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.
C – Journal of Carbon Research,
Journal Year:
2024,
Volume and Issue:
10(4), P. 92 - 92
Published: Oct. 15, 2024
The
increasing
presence
of
antibiotics
in
wastewater
poses
significant
environmental
risks,
including
the
promotion
antibiotic
resistance
and
harm
to
aquatic
ecosystems.
This
study
reviews
advancements
graphene-based
technologies
for
removing
from
between
2016
2024.
Graphene-based
platforms,
such
as
graphene
oxide
(GO),
reduced
(rGO),
composites,
have
shown
great
promise
this
field
because
their
exceptional
adsorption
capacities
rapid
photocatalytic
degradation
capabilities.
Functionalized
materials
integrated
with
other
substances,
metal
oxides
polymers,
enhanced
performance
terms
removal
through
mechanisms
photocatalysis.
These
been
evaluated
under
various
conditions,
pH
temperature,
demonstrating
practical
applicability.
Despite
challenges
related
scalability,
cost-effectiveness,
impact,
during
period
highlight
potential
effective
removal,
paving
way
safer
more
sustainable
management
practices.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(17), P. 2512 - 2512
Published: Sept. 4, 2024
The
aim
of
this
study
was
to
develop
new
materials
with
adsorbent
properties
that
can
be
used
for
the
adsorption
recovery
Au(III)
from
aqueous
solutions.
To
achieve
result,
it
is
necessary
obtain
inexpensive
in
a
granular
form.
Concomitantly,
these
must
have
high
capacity
and
selectivity.
Other
desired
include
higher
physical
resistance,
insolubility
water,
regenerated
or
reused.
Among
methods
applied
separation,
purification,
preconcentration
platinum-group
metal
ions,
recognised
as
one
most
promising
because
its
simplicity,
efficiency,
wide
availability.
studies
were
carried
out
using
three
supports:
cellulose
(CE),
chitosan
(Chi),
diatomea
earth
(Diat).
These
supports
functionalised
by
impregnation
extractants,
ultrasound
method.
extractants
are
environmentally
friendly
relatively
cheap
amino
acids,
which
contain
their
structure
pendant
groups
nitrogen
sulphur
heteroatoms
(aspartic
acid—Asp,
l-glutamic
acid—Glu,
valine—Val,
DL-cysteine—Cys,
serine—Ser).
After
preliminary
testing
75
synthesised
materials,
CE-Cys
chosen
further
ions
highlight
morphology
functionalisation
material,
we
physicochemically
characterised
obtained
material.
Therefore,
analysis
specific
surface
porosity
showed
material
has
4.6
m2/g,
about
3
nm.
FT-IR
presence,
at
wavelength
3340
cm−1,
NH
bond
vibration
cysteine.
At
same
time,
pHpZc
determined
2.8.
kinetic,
thermodynamic,
equilibrium
pseudo-second-order
kinetic
model
best
describes
process
on
A
maximum
12.18
mg
per
gram
achieved.
It
established
reused
five
times
good
degree.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Sept. 4, 2024
The
accumulation
of
nisin
in
the
fermentation
medium
can
reduce
process's
productivity.
This
research
studied
potential
Nymphaea
alba
leaf
powder
(NALP)
as
a
hydrophobic
biosorbent
for
efficient
in-situ
adsorption
from
by
docking
and
experimental
analysis.
Molecular
analysis
showed
that
di-galloyl
ellagic
acid,
phytochemical
compound
found
N.
alba,
had
highest
affinity
towards
nisin.
Enhancements
were
seen
following
pre-treatment
NAPL
with
HCl
MgCl
ChemEngineering,
Journal Year:
2024,
Volume and Issue:
8(6), P. 118 - 118
Published: Nov. 18, 2024
Heavy
metal
pollution
is
a
worldwide
and
stringent
concern
following
many
decades
of
industrialization
intensive
mining
without
(in
some
cases)
consideration
for
environmental
protection.
This
review
aims
to
identify
the
existing
emerging
techniques
heavy
metals
(HM)
removal/recycling
from
water
wastewater,
with
an
emphasis
on
cobalt.
Unlike
other
metals,
cobalt
has
not
been
considered
detrimental
element
environment
human
beings
until
recently.
Thus,
several
methods
applicable
were
evaluated
best
treatment
approaches
cobalt-polluted
wastewater.
The
most
feasible
depollution
adapted
source,
environment,
economic
conditions
investigated
concluded.
operations
processes
presented
in
this
paper
are
conventional
innovative
as
well,
including
precipitation,
membrane
separation,
ultrafiltration
(UF)
nanofiltration
(NF),
but
also
reverse
osmosis/forward
osmosis
(RO/FO),
sorption/chemisorption
processes,
flotation/mechanical
separation
combined
coagulation/flocculation,
photocatalysis,
electrochemical
processes.
For
each
one,
depending
frequency
use,
physicochemical
mechanisms
optimal
operational
identified
carry
out
successful
removal
recovery
aqueous
environments.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
2(2), P. 1879 - 1879
Published: Nov. 20, 2024
Owing
to
current
growing
demands
of
environmental
friendly
energy
devices,
innumerable
green
materials/nanomaterials
have
been
applied
design
the
desired
high
tech
devices.
Amongst
supercapacitors
ranked
distinctively
for
efficient
storage
competence.
Principally,
nanocomposites
derived
from
or
ecological
polymers
and
nanoparticles
scrutinized
supercapacitor
components.
Concerning
this,
review
has
planned
sketch
application
nanocomposites,
predominantly
supercapacitors.
In
this
concern,
mostly
synthetic
(such
as
polyaniline,
polypyrrole,
etc.)
their
blends
with
natural
(like
chitosan)
having
fine
biodegradability,
non-toxicity,
low
cost,
superior
device
end
performance
found
noteworthy
materials.
Additionally,
nanofillers
like
carbon
(carbon
nanotube,
graphene,
metal
processed
via
techniques,
in
situ,
solution,
sonication,
mixing,
hydrothermal,
exfoliation,
reduction,
etc.,
form
anticipated
consequence,
designed
expectedly
had
advantages
price/weight,
mechanical/heat
resilience,
electron
transference,
capacitance,
power/charge
density,
charge-discharge,
sustainability
well
environmentally
friendliness
related
methodological
systems.
Incidentally,
challenges
towards
devices
conversed.
Fire,
Journal Year:
2024,
Volume and Issue:
7(12), P. 449 - 449
Published: Nov. 29, 2024
The
presented
study
deals
with
the
effectiveness
of
sorbents
in
equipment
firefighting
units
Slovakia.
Currently,
there
are
many
manufacturers
on
market
and
also
a
number
types
these
products.
As
result
an
emergency
road,
especially
case
traffic
accidents,
can
be
leakage
dangerous
substances.
From
this
point
view,
it
is
necessary
to
prevent
substance
escaping
into
environment
as
quickly
possible
choose
suitable
sorption
material
leakage.
For
stated
reasons,
aim
submitted
paper
was
research
used
by
fire
brigades
Slovak
Republic
accidents.
Part
publication
specification
sorbents,
part
evaluation
their
composition
description,
according
method
successive
laboratory
tests,
operating
fluid
that
applied
selected
sorbents.
After
test
resulting
values,
initial
absorbed
weight
were
determined.
capacity
absorbency
determined
from
values.
time
factor
ability
remove
adsorbed
solid
surfaces
evaluated
after
visualizing
process
final
result.
values
unified
compared
other
where
suitability
for
purposes
practice
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.
