Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 13, 2024
This
study
addresses
the
widespread
use
of
UV
filters
(UVFs)
in
cosmetic
and
solar
products
due
to
negative
effects
radiation,
particularly
relation
melanoma
risk.
While
these
offer
protection,
their
extensive
application
raises
concerns
about
environmental
health
impacts.
Organic
UVFs,
particular,
have
been
associated
with
endocrine
disruption
aquatic
species
coral
reef
damage.
To
mitigate
concerns,
regulatory
limits
imposed
on
certain
UVFs.
Current
analytical
techniques
for
UVF
determination,
such
as
HPLC-PDA
HPLC-MS/MS,
high
accuracy
but
are
expensive
lack
on-site
monitoring
capabilities.
In
response,
this
research
aims
develop
a
rapid
cost-effective
method,
utilizing
voltammetry
organic
quantification
complex
matrices
like
sunscreens.
Additionally,
HPLC-MS/MS
employed
electrochemical
methods
device
validation.
approach
not
only
need
efficient
analysis
also
provides
basis
compliance
stewardship
cosmetics
industry.
Current Opinion in Green and Sustainable Chemistry,
Journal Year:
2024,
Volume and Issue:
47, P. 100925 - 100925
Published: April 25, 2024
The
utilization
of
nanomaterials
in
biofuel
production
has
garnered
considerable
attention
owing
to
their
distinctive
characteristics,
including
a
high
surface-area-to-volume
ratio,
strong
dispersibility,
and
enhanced
reactivity.
This
review
delves
into
the
transformative
role
played
by
nanomaterials,
specifically
graphene-based
catalysts,
metal-organic
frameworks,
biomass
waste
materials,
carbon
nanotubes,
augmenting
various
facets
production.
Noteworthy
examples
include
application
metal-modified
graphene
oxide
composite
incorporating
aluminium
ferric,
revealing
significant
25%
reduction
free
fatty
acid
content
remarkable
15%
increase
methyl
hexadecanoic
yield.
Furthermore,
eco-friendly
synthesis
TiO2
nanoparticles
showcased
consistently
biodiesel
yields,
reaching
95%
over
10
cycles,
underscoring
its
economic
advantages
stability.
However,
it
is
essential
acknowledge
potential
drawbacks
associated
with
nanomaterial
Environmental
concerns,
such
as
nanoparticle
release
during
processes
impact
on
ecosystems,
well
safety
issues
related
exposure
nanoparticles,
require
careful
consideration.
comprehensive
overview
encompasses
recent
studies
green
synthesis,
hydrothermal-assisted
carbonization,
gold
hydrolysis,
nano-fuel
technology
engine
characteristics.
Innovations
catalysts
processes,
sulfonic
functionalized
frameworks
magnetic
MOF-derived
are
scrutinized
for
sustainability.
culminates
thorough
analysis
environmental
impacts,
accentuating
both
benefits
challenges
entailed
seamless
integration
nanotechnology
Water,
Journal Year:
2025,
Volume and Issue:
17(1), P. 85 - 85
Published: Jan. 1, 2025
Increasing
numbers
of
emerging
contaminants
(ECs)
detected
in
water
environments
require
a
detailed
understanding
these
chemicals’
fate,
distribution,
transport,
and
risk
aquatic
ecosystems.
Modeling
is
useful
approach
for
determining
ECs’
characteristics
their
behaviors
environments.
This
article
proposes
systematic
taxonomy
EC
models
addresses
gaps
the
comprehensive
analysis
applications.
The
reviewed
include
conventional
quality
models,
multimedia
fugacity
machine
learning
(ML)
models.
Conventional
have
higher
prediction
accuracy
spatial
resolution;
nevertheless,
they
are
limited
functionality
can
only
be
used
to
predict
contaminant
concentrations
Fugacity
excellent
at
depicting
how
travel
between
different
environmental
media,
but
cannot
directly
analyze
variations
parts
same
media
because
model
assumes
that
constant
within
compartment.
Compared
other
ML
applied
more
scenarios,
such
as
identification
assessments,
rather
than
being
confined
concentrations.
In
recent
years,
with
rapid
development
artificial
intelligence,
surpassed
becoming
one
newest
hotspots
study
ECs.
primary
challenge
faced
by
outcomes
difficult
interpret
understand,
this
influences
practical
value
an
some
extent.
Green Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
10, P. 100118 - 100118
Published: June 9, 2024
Conventional
analytical
methodologies
for
the
determination
of
organic
contaminants
in
water
matrices
are
often
laborious
and
time-consuming,
require
a
large
amount
chemicals.
In
this
study,
we
have
developed
green
sample
preparation
approach
using
Araucaria
angustifolia
bracts
as
natural
sorbent
bar
adsorptive
microextraction
technique.
The
eight
emerging
(methyl,
propyl,
butylparaben,
bisphenols
A
F,
estradiol,
ethinylestradiol,
benzophenone)
river-water
samples
were
carried
out,
employing
high-performance
liquid
chromatography
with
diode-array
detection
(HPLC-DAD).
Central
composite
design
revealed
that
best
conditions
extraction
step
involved
adding
30
%
(w/v)
NaCl
to
at
pH
6
leaving
it
180
min.
Simplex-centroid
indicated
80
μL
mixture
acetonitrile
(3:1)
desorption
solvent.
Desorption
time
was
univariately
evaluated
40
Calibration
curves
obtained
correlation
coefficients
higher
than
0.995.
limits
quantification
range
1
10
µg
L−1
inter-day
precision
from
13
22
%.
Relative
recoveries
two
varied
62
116
%,
exhibiting
relative
standard
deviations
5
28
which
confirmed
method's
accuracy
precision.
This
method
contributes
development
more
environmentally
friendly
strategies.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
319, P. 100574 - 100574
Published: July 1, 2024
Pharmaceutical
pollutants
in
wastewater
can
be
effectively
degraded
by
heterogeneous
photocatalytic
processes
(HPP);
under
light
irradiation,
these
methods
use
semiconductor
photocatalysts
to
produce
reactive
oxygen
species
(ROS),
which
oxidize
and
mineralize
organic
(OPs)
into
innocuous
byproducts.
Reactant
transport
the
photocatalyst
surface,
reactant
adsorption,
charge
carrier
formation
separation,
redox
reactions,
product
desorption
are
all
part
of
mechanisms.
This
review
article
analyzes
compares
various
approaches
used
prepare
photocatalysts.
The
composition,
morphology,
crystallinity,
production
scale,
influence
synthesis
technique
selection.
While
hydrothermal,
microwave-assisted,
sonochemical,
mechanochemical
provide
greater
variety
synthesising
diverse
with
varying
compositions,
morphologies,
surface
characteristics,
flame
hydrolysis
is
appropriate
for
large-scale
TiO2
Because
it
regulates
photocatalyst's
charge,
electrolytic
solution's
pH
significant
processes.
Within
a
certain
range,
an
increase
temperature
generally
results
continuous
breakdown
efficacy;
beyond
that,
rate
decomposition
decreases.
These
findings
besides
giving
researchers
broad
overview
current
status
HP
process
we
believe
will
also
inform
its
future
applications
advancements.
