International Journal of Environmental & Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 17
Опубликована: Ноя. 26, 2024
This
study
reports
the
designing
of
comb-type
polyethylene
glycol
(PEG)-functionalised
poly
(3-hydroxybutyrate)-@Titanium
oxide
(PHB-comb-PEG@TiO2)
through
reversible
addition-fragmentation
chain
transfer
(RAFT)
polymerisation
approach
for
first
time
and
successfully
used
as
a
potential
candidate
safranin-O
(Saf-O)
removal
from
water.
The
synthesised
polymeric
material
was
characterised
by
different
techniques
to
examine
surface
morphology,
elemental
analysis,
functionality,
chemical
structure
prepared
SEM,
EDX,
FTIR,
1
h
NMR.
Different
parameters
such
pH,
adsorbent
dose,
temperature,
concentration,
equilibrium
were
optimised
during
this
enhance
adsorption
performance.
mechanism
pattern
kinetic
best
defined
Langmuir
pseudo-second-order
kinetics
with
maximum
capacity
344.83
mg/g.
A
linear
concentration
range
(10–150
μg/L)
obtained
satisfactory
low
limit
detection
(LOD)
quantification
(LOQ)
achieved
0.43
1.4
μg/L,
respectively.
developed
utilised
Saf-O
an
aqueous
medium.
results
suggest
that
designed
could
be
in
terms
its
reusability,
simplicity,
high
capacity,
cost-effectiveness,
excellent
range,
fast
kinetics.
Polymers,
Год журнала:
2024,
Номер
16(15), С. 2227 - 2227
Опубликована: Авг. 5, 2024
Biopolymers
are
highly
desirable
alternatives
to
petrochemical-based
plastics
owing
their
biodegradable
nature.
The
production
of
bioplastics,
such
as
polyhydroxyalkanoates
(PHAs),
has
been
widely
reported
using
various
bacterial
cultures
with
substrates
ranging
from
pure
biowaste-derived
sugars.
However,
large-scale
and
economic
feasibility
major
limiting
factors.
Now,
algal
biomass
for
PHA
offers
a
potential
solution
these
challenges
significant
environmental
benefit.
Algae,
unique
ability
utilize
carbon
dioxide
greenhouse
gas
(GHG)
wastewater
feed
growth,
can
produce
value-added
products
in
the
process
and,
thereby,
play
crucial
role
promoting
sustainability.
sugar
recovery
efficiency
is
variable
depending
on
pretreatment
procedures
due
inherent
compositional
variability
among
cell
walls.
Additionally,
yields,
composition,
properties
synthesized
vary
significantly
microbial
producers
algal-derived
Therefore,
microalgal
pretreatments
synthesis
copolymers
still
require
considerable
investigation
develop
an
efficient
commercial-scale
process.
This
review
provides
overview
discusses
strategies
enhance
its
properties,
focusing
managing
GHGs
sustainable
future.
Applied Water Science,
Год журнала:
2025,
Номер
15(4)
Опубликована: Март 12, 2025
The
global
increase
in
plastic
production
has
significantly
contributed
to
the
contamination
of
aquatic
environments
with
MPs.
This
study
examined
adsorption
CV
dye
onto
PS
MPs
ecosystems.
BBD
was
utilized
optimize
conditions
and
evaluate
effects
key
independent
variables
on
process.
sorption
experiments
were
conducted
using
reaction
mixtures
containing
at
levels
ranging
from
0.1
1.5
g/L
concentrations
5
20
mg/L.
pH
samples
adjusted
range
4
10,
while
duration
interaction
varied
between
10
60
min.
findings
revealed
that
optimal
rate
for
(84.96%)
achieved
a
level
12.5
mg/L,
dosage
1
g/L,
7,
an
35
In
this
investigation,
ZP
particles
transitioned
−
45.6
16.8
mV
following
CV.
Furthermore,
kinetics
most
accurately
described
by
pseudo-first-order
model,
demonstrating
high
R2
value
0.99.
Langmuir
isotherm
(R2
=
0.99)
further
confirmed
presence
significant
interactions
molecules
surface
sorbent,
highest
capacity
quantified
6.25
mg/g.
highlights
role
microplastics
as
carriers
harmful
dyes,
such
CV,
environments.
It
underscores
urgent
need
research
into
environmental
consequences
microplastic
pollution
development
strategies
mitigate
their
impact.
Frontiers in Chemistry,
Год журнала:
2024,
Номер
12
Опубликована: Март 14, 2024
This
work
refers
to
the
synthesis
and
characterization
of
poly
(3-hydroxybutyrate)-b-oligo
(2-ethyl
oxazoline)
(oligoEtOx).
Cationic
ring-opening
polymerization
2-ethyl
oxazoline
yielded
(oligoEtOx)
with
a
hydroxyl
end.
Carboxylic
acid-terminated
PHB
was
reacted
oligoEtOx
via
dicyclohexylcarbodiimide
chemistry
obtain
PHB-b-oligoEtOx
conjugates.
The
obtained
conjugates
were
successfully
characterized
by
1H-
13C
NMR,
FTIR,
DSC,
size
exclusion
chromatography.
can
be
promising
biologic
active
materials.
