ACS Omega,
Год журнала:
2023,
Номер
8(21), С. 18901 - 18914
Опубликована: Май 15, 2023
Silver
nanoparticles
(Ag-NPs)
exhibit
vast
potential
in
numerous
applications,
such
as
wastewater
treatment
and
catalysis.
In
this
study,
we
report
the
green
synthesis
of
Ag-NPs
using
Acacia
ehrenbergiana
plant
cortex
extract
to
reduce
cationic
Rhodamine
B
(RhB)
dye
for
antibacterial
antifungal
applications.
The
involves
three
main
phases:
activation,
growth,
termination.
shape
morphologies
prepared
were
studied
through
different
analytical
techniques.
results
confirmed
successful
preparation
with
a
particle
size
distribution
ranging
from
1
40
nm.
used
heterogeneous
catalyst
RhB
aqueous
solutions
presence
sodium
borohydride
(NaBH4).
showed
that
96%
catalytic
reduction
can
be
accomplished
within
32
min
20
μL
0.05%
suspension
100
mM
solution,
2
mL
deionized
water,
10
NaBH4
solution.
followed
zero-order
chemical
kinetic
(R2
=
0.98)
reaction
rate
constant
k
0.059
mol
L-1
s-1.
Furthermore,
agents
against
16
Gram-positive
Gram-negative
bacteria
well
fungus.
is
environmentally
friendly
inexpensive,
yields
highly
stabilized
by
phytochemicals.
substantial
reductions
antimicrobial
activity
reflect
novelty
Ag-NPs.
These
entrench
effectively
remove
microorganisms
polluted
water.
Crystals,
Год журнала:
2023,
Номер
13(2), С. 163 - 163
Опубликована: Янв. 17, 2023
Substantial
improvement
is
needed
in
efficient
and
affordable
decolorization
disinfection
methods
to
solve
the
issues
caused
by
dyes
harmful
bacteria
water
wastewater.
This
work
involves
photocatalytic
degradation
of
methylene
blue
(MB)
as
well
gram-negative
gram-positive
cobalt-doped
tin
oxide
(Co-SnO2)
nanoparticles
(NPs)
Co-SnO2/SGCN
(sulfur-doped
graphitic
carbon
nitride)
nanocomposites
(NCs)
under
sunlight.
The
coprecipitation
approach
was
used
synthesize
photocatalysts.
Maximum
seen
with
7%
Co-SnO2
NPs
compared
other
(1,
3,
5,
9
wt.%)
NPs.
were
then
homogenized
different
amounts
(10,
30,
50,
70
weight
%)
sulfur-doped
nitride
(SGCN)
develop
heterostructures
most
significant
degree
MB
degradation.
synthesized
samples
identified
modern
characterization
such
FT-IR,
SEM,
EDX,
UV-visible,
XRD
spectroscopies.
Co-SnO2/50%
SGCN
composites
showed
a
increase
degraded
96%
after
150
min
sunlight
irradiation.
Both
(E.
coli)
(B.
subtiles)
bacterial
strains
subjected
antibacterial
activity.
All
shown
have
vigorous
activity
against
bacteria,
but
exhibited
maximum
bactericidal
action.
Thus,
proposed
NC
an
organic/inorganic
photocatalyst
that
recyclable
stable
without
lowering
efficiency.
Hence,
SGCNNC
has
potential
be
employed
treatment
dual-functional
material
simultaneously
removes
organic
pollutants
eradicates
bacteria.
Applied Organometallic Chemistry,
Год журнала:
2023,
Номер
37(7)
Опубликована: Апрель 20, 2023
Water
is
the
source
of
life.
But
unfortunately,
80%
wastewater
discharged
into
aquatic
body
untreated
globally,
which
industry
responsible
for
70%
such
water
abstraction
through
discharge
pollutants
like
methyl
orange.
According
to
WWAP,
pollution
kills
100
million
individuals,
2
marine
animals,
and
seabirds
yearly,
by
2025,
it
forecasted
that
~1000
inhabitants
in
arid
zones
will
experience
severe
crisis,
thus,
security
has
become
focal
outcry
due
daily
environmental
escalation
caused
rapid
growth
industries
population.
Recently,
biosynthesized
nanoparticles
as
photocatalysts
have
answered
call
sustainable
treatment
orange
dye
effluent
photodegradation
because
their
efficient
photoactivity,
inexpensiveness,
eco‐benignness.
In
this
review,
photocatalytic‐degradation
mechanism
pathways
environment
presence
•
OH
−
O
using
green
were
mechanistically
discussed.
The
highest
degradation
efficiency
was
found
be
100%,
final
mineralization
products
H
CO
,
least
time
taken
min
with
silver
being
most
commonly
used
degrader
plant
extracts
employed
bioreductant
biosynthesis
nanoparticles.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Янв. 11, 2024
Abstract
The
current
study
reported
a
facile
co-precipitation
technique
for
synthesizing
novel
NiCo
2
S
4
/chitosan
nanocomposite.
photocatalytic
activity
of
the
prepared
nanocomposite
was
evaluated
using
congo
red
(CR)
dye
as
target
pollutant.
central
composite
design
employed
to
examine
impact
different
reaction
conditions
on
CR
degradation.
This
selected
pH,
photocatalyst
loading,
initial
concentration
and
time
parameters,
while
degradation
efficiency
(%)
response.
A
desirability
factor
1
suggested
adequacy
model.
Maximum
93.46%
35
ppm
solution
observed
after
60
min
visible
light
irradiation.
response
surface
methodology
(RSM)
is
helpful
predict
optimum
photodegradation
dye.
Moreover,
/Ch
displayed
high
recyclability
reusability
up
four
consecutive
cycles.
present
suggests
that
could
prove
be
viable
treatment
dye-contaminated
wastewater.
