metribuzin
via
ultrasonic
(US)
assisted
peroxydisulfate
(PDS)
activation.
The
LDH
had
a
lamellar
structure,
average
thickness
26
nm,
showed
mesoporous
characteristics,
including
specific
area
110.93
m
Nanotechnology Reviews,
Journal Year:
2023,
Volume and Issue:
12(1)
Published: Jan. 1, 2023
Abstract
Thiosulfate
is
a
green
leaching
agent
used
in
the
hydrometallurgical
process
because
it
both
environmentally
benign
and
can
form
required
soluble
ion
complexes.
In
this
article,
novel
method
for
synthesis
of
CdS–Ag
2
S
nanocomposites
from
solution
relevant
complexes
via
ultrasound-assisted
ultraviolet
(UV)
photolysis
was
proposed.
An
analysis
mechanism
revealed
that
undergo
series
photochemical
reactions.
The
were
synthesized
by
co-precipitation
under
UV-C
irradiation.
microstructure,
chemical
composition,
optical
electrochemical
properties
prepared
analyzed
to
verify
investigate
product.
photodegradation
methyl
orange
(MO)
xenon
lamp
performed
determine
photocatalytic
activity.
Under
visible
light
irradiation,
electrons
transition
(from
valence
band
conduction
band)
photogenerated
electron–hole
pairs
realizing
effective
separation
carriers
finally
promote
degradation
MO
water
carbon
dioxide.
subsequent
efficiency
found
be
87%
after
90
min,
larger
than
78%
pure
CdS
UV
photolysis,
indicating
as-developed
effectively
fabricate
photocatalyst
with
superior
performance.
