Crystals,
Journal Year:
2024,
Volume and Issue:
15(1), P. 7 - 7
Published: Dec. 25, 2024
Recent
advancements
in
nanotechnology
have
improved
the
application
of
copper
oxide
(CuO)
nanostructures,
known
for
their
diverse
antibacterial,
electrical,
catalytic,
optical,
and
pharmacological
properties,
which
depend
on
nanoparticle
morphology.
This
study
investigated
two
synthesis
methods
structured
CuO:
microwave-assisted
hydrolysis
ultrasound
using
acetate
KOH,
an
eco-friendly
method
involving
cholesterol-free
egg
white
albumin
Solanum
lycopersicum
extract.
Characterization
techniques,
including
XRD,
FTIR,
SEM-EDS,
were
utilized
to
analyze
produced
CuO.
XRD
confirmed
high-purity
monoclinic
CuO
structures
sample
obtained
via
chemical
method,
while
characteristic
peaks
tenorite
dolerophanite
observed
albumin-synthesized
sample.
ATR-FTIR
analysis
revealed
O-H
stretching
bands
around
3400
cm−1,
indicating
adsorbed
H-OH
or
-OH
strong
Cu-O
bond
at
434
cm−1.
The
synthesized
microwave
displayed
superior
crystallinity
compared
commercial
SEM
illustrated
various
morphologies,
such
as
flakes,
microspheres,
irregular
polyhedra,
influenced
by
presence
proteins
organic
acids.
Antibacterial
tests
demonstrated
effective
inhibition
Escherichia
coli
Enterococcus
faecalis,
confirming
potential
a
promising
antibacterial
agent.
Overall,
findings
highlight
effectiveness
green
chemistry
developing
crystalline
applications.
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(1), P. 335 - 335
Published: Jan. 4, 2025
The
sustainability
of
the
planet
is
based
on
reducing
use
fossil
fuels
and
greenhouse
gas
emissions.
recovery
biomass
waste
puts
economically
valuable
materials
into
circulation,
which
can
successfully
replace
would
otherwise
be
sent
to
landfills.
Based
review
several
published
works,
we
observe
that
referenced
processes
value
or
are
not
necessarily
most
profitable
environmentally
friendly.
used
methods
valorize
mainly
researchers
knowledge
experience,
neglecting
some
more
appropriate
developing
technologies.
valorization
wastes
should
promote
production
products
with
highest
added
value,
it
must
also
friendly
cost-effective.
This
manuscript
proposes
a
hierarchy
for
various
waste,
from
agricultural
activities,
urban
solids
food
processing
industries,
even
wood
industries.
proposed
number
recommendations
aimed
at
increasing
biomass,
in
order
reach
objective
carbon
neutrality
comply
principles
circular
economy.
Processes,
Journal Year:
2025,
Volume and Issue:
13(2), P. 566 - 566
Published: Feb. 17, 2025
Green
materials
are
emerging
as
sustainable
alternatives
in
water
and
wastewater
treatment.
Due
to
their
biodegradability,
renewable
origin
low
toxicity
characteristics,
green
an
alternative
conventional
synthetic
materials.
include
nanomaterials
of
natural
origin,
biopolymers
composites
that
optimize
the
adsorption
removal
contaminants.
The
applications
cellulose
nanofibers,
alginates,
chitosan
lignin
stand
out,
well
functionalized
hydrogels
aerogels
for
heavy
metals,
dyes
organic
analysis
mechanisms
processes
contaminant
modeling
optimization
techniques
included
key
tools
design
these
materials,
allowing
one
predict
properties,
simulate
interactions
customize
solutions.
Despite
sustainability
benefits
they
face
technical
economic
challenges,
such
scalability,
synthesis
costs
experimental
validation.
This
work
concluded
combined
with
tools,
essential
move
towards
more
sustainable,
efficient
environmentally
friendly
treatment
technologies,
aligned
global
objectives
development
climate
change
mitigation.
