Microalgae-based bioremediation of refractory pollutants: an approach towards environmental sustainability
Microbial Cell Factories,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: Jan. 14, 2025
Abstract
Extensive
anthropogenic
activity
has
led
to
the
accumulation
of
organic
and
inorganic
contaminants
in
diverse
ecosystems,
which
presents
significant
challenges
for
environment
its
inhabitants.
Utilizing
microalgae
as
a
bioremediation
tool
can
present
potential
solution
these
challenges.
Microalgae
have
gained
attention
promising
biotechnological
detoxifying
environmental
pollutants.
This
is
due
their
advantages,
such
rapid
growth
rate,
cost-effectiveness,
high
oil-rich
biomass
production,
ease
implementation.
Moreover,
microalgae-based
remediation
more
environmentally
sustainable
not
generating
additional
waste
sludge,
capturing
atmospheric
CO
2
,
being
efficient
nutrient
recycling
algal
production
biofuels
high-value-added
products
generation.
Hence,
achieve
sustainability's
three
main
pillars
(environmental,
economic,
social).
Microalgal
mediate
contaminated
wastewater
effectively
through
accumulation,
adsorption,
metabolism.
These
mechanisms
enable
reduce
concentration
heavy
metals
levels
that
are
considered
non-toxic.
However,
several
factors,
microalgal
strain,
cultivation
technique,
type
pollutants,
limit
understanding
removal
mechanism
efficiency.
Furthermore,
adopting
novel
technological
advancements
(e.g.,
nanotechnology)
may
serve
viable
approach
address
challenge
refractory
pollutants
process
sustainability.
Therefore,
this
review
discusses
ability
different
species
mitigate
persistent
industrial
effluents,
dyes,
pesticides,
pharmaceuticals.
Also,
paper
provided
insight
into
nanomaterials,
nanoparticles,
nanoparticle-based
biosensors
from
immobilization
on
nanomaterials
enhance
open
new
avenue
future
advancing
research
regarding
biodegradation
Language: Английский
Bio‐Inspired Synthesis and Photocatalytic Applications of α‐Fe₂O₃@ZnO Nanobinary Using Laurus nobilis Leaf Extract: Efficient for Anionic and Cationic Dye Degradation With Reusability Studies
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(4)
Published: March 11, 2025
ABSTRACT
This
study
investigates
the
sustainable
synthesis
and
applications
of
α‐Fe₂O₃@ZnO
nanocomposites
derived
using
Laurus
nobilis
leaf
extract
as
a
natural
reducing
agent,
promoting
eco‐friendly
material
development
for
environmental
remediation.
XRD
analysis
confirmed
formation
nanocomposite
with
crystallite
size
21.48
nm,
while
SEM
revealed
porous
structure
uniformly
distributed
particles
ranging
from
20
to
50
nm.
FTIR
spectroscopy
identified
characteristic
Fe‐O
Zn‐O
bonds,
ensuring
nanocomposite's
purity.
Optical
showed
direct
indirect
bandgap
energies
2.80
1.16
eV,
respectively,
highlighting
its
excellent
optical
properties.
The
demonstrated
remarkable
photocatalytic
efficiency,
achieving
96.3%
degradation
Brilliant
Cresyl
Blue
(BCB)
dye
95.88%
Rose
Bengal
(RB)
within
120
min
under
sunlight
irradiation.
followed
first‐order
kinetics,
rate
constants
0.0241
−1
BCB
0.01875
RB.
exhibited
reusability,
maintaining
93.5%
efficiency
after
five
cycles,
structural
stability
throughout
repeated
use.
These
results
underscore
multifunctional
potential
green‐synthesized
dye‐contaminated
wastewater
treatment,
contributing
technologies.
Language: Английский
Sustainable synthesis of nanomaterials using different renewable sources
Bulletin of the National Research Centre/Bulletin of the National Research Center,
Journal Year:
2025,
Volume and Issue:
49(1)
Published: April 9, 2025
Abstract
Background
The
synthesis
of
nanomaterials
has
traditionally
relied
on
methods
that
pose
significant
environmental
risks
due
to
high-energy
demands,
hazardous
chemicals,
and
waste
generation.
For
instance,
conventional
techniques
such
as
chemical
vapor
deposition
the
sol–gel
process
are
known
for
their
consumption
production
toxic
by-products.
This
context
emphasizes
importance
sustainability
in
nanomaterial
synthesis,
leading
a
shift
toward
more
eco-friendly
integrate
principles
green
chemistry
lessen
influence
environment.
transition
addresses
harmful
effects
associated
with
traditional
approaches
promotes
use
renewable
resources,
biomass
agricultural
waste,
production.
Main
body
review
focuses
sustainable
utilize
biomass,
natural
extracts.
These
reduce
energy
consumption,
limit
generation,
enhance
recyclability,
supporting
nanocircular
economy.
Various
strategies,
including
hydrothermal
solvents,
examined
effectiveness
producing
desirable
properties.
also
highlights
broad
applications
these
catalysis,
sensing,
biomedical
fields,
storage.
Despite
considerable
advancements,
field
faces
ongoing
challenges
related
scalability,
comprehensive
impact
assessments,
need
performance
optimization.
Conclusion
presents
opportunities
advancing
technologies
reducing
footprint
While
remain,
continued
research
innovation
promise
further
progress
scalable
efficient
methods,
driving
development
an
environmentally
conscious
approach
synthesis.
Language: Английский