The
sodium
alginate-pluronic
F127-modified
SnO2
(SAPFSO)
NPs
were
prepared
using
the
green
method.
SAPFSO
exhibit
a
tetragonal
rutile
structure
from
X-ray
diffraction
patterns.
FESEM
and
EDAX
spectra
identified
morphology
chemical
composition.
Sodium
Alginate,
Pluronic
F127,
functional
group
vibrations
can
be
seen
in
FTIR
spectra.
DLS
hydrodynamic
sizes
of
observed
at
183
nm.
various
surface
defects
PL
spectrum.
antimicrobial
activity
was
tested
against
gram-positive
gram-negative
strains
such
as
S.
aureus,
K.
pneumoniae,
dysenteriae,
Bacillus
megaterium,
Proteus
valgaris,
Candida
albicans
fungal
strain
well-diffusion
To
increase
concentration,
also
increased
activity.
anticancer
human
breast
cancer
cell
line
(MDA-MB-237).
These
results
support
that
applied
healthcare
industrial
settings
to
improve
health.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
12
Published: Aug. 6, 2024
PVA
hydrogels
present
many
characteristics
of
the
ideal
dressing,
although
without
antimicrobial
properties.
The
work
aims
to
study
physical,
mechanical
and
release
hydrogel
wound
dressings
loaded
with
either
two
natural
herbal
products,
sage
extract
dragon's
blood.
Energy Sources Part A Recovery Utilization and Environmental Effects,
Journal Year:
2024,
Volume and Issue:
46(1), P. 6816 - 6829
Published: May 22, 2024
Glycerin
carbonate
with
high
oxygen
content
has
the
potential
to
be
an
oxygenated
fuel
additive
that
improves
properties
and
reduces
harmful
gas
emissions.
was
produced
from
green
solvent
dimethyl
glycerin
through
a
heterogeneous
catalytic
membrane
under
environmentally
friendly
mild
conditions.
The
PVA/NaOH
prepared
in
film
form
polyvinyl
alcohol
(PVA)
polymer
good
film-forming
sodium
hydroxide,
strong
base.
obtained
by
adding
hydroxide
is
easy
recovery.
chemical
structure
thermal
resistance
of
membranes
were
examined
Fourier-transform
infrared
spectroscopy
Thermogravimetric
analysis.
Reaction
experiments
carried
out
batch
reactor,
influences
reaction
parameters
such
as
time,
catalyst
amount,
DMC/glycerin
initial
molar
ratio,
temperature
on
yield
investigated.
maximum
93.03%
after
2
h
NaOH
ratio
7.5%
DMC/Glycerin
3/1,
75°C.
Additionally,
variables
analyzed
data
are
supported
Response
surface
method
(RSM).
Membranes,
Journal Year:
2022,
Volume and Issue:
12(6), P. 607 - 607
Published: June 11, 2022
In
this
work,
silica
nanoparticles
were
produced
in
situ,
to
be
embedded
eventually
the
polyamide
layer
formed
during
interfacial
polymerization
for
fabricating
thin-film
nanocomposite
membranes
with
enhanced
performance
dehydrating
isopropanol
solution.
The
synthesized
through
a
sol-gel
reaction
between
3-aminopropyltrimethoxysilane
(APTMOS)
and
1,3-cyclohexanediamine
(CHDA).
Two
monomers-CHDA
(with
APTMOS)
trimesoyl
chloride-were
reacted
on
hydrolyzed
polyacrylonitrile
(hPAN)
support.
To
obtain
optimum
conditions,
ratio
of
APTMOS
CHDA
time
varied.
Field
emission
scanning
electron
microscopy
(FESEM)
atomic
force
(AFM)
used
illustrate
change
morphology
as
result
embedding
nanoparticles.
optimal
conditions
preparing
membrane
turned
out
0.15
(g/g)
APTMOS/CHDA
60
min
mixing
CHDA,
leading
following
performance:
flux
=
1071
±
79
g∙m-2∙h-1,
water
concentration
permeate
97.34
0.61%,
separation
factor
85.39.
A
stable
was
shown
by
under
different
operating
where
more
than
90
wt%.
Therefore,
embedment
generated
situ
efficiency
membrane.
Chemical Engineering & Technology,
Journal Year:
2022,
Volume and Issue:
45(12), P. 2130 - 2138
Published: Sept. 7, 2022
Abstract
A
commercial
thin‐film
membrane
(unmodified)
of
polyamide
improved
by
poly(vinyl
alcohol)
(PVA)‐coated
membranes
(modified)
was
investigated
for
separating
phenol
in
sour
water
reverse
osmosis.
Dependences
pressure
and
pore
surface
area
on
flux
rejection
were
tested.
graphical
correlation
found
between
the
relative
decline
concentration
decrease
feed.
The
modified
provided
86
%
at
2
bar
with
highest
permeate
8.46
L
m
−2
h
−1
.
average
contact
angle
former
58.4°,
while
that
49.1°.
reduction
enhances
hydrophilicity
leading
to
antifouling
effect.
provides
95.4
recovery
compared
unmodified
only
66.2
%.
Water,
Journal Year:
2024,
Volume and Issue:
17(1), P. 60 - 60
Published: Dec. 29, 2024
Oxygenates
removal
from
wastewater
is
an
actual
task
for
gas-
and
petrochemical
industry.
Pervaporation
one
of
most
promising
processes
oxygenates
recuperation.
In
this
work,
pervaporation
composite
membranes
with
a
polyalkylmethylsiloxane
(alkyl
substituents:
hexyl,
heptyl,
octyl
decyl)
selective
layer
were
developed
studied
the
first
time
during
separation
four-component
mixture
(1-butanol—1-propanol—ethanol—water).
It
was
shown
that
increase
in
length
side
substituent
leads
to
selectivity
decrease
permeability
water.
The
influence
pore
size
support
on
transport
properties
studied.
found
mass
transfer
resistance
membrane.
For
example,
based
polyheptylmethylsiloxane,
normalized
33
×
10−3
11
molꞏmꞏPa−1ꞏm−2ꞏh−1
micro-
ultrafiltration
porous
supports.
best
characteristics
comparison
commercial
silicone
rubbers
demonstrated
by
polydecylmethylsiloxane
polyheptylmethylsiloxane
microfiltration
support:
selectivities
n-butanol,
n-propanol
ethanol
2.0
2.3,
1.8
1.8,
1.0
0.9,
respectively.
Normalized
permeabilities
16
molꞏmꞏPa−1ꞏm−2ꞏh−1,
30
12
6
