Environmental Science Nano,
Год журнала:
2024,
Номер
11(3), С. 1245 - 1258
Опубликована: Янв. 1, 2024
Sustainable
synthesis
of
carbon
nanodots
(CNDs)
through
a
green
route
–
converting
beer
bagasse,
by-product
the
industry,
into
hydrochar
via
eco-friendly
hydrothermal
carbonization,
and
their
application
for
selective
detection
harmful
heavy
metal
ions.
ACS Sensors,
Год журнала:
2024,
Номер
9(2), С. 555 - 576
Опубликована: Фев. 2, 2024
Sensitive,
accurate,
and
reliable
detection
of
explosives
has
become
one
the
major
needs
for
international
security
environmental
protection.
Colloidal
quantum
dots,
because
their
unique
chemical,
optical,
electrical
properties,
as
well
easy
synthesis
route
functionalization,
have
demonstrated
high
potential
to
meet
requirements
development
suitable
sensors,
boosting
research
in
field
explosive
detection.
Here,
we
critically
review
most
relevant
works,
highlighting
three
different
mechanisms
based
on
colloidal
namely
photoluminescence,
electrochemical,
chemoresistive
sensing.
We
provide
a
comprehensive
overview
an
extensive
discussion
comparison
terms
sensor
parameters.
highlight
advantages,
limitations,
challenges
dot-based
sensors
outline
future
directions
advancement
knowledge
this
surging
field.
RSC Sustainability,
Год журнала:
2024,
Номер
2(4), С. 933 - 942
Опубликована: Янв. 1, 2024
An
integrated
approach
combining
thermal
and
electrochemical
technologies
for
the
valorization
of
agro-industrial
waste.
The
resulting
carbon
dots
(CDs)
show
fascinating
optical
properties,
enabling
their
application
as
fluorescent
chemical
probes.
Nanobiochar
is
an
advanced
nanosized
biochar
with
enhanced
properties
and
wide
applicability
for
a
variety
of
modern-day
applications.
can
be
developed
easily
from
bulk
through
top-down
approaches
including
ball-milling,
centrifugation,
sonication,
hydrothermal
synthesis.
also
modified
or
engineered
to
obtain
"engineered
nanobiochar"
nanocomposites
provides
many
fold
enhancements
in
surface
area
(0.4–97-times),
pore
size
(0.1–5.3-times),
total
volume
(0.5–48.5-times),
functionalities
over
biochars.
These
have
given
increased
contaminant
sorption
both
aqueous
soil
media.
Further,
nanobiochar
has
shown
catalytic
applications
sensors,
additive/fillers,
targeted
drug
delivery,
enzyme
immobilization,
polymer
production,
etc.
The
advantages
disadvantages
are
summarized
herein,
detail.
processes
mechanisms
involved
synthesis
contaminants
summarized.
Finally,
future
directions
recommendations
suggested.
Molecular Catalysis,
Год журнала:
2023,
Номер
544, С. 113182 - 113182
Опубликована: Апрель 29, 2023
Natural
raw
materials
such
as
biomass
and
plant
wastes
are
the
most
interesting
feedstocks
for
synthesis
of
carbonaceous
nanomaterials
due
to
their
high
availability,
environmental
compatibility,
affinity
with
Green
Chemistry
principles.
Carbon
dots
(CDs),
a
new
type
carbon
nanomaterials,
perform
an
important
role
in
this
matter
by
serving
development
environmentally
friendly
catalysts.
In
study,
CDs
were
synthesized
good
yields
using
electrochemical
bottom-up
starting
from
liquid
phase
that
is
separated
during
hydrothermal
carbonization
(HTC)
process
involving
orange
peel
waste
(OPW).
The
setup
was
also
optimized
synthesize
based
on
5-hydroxymethylfurfural,
which
represents
one
main
components
obtained
HTC.
comprehensive
optical
chemo-physical
characterization
samples
carried
out
several
techniques
SEM,
TEM,
XRD,
PL,
TGA,
FTIR,
highlighted
distinctive
morphological
microstructural
features.
successfully
employed
catalyse
Knoevenagel
condensation,
showing
excellent
results
terms
yield
reproducibility.
addition,
sustainable
nature
demonstrated
recycling
catalysts
up
five
cycles
without
significant
activity
loss.
RSC Sustainability,
Год журнала:
2023,
Номер
1(6), С. 1404 - 1415
Опубликована: Янв. 1, 2023
An
invasive
macroalga
biomass
was
valorised
by
hydrothermal
carbonization.
The
resultant
carbonaceous
materials
exhibited
efficient
adsorption
of
hazardous
organic
pollutants
in
water
due
to
their
favourable
physicochemical
and
textural
properties.
ACS Omega,
Год журнала:
2024,
Номер
9(25), С. 27085 - 27092
Опубликована: Июнь 11, 2024
Despite
a
variety
of
glucose
sensors
being
available
today,
the
development
nonenzymatic
devices
for
determination
this
biologically
relevant
analyte
is
still
particular
interest
in
several
applicative
sectors.
Here,
we
report
an
impedimetric,
enzyme-free
electrochemical
sensor
based
on
carbon
nanofibers
(CNFs)
functionalized
with
aromatic
diamine
via
simple
wet
chemistry
functionalization.
The
performance
chemically
modified
carbon-based
screen-printed
electrodes
(SPCEs)
was
evaluated
by
electrical
impedance
spectroscopy
(EIS),
demonstrating
high
selectivity
respect
to
other
sugars,
such
as
fructose
and
sucrose.
sensing
parameters
obtain
reliable
calibration
curve
selective
mechanism
are
discussed
here,
highlighting
novel
important
analyte.
Two
linear
trends
were
noted,
one
at
low
concentrations
(0–1200
μM)
from
1200
5000
μM.
limit
detection
(LOD),
calculated
(standard
error/slope)*3.3,
18.64
results
study
highlight
developed
glucose.
