In
response
to
the
problem
of
high
emulsified
and
dissolved
oils
being
difficult
recovery
from
coal
chemical
wastewater
(CCW),
this
study
specifically
constructed
a
non-polar,
macropore,
hydrophobic
adsorption
material
(pSt-X)
based
on
main
components
these
two
(aromatics
phenols)
for
selective
recovery.
The
results
revealed
that
pSt-X
had
an
capacity
215.52
mg/g,
which
remained
stable
multiple
recycling
sessions,
with
constantly
above
95
%.
has
significantly
larger
particle
size
(0.7
mm~1.2
mm),
simplifies
process
regeneration
effectively
prevents
loss
adsorbent
powder
problem.
demonstrated
remarkable
selectivity
towards
oils,
exhibiting
removal
rates
90.2
%
81.7
%,
respectively.
Moreover,
proved
in
removing
aromatic
hydrocarbons
(AHs)
phenols,
impressive
77.8
85.9
separation
mechanism
oil
substances
was
further
analyzed,
indicating
its
primarily
driven
by
hydrophobic,
π-π,
hydrogen
bonding
interactions
owing
non-polar
macropore
structure
properties.
provide
solid
theoretical
support
green
low-carbon
oily
CCW
are
positive
practical
importance
clean
production
industry.
npj Clean Water,
Journal Year:
2023,
Volume and Issue:
6(1)
Published: Oct. 9, 2023
Abstract
Understanding
the
importance
of
reclaiming
water
from
a
huge
oily
wastewater
stream
generated
during
drilling
oil
in
petroleum
industry
and
mitigating
membrane
fouling,
polymeric-inorganic
nanocomposite
was
fabricated
with
self-cleaning
properties.
The
photocatalytic
TiO
2
nanoparticles
were
embedded
polyvinylidene
fluoride
(PVDF)
matrix
wet
phase
inversion.
To
enhance
separation
potential
activity
nanoparticles,
conjugated
polypyrrole
(PPy)
grown
on
through
oxidative
polymerization
leading
to
an
active
layer
composed
PPy@TiO
nano-photocatalyst.
study
wettability
revealed
hydrophilic
underwater
superoleophobic
nature
/PVDF
membrane.
applied
for
treating
water-containing
emulsified
feed.
Different
types
feeds
contaminated
by
different
oils
such
as
motor
oil,
diesel
crude
studied.
efficiency
stayed
above
99%
allowed
only
permeate
while
rejected.
pure
flux
found
be
dependent
upon
feed
pressure
While
keeping
constant
at
99%,
decreased
increasing
concentration
which
is
attributed
fouling
fouled
photo-catalytically
cleaned
exposing
solar-simulated
visible
light
surface
features
completely
resembled
that
pristine
Environmental Science Nano,
Journal Year:
2023,
Volume and Issue:
10(10), P. 2913 - 2924
Published: Jan. 1, 2023
In
this
study,
carbon
black
nanoparticles
were
introduced
in
one-step
to
develop
a
super-hydrophobic
polystyrene
foam
with
efficient
photo-thermal
conversion
and
adsorption
for
highly
viscous
crude
oil.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(21), P. 11277 - 11286
Published: May 16, 2024
Sustainable
development
has
become
an
inevitable
trend
in
the
world's
green
chemical
industry
for
a
generation
or
more.
In
this
study,
monodisperse
magnetic
polystyrene
mesoporous
composite
microsphere
(MPPS)
composed
of
Fe3O4
nanoparticles
loaded
on
microspheres
is
introduced.
These
serve
as
effective
adsorbents
swift
removal
cationic
dyes.
The
fabrication
wastewater
adsorbent,
with
its
simple
operation
and
economic
practicality,
involved
combination
dispersion
polymerization,
sulfonation
reaction,
two-step
swelling
situ
alkaline
oxidation
technology.
Notably,
adsorption
capacity
within
3
min
reaches
184.0
mg/g,
impressive
efficiency
92%.
This
primarily
attributed
to
high
specific
surface
area
(Smax)
MPPS
providing
more
reaction
sites
π–π
interaction.
Simultaneously,
attractive
force
between
negatively
charged
sulfonic
acid
groups
dyes
enhanced
through
modification
MPPS.
Furthermore,
MPPS,
boasting
maximum
saturation
magnetization
38.19
emu/g,
ensures
rapid
separation
from
solution
recycling
s.
Even
after
5
cycles,
remains
over
90%.
facilitated
by
attraction
under
application
field.
materials
exhibit
outstanding
performance
both
efficient
selective
recyclability,
presenting
novel
adsorbent
promising
prospects
sustainable
development.
innovation
poised
excel
fields
such
sewage
treatment,
separation,
purification.
