ABSTRACT
MgO
surface
makes
it
easy
to
introduce
a
certain
amount
of
oxygen
vacancy
and
can
enhance
catalytic
reaction
activity.
Besides,
as
silicoaluminate
mineral
material,
halloysite
nanotube
(HNT)
has
unique
tubular
structure.
In
this
paper,
the
HNTs@MgO
composite
was
successfully
synthesized
based
on
natural
clay
material
HNTs
carrier,
CTL
sensor
developed
for
rapid
determination
ether
in
air.
The
characterized
by
series
means
such
SEM,
XPS,
XRD,
which
clearly
confirmed
that
combined
with
HNTs.
And
showed
good
sensitivity
selectivity,
linear
relationship
between
intensity
concentration
range
0.5–190.0
mg/L
(
R
2
=
0.9942),
limit
detection
(LOD)
0.18
S/N
3).
RSD
values
results
11
consecutive
measurements
same
7
days
were
1.96%
n
11)
3.42%
7),
showing
repeatability
reproducibility.
At
last,
used
detect
air
samples,
recoveries
ranged
from
91.6%
109.6%.
Thus,
concluded
is
cost‐effective
promising
potential
application
atmospheric
detection.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(10), С. 5370 - 5370
Опубликована: Май 14, 2024
Recently,
fluorescent
sensors
have
gained
considerable
attention
due
to
their
high
sensitivity,
low
cost
and
noninvasiveness.
Among
the
different
materials
that
can
be
used
for
this
purpose,
carbon
dots
(CDs)
represent
valuable
candidates
applications
in
sensing.
These,
indeed,
are
easily
synthesized,
show
quantum
yield
highly
biocompatible.
However,
it
was
pointed
out
photoluminescence
properties
of
these
nanomaterials
strictly
dependent
on
synthetic
purification
methods
adopted.
The
presence
halloysite
nanotubes
(HNTs),
a
natural,
biocompatible
clay
mineral,
has
been
found
efficient
obtaining
small
monodispersed
CDs
without
long
tedious
techniques.
Herein,
we
report
comparison
pathways
halloysite-N-doped
(HNTs-NCDs)
could
biological
One
based
synthesis
N-doped
by
bottom-up
approach
HNTs’
surface
MW
pyrolysis
process;
other
one
post-modification
pristine
with
derivatives.
evaluation
best
route
performed
physico-chemical
It
led
formation
functional
groups
onto
surface.
This
evidence
also
translated
fluorescence
yields
existence
several
obtained
investigated
potentiometric
titrations.
Furthermore,
ability
synthesized
as
Fe3+
ions
detection
assessed
spectroscopic
measurements,
cellular
uptake
verified
confocal/fluorescence
microscopies
well.
Applied Clay Science,
Год журнала:
2024,
Номер
258, С. 107471 - 107471
Опубликована: Июнь 26, 2024
Clay
minerals
are
functional
materials
that
increasingly
used
to
develop
a
diverse
range
of
new
applications.
An
overview
current
applied
clay
research
can
be
obtained
by
analyzing
available
bibliographic
databases
identify
present-day
fields
and
trends.
Using
the
Web
Science®
software
like
EndNote™,
Bibliometrix,
"R"
(v4.3.1)
investigate
i)
topics
published
studies,
ii)
author
collaborations,
iii)
keyword
networks,
important
information
matrices
identified
for
core
journals
more
general
multidisciplinary
periodicals.
After
initial
screening
filtering,
8815
articles
were
selected
from
2021
2023,
nearly
4178
items
ten
years
back
(2011−2013).
A
step-by-step
method
dataset
quality
control
sorting
revealed
terms
related
adsorbents
(34%)
composite
material
formation
(over
∼55%)
most
common
in
recent
years.
Composite
frequently
researched
catalyst
support,
sensors,
coatings,
preservatives,
foundry,
drilling
fluids,
geotechnical
barriers,
fertilizers,
animal
feed
drug
delivery.
Environmental
remediation
had
highest
presence
among
adsorption
catalysis
contaminants,
particular,
wastewater
other
aqueous
medium.
Smectite,
kaolinite,
halloysite
continue
science.
Among
these,
has
gained
significant
popularity
over
last
years,
particularly
catalytic
delivery,
capture
storage
energy
CO2.
The
number
doubled
decade
due
increased
contributions,
especially
China,
Brazil,
India.
doubling
not
weakened
journals,
with
Applied
Science
still
publishing
papers.
This
analysis
provides
comprehensive
search
criteria
community
use
explore
deeper
into
trends
also
reapply
it
future
assessments.
