Food Chemistry X,
Год журнала:
2024,
Номер
24, С. 101992 - 101992
Опубликована: Ноя. 10, 2024
Salicylic
acid
(SA)
is
widely
used
in
food
storage,
preservatives,
additives,
healthcare,
and
the
pharmaceutical
industry.
However,
various
poisoning
symptoms
are
frequently
reported
upon
ingestion
of
a
large
amount
SA.
Therefore,
discovering
new
tools
for
sensing
SA
with
fast,
simple,
portable
performance
imperative.
Herein,
five
rhodamine-based
fluorescent
sensors
were
constructed,
investigated
their
detection
profiles.
Probe
Soil Systems,
Год журнала:
2025,
Номер
9(1), С. 18 - 18
Опубликована: Фев. 24, 2025
A
biochar
(BC)
generated
by
the
pyrogasification
of
wood
chips
from
authorized
forestry
cuts
was
extensively
characterized
and
evaluated
for
its
efficacy
in
retaining/releasing
two
agrochemicals,
namely
fungicide
penconazole
(PEN),
herbicide
S-metolachlor
(S-MET),
xenoestrogen
bisphenol
(BPA)
widely
present
industrial
effluents.
The
elemental
composition
BC
using
CN
analysis
total
reflection
X-ray
fluorescence
(TXRF)
spectroscopy
which
showed
abundance
elements
typically
found
BCs
(Ca,
K,
P)
along
with
essential
trace
such
as
Fe
Mn.
Scanning
electron
microscopy
coupled
energy-dispersive
(SEM-EDX)
described
surface
features
major
elements,
while
Brunauer–Emmett–Teller
(BET)
revealed,
expected,
a
large
specific
area
(366
m2
g−1).
High
porosity
(0.07
cm3
g−1)
demonstrated
density
functional
theory
(DFT)
method,
Fourier
transform
infrared
(FT-IR)
highlighted
presence
prominent
aromatic
structure
reactive
groups
responsible
binding
compounds.
sorption/desorption
capacity
studied
means
sorption
kinetics
isotherms
batch
trials,
modeling
experimental
data
various
theoretical
equations.
All
compounds
reached
equilibrium
on
very
rapidly,
following
preferentially
pseudo-second-order
kinetics.
Freundlich
adsorption
constants
PEN,
S-MET,
BPA
were
37.3,
13.2,
11.6
L
g−1,
respectively,
thus
demonstrating
great
affinity
hydrophobic
pollutants.
process
hysteretic
only
small
fraction
each
compound
slowly
desorbed
BC.
overall
results
obtained
potential
acting
biosorbent
contaminants,
is
importance
containment
pollution
agricultural
soils
limiting
entry
toxic
into
human
animal
food
chain.
