ACS Applied Bio Materials,
Год журнала:
2023,
Номер
6(11), С. 4645 - 4661
Опубликована: Ноя. 8, 2023
The
use
of
agro-waste
extracts
(AWEs)
as
a
sustainable
medium
for
developing
cost-effective
and
ecologically
friendly
nanomaterials
has
piqued
the
interest
current
researchers.
Herein,
waste
from
papaya
barks,
banana
peels,
thumba
plants,
snail
shells
were
used
synthesizing
ZnO
nanostructures
via
hydrothermal
method,
followed
by
calcination
at
400
°C.
crystallinity
pure
wurtzite
phase
formation
confirmed
X-ray
diffraction.
with
various
morphologies
such
tight
sheet-like,
spherical,
porous
bracket-shaped,
comprising
small
interconnected
particles
highly
catalytically
active
exposed
(0001)
facet,
observed
field
emission
scanning
electron
microscopy
transmission
microscopy.
mechanism
was
proposed.
Ultraviolet-visible
spectra
showed
different
absorption
band
edges
bandgap
in
range
3.17-3.27
eV.
Photoluminescence
studies
presence
defect
states
oxygen
zinc
vacancies
interstitials
on
nanostructures,
which
are
usually
traditionally
prepared
ZnO.
photocatalytic
activity
evaluated
under
direct
sunlight
using
rhodamine
B
(RhB)
Congo
red
(CR)
dyes
probe
pollutants.
Furthermore,
could
potentially
adsorb
anionic
(e.g.,
CR)
absence
light.
Superoxide
hydroxide
radicals
played
vital
role
photocatalyst
be
reused
up
to
three
cycles,
indicating
its
stability.
Therefore,
this
study
reports
diverse
AWEs
media
nanomaterial
synthesis.
ACS Sustainable Resource Management,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 20, 2025
In
this
study,
an
efficient
and
convenient
three-component
cyclization
protocol
is
presented
for
the
synthesis
of
xanthene
derivatives
using
a
water
extract
red
mud
(WERM).
Red
produced
in
large
quantities
as
waste
aluminum
industries,
first
report
to
use
WERM
renewable
medium
xanthenes.
We
focused
our
attention
on
domino
condensation/Michael
addition/intramolecular
both
experimentally
density
functional
theory
(DFT)
studies,
where
formation
chromenopyrimidines
was
suppressed
simultaneously.
Furthermore,
innovation
operates
straightforward
cost-effective
manner,
accommodates
numerous
groups,
encompasses
broad
range
substrates,
produces
exceptional
yields,
eliminates
need
column
chromatography,
enables
scalable
syntheses,
allows
reusability
reaction
media,
all
which
contribute
principles
green
sustainable
chemistry.
Green Chemistry Letters and Reviews,
Год журнала:
2021,
Номер
14(4), С. 700 - 712
Опубликована: Окт. 2, 2021
Utilization
of
waste-derived
materials
for
industrially
pertinent
chemical
transformations
is
highly
challenging
and
offers
sustainable
solution
to
waste
management.
Despite
several
difficulties
in
the
manufacture
aryl
iodides
(AIs),
which
are
fundamental
substrates
organic
synthesis,
we
report
here,
an
added
oxidant/metal/catalyst/additive
problematic
solvent-free
versatile
straightforward
protocol
synthesis
AIs
using
molecular
iodine
(I2)
water
extract
pomegranate
ash
(WEPA).
These
were
performed
at
room
temperature
(rt)
reactions
takes
place
5–20
min
give
83–99%
yields
AIs.
WEPA
was
characterized
by
XPS,
EDX,
XRF,
XRD,
FTIR
analysis
a
plausible
mechanism
has
been
established
based
on
these
analyses
along
with
some
control
experiments.
Further,
products
purified
recrystallization
technique.
This
work
intrinsic
sustainability,
high
substrate
feasibility,
utilization
biorenewable
catalystytic
media,
ease
execution
separation
products,
oxidant/catalyst/metal
additive-free
conditions
may
become
one
among
forefront
procedures
making
The
use
as
media
this
iodination
novelty
method
be
used
further
in-process
(e.g.
cross-couplings,
nucleophilic
reactions,
etc.)
access
fine
chemicals.
Sustainability,
Год журнала:
2022,
Номер
14(15), С. 9674 - 9674
Опубликована: Авг. 5, 2022
The
management
of
solid
waste
is
currently
seen
as
one
the
most
important
concerns
that
national
authorities,
particularly
in
south
Europe,
must
address.
In
recent
years,
emphasis
has
begun
to
be
paid
Construction
and
Demolition
Waste
(CDW)
being
largest
stream
European
Union
produced
by
renovation
repair
work
on
buildings,
roads,
bridges,
other
constructions
made
bulky
materials
such
asphalt,
bricks,
wood,
plastic.
Many
EU
countries
responded
quickly
a
result
large
amounts
presence
hazardous
substances
their
composition.
This
study
illustrates
anticipated
outcomes
several
CDW
strategies
than
final
disposal,
recycling,
reuse,
incineration,
for
public-school
building
Greece.
order
assess
how
well
chosen
schemes
performed
terms
various
environmental
criteria,
SimaPro
software
suite
Ecoinvent
v.3
Life
Cycle
Inventory
database
were
used.
enhance
quality
outcomes,
inventory
data
from
earlier
studies
also
employed
input
Assessment
tool.
ACS Applied Bio Materials,
Год журнала:
2023,
Номер
6(11), С. 4645 - 4661
Опубликована: Ноя. 8, 2023
The
use
of
agro-waste
extracts
(AWEs)
as
a
sustainable
medium
for
developing
cost-effective
and
ecologically
friendly
nanomaterials
has
piqued
the
interest
current
researchers.
Herein,
waste
from
papaya
barks,
banana
peels,
thumba
plants,
snail
shells
were
used
synthesizing
ZnO
nanostructures
via
hydrothermal
method,
followed
by
calcination
at
400
°C.
crystallinity
pure
wurtzite
phase
formation
confirmed
X-ray
diffraction.
with
various
morphologies
such
tight
sheet-like,
spherical,
porous
bracket-shaped,
comprising
small
interconnected
particles
highly
catalytically
active
exposed
(0001)
facet,
observed
field
emission
scanning
electron
microscopy
transmission
microscopy.
mechanism
was
proposed.
Ultraviolet-visible
spectra
showed
different
absorption
band
edges
bandgap
in
range
3.17-3.27
eV.
Photoluminescence
studies
presence
defect
states
oxygen
zinc
vacancies
interstitials
on
nanostructures,
which
are
usually
traditionally
prepared
ZnO.
photocatalytic
activity
evaluated
under
direct
sunlight
using
rhodamine
B
(RhB)
Congo
red
(CR)
dyes
probe
pollutants.
Furthermore,
could
potentially
adsorb
anionic
(e.g.,
CR)
absence
light.
Superoxide
hydroxide
radicals
played
vital
role
photocatalyst
be
reused
up
to
three
cycles,
indicating
its
stability.
Therefore,
this
study
reports
diverse
AWEs
media
nanomaterial
synthesis.
