Bulletin of the National Research Centre/Bulletin of the National Research Center,
Год журнала:
2025,
Номер
49(1)
Опубликована: Апрель 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.
Abstract
In
this
study,
we
report
on
the
hydrothermal
synthesis
of
MnO
x
‐anchored
carbon
spheres
as
an
effective
catalyst.
A
new
method
is
employed
to
prepare
from
cellulose.
Using
a
solvent‐free
process,
prepared
catalyst
used
convert
o‐cresol
salicylaldehyde.
Methods
including
XRD,
Raman
spectroscopy,
FE‐SEM,
EDS
mapping,
and
HR‐TEM
are
examine
structural
morphological
characteristics
It
confirmed
BET
analysis
that
doping
with
increases
surface
area
spheres.
At
standard
atmospheric
pressure,
conversion
salicylaldehyde
highly
selective
due
enhanced
active
sites
‐doped
Under
/CS
catalysts
show
excellent
efficiency,
yielding
96%
in
under
1
h.
This
study
underscores
feasibility
using
robust
for
controlled
oxidation
.
The
results
has
great
deal
activity
effectiveness,
well
being
cheap
reusable,
which
greatly
its
potential
real‐world
catalytic
applications.
Revista de Gestão Social e Ambiental,
Год журнала:
2025,
Номер
19(4), С. e011883 - e011883
Опубликована: Апрель 17, 2025
Objective:
This
systematic
review
aims
to
demonstrate
advances
in
scientific
research
developing
products
and
processes
that
use
agro-industrial
waste.
Theoretical
Framework:
Agro-industrial
waste
constitutes
an
abundant
economically
viable
source
of
raw
materials
can
be
recovered
reused,
contributing
the
sustainability
efficiency
industrial
processes.
Method:
Following
PRISMA
criteria,
CAPES
Journal
Portal
was
used
as
a
database,
using
descriptors
“agro-industrial
waste”
AND
“industrial
application”,
focusing
on
peer-reviewed
articles
published
English
between
2019
2023.
Fifty-five
resulted
from
search
thirty
met
our
strict
inclusion
reuse
for
subsequent
applications.
Results
Discussion:
Of
these,
16
component
growth
medium,
9
focused
recovery
immobilization
different
compounds
5
were
product
development.
shows
has
great
potential
sustainable
low-cost
materials.
The
flexibility
their
application
allows
them
most
varied
sectors,
such
cosmetics,
pharmaceuticals,
chemicals,
biologicals.
Research
Implications:
these
byproducts
not
only
minimizes
generation
but
also
promotes
development
processes,
aligning
with
principles
circular
economy
industry.
approach
transforms
environmental
challenges
into
opportunities,
encouraging
practices
benefit
both
production
sector
environment.
Originality/Value:
relevance
value
this
are
underscored
by
transformation
previously
considered
disposable,
positively
impacting
across
various
fields,
chemicals.
Processes,
Год журнала:
2024,
Номер
12(9), С. 2024 - 2024
Опубликована: Сен. 20, 2024
The
activated
carbons
(ACs)
derived
from
okara
powder
waste
with
high
surface
areas
were
modified
ammonia
aqueous
solution
impregnation
in
an
autoclave
to
enhance
their
CO2
adsorption
properties.
impregnated
ACs
characterized,
where
the
chemical
composition
and
properties
of
analyzed
by
SEM-EDX
FTIR.
Activated
functionalized
(25%)
through
a
hydrothermal
process
within
24,
48,
72
h.
performance
onto
carbon
samples
was
experimentally
evaluated
TPD
measurement.
FTIR
spectra
confirm
N-containing
N-modified
presence
–C=O
stretch
N-H
groups.
uptakes
are
0.24;
1.78;
2.24;
1.26
mmol/g,
which
relatively
comparable
those
studied
literature.
