Molecules,
Год журнала:
2024,
Номер
29(21), С. 5150 - 5150
Опубликована: Окт. 31, 2024
In
this
study,
the
effectiveness
of
Fenton
process
in
removing
natural
organic
matter
(NOM)
from
groundwater
was
investigated.
The
subject
study
is
characterised
by
increased
content
NOM
and
iron
(II)
compounds.
laboratory-scale
studies,
influence
ratio
concentrations
Fe(II)
ions,
which
are
naturally
occurring
groundwater,
to
hydrogen
peroxide
(H
Journal of Applied Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 18, 2025
ABSTRACT
The
expansion
of
human
population
in
many
parts
the
world
is
increasing
demand
for
fresh
water
and
contamination
by
contaminants
such
as
dye,
others
requires
efficient,
easy‐to‐use,
cheap
environmentally
sustainable
technologies
to
perform
purification
tasks.
In
this
work,
nanostructured
eco‐friendly
bio‐based
castor
oil
polyurethane
foams
that
can
remove
heavy
metal
ions
from
contaminated
were
customized
add
another
function
associated
with
photodegradation
organic
molecules.
To
end,
(containing
cellulose‐halloysite
nanocomposite
units)
coated
poly(styrene)‐b‐(polyethylene‐ran‐butylene)‐b‐polystyrene
(SEBS)
non‐solvent
induced
phase
separation
(NIPS)
process
first
time.
deposition
coating
also
allowed
incorporation
titanium
dioxide
(TiO
2
)
nanoparticles
applying
a
new
strategy,
which
suspended
prior
NIPS
process.
These
modulated
mixed
have
generated
capable
degrading
at
least
10%
methylene
blue
dye
through
photocatalysis.
photocatalytic
system
inactivated
pH
where
=
2.0
does
not
promote
photocatalysis
but
activated
pH.
effect
only
0.5%
mass
TiO
foam,
approximately
10
mg
,
was
9.22%
10.02%
20
mg.
Polymers,
Год журнала:
2025,
Номер
17(7), С. 856 - 856
Опубликована: Март 23, 2025
Bisphenol
A
is
a
widely
recognized
endocrine
disruptor
that
persists
in
ecosystems,
harms
aquatic
organisms,
and
contributes
to
ecological
degradation,
raising
global
environmental
concerns.
Numerous
studies
have
explored
β-cyclodextrin-based
adsorbents
for
removal;
however,
their
regeneration
remains
major
challenge,
often
relying
on
energy-intensive
processes
excessive
use
of
organic
solvents.
In
this
study,
was
selected
as
model
pollutant,
its
adsorption
onto
β-cyclodextrin
nanosponges
investigated.
After
adsorption,
efficiently
recovered
from
the
saturated
using
an
innovative
sustainable
supercritical
CO2-based
green
process,
which
simultaneously
regenerated
adsorbent.
The
process
achieved
efficiency
95.51
±
0.82%
under
optimized
conditions
(C0
=
150
mg/L,
mβ-CDNS
0.15
g,
T
25
°C,
N
200
rpm),
with
maximum
capacity
47.75
0.28
mg/g.
over
99%
at
60
°C
300
bar,
10%
(v/v)
ethanol
co-solvent,
nearly
fully
restoring
adsorbent's
performance.
Unlike
conventional
techniques,
approach
eliminates
need
environmentally
harmful
solvents
while
preserving
structural
integrity,
making
it
highly
efficient
alternative.
This
study
first
demonstrate
effective
application
removal,
providing
scalable
solution
wastewater
treatment.
Furthermore,
characterization
analyses
confirmed
adsorbent
retained
chemical
morphological
stability
after
regeneration.
Chemical Engineering & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
Abstract
Doxycycline
(DOX)
is
a
contaminant
present
in
different
water
bodies.
Fenton
and
photo‐Fenton
are
two
advanced
oxidation
technologies
with
high
potential
for
environmental
remediation.
This
study
aimed
to
eliminate
DOX
from
aqueous
solutions
using
Fenton,
photo‐Fenton,
helicoidal
flow
reactor.
The
experimental
conditions
related
the
presence
of
ferrous
ions
hydrogen
peroxide
were
optimized.
After
60
min
reaction,
extents
pollutant
elimination
mineralization
∼85.0
%
∼30.0
%,
respectively.
Hydroxyl
radicals
identified
as
agents
responsible
under
evaluated
conditions.
Finally,
some
reaction
by‐products
identified,
removal
route
was
proposed.
RSC Advances,
Год журнала:
2024,
Номер
14(47), С. 35128 - 35162
Опубликована: Янв. 1, 2024
Bisphenol
A
(BPA)
raises
concerns
among
the
scientific
community
as
it
is
one
of
most
widely
used
compounds
in
industrial
processes
and
a
component
polycarbonate
plastics
epoxy
resins.
In
this
review,
we
discuss
mechanism
BPA
toxicity
food-grade
plastics.
Owing
to
its
proliferation
aqueous
environment,
delved
into
performance
various
biological,
physical,
chemical
techniques
for
remediation.
Detailed
mechanistic
insights
these
removal
are
provided.
The
toxic
effects
unravel
changes
at
cellular
level
brain,
which
can
result
learning
difficulties,
increased
aggressiveness,
hyperactivity,
endocrine
disorders,
reduced
fertility,
risk
dependence
on
illicit
substances.
Bacterial
decomposition
leads
new
intermediates
products
with
lower
toxicity.
Processes
such
membrane
filtration,
adsorption,
coagulation,
ozonation,
photocatalysis
have
also
been
shown
be
efficient
aqueous-phase
degradation.
breakdown
discussed.
review
demonstrates
that
high
efficiency
usually
achieved
expense
throughput.
For
scalable
application
degradation
technologies,
needs
remain
We
propose
need
process
intensification
using
an
integrated
combination
processes,
solve
multiple
associated
challenges.