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.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(12), P. e32894 - e32894
Published: June 1, 2024
This
study
investigated
the
novel
application
of
Fe–TiO2-allophane
catalysts
with
6.0
%
w/w
iron
oxide
and
two
TiO2
proportions
(10
30
w/w)
for
degrading
atrazine
(ATZ)
using
heterogeneous
dual-effect
(HDE)
process
under
sunlight.
Comparative
analyses
Fe-allophane
TiO2-allophane
were
conducted
in
both
photocatalysis
(PC)
HDE
processes.
FTIR
spectra
reveal
unique
hydrous
feldspathoids
structure
allophane,
showing
evidence
new
bond
formation
between
Si–O
groups
allophane
clays
hydroxyl
species,
as
well
Si–O–Ti
bonds
that
intensified
higher
content.
The
exhibited
an
anatase
structure.
In
catalysts,
was
incorporated
through
substitution
Ti4+
by
Fe3+
crystal
lattice
precipitation
on
surface
clays,
forming
small
particles.
Allophane
reduced
agglomeration
particle
size
TiO2,
resulting
enhanced
specific
area
pore
volume
all
catalysts.
Iron
incorporation
decreased
band
gap,
broadening
photoresponse
to
visible
light.
PC
process,
achieves
90
ATZ
degradation,
attributed
radical
species
from
UV
component
exhibit
synergistic
effects,
particularly
achieving
100
degradation
85
COD
removal,
shorter
reaction
time
percentage
increased.
performed
less
acidic
conditions,
complete
after
6
h
without
leaching.
Consequently,
are
proposed
a
promising
alternative
emerging
pollutants
environmentally
friendly
conditions.
Physical Sciences Reviews,
Journal Year:
2024,
Volume and Issue:
9(11), P. 3509 - 3528
Published: May 6, 2024
Abstract
Emerging
contaminants
are
the
outcome
of
widespread
usage
manufacturing
advancements
facilitating
human
life.
These
found
in
various
solid
and
liquid
wastes
discharged
into
nature.
Sewage
treatment
plants
across
globe
receive
a
maximum
quantity
emerging
from
diverse
sources.
reach
soil,
surface,
groundwater,
affecting
their
quality.
They
also
enter
food
web
through
different
levels.
This
article
thoroughly
discusses
adverse
effects
possible
methods
remediation
using
activated
carbon
prepared
materials.
The
review
highlights
utilization
for
pharmaceutical
personal
care
products,
pesticides,
specific
observation
caffeine
removal.
An
in-depth
online
search
research
articles
gave
an
overview
technologies
used
reports
with
reference
to
applicability
as
adsorbent
contaminants.
Adsorption
is
considered
be
one
green
methodologies
reducing
contamination
making
resultant
water
reusable
Biowaste
materials
preparation
by
chemical
or
physical
modifications.
adsorbents
can
removing
wastewater/contaminated
water.
Many
advantages
this
method
make
it
suitable
effluent
generated
quality,
surface
area
adsorption,
kinetics
significance
ensure
quality
efficiency
adsorbent.
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: Aug. 8, 2024
Abstract
Hydrochar
from
waste
biomass
is
a
promising
material
for
removing
emerging
contaminants
(e.g.,
antibiotics)
in
water/soil
environment.
Abundant
small-sized
hydrochar
particles
(HPs)
with
high
content
of
reactive
functional
groups
and
mobility
are
easily
released
into
ecosystems
through
applications.
However,
the
photodegradation
ability
corresponding
structures
HPs
largely
unknown,
which
hinder
accurate
estimation
remediation
effect
ecosystems.
Herein,
performance
HP
towards
targeted
norfloxacin
(NOR,
typical
antibiotic)
under
light
irradiation
(visible
UV
light)
were
investigated
after
adsorption
processes
upon
release
soil/water,
its
species
photoactive
clarified
compared
those
residual
bulk
(BH)
comprehensively.
The
results
showed
that:
(1)
percentages
4.02
4.48
times
higher
than
BHs
visible
light,
both
·OH
·O
2
−
;
(2)
density
theory
(DFT)
identified
that
main
structure
graphitic-N
decreased
energy
gap
(Eg)
HPs,
C=O,
COOH
improved
electron
donating
BHs;
(3)
well-developed
graphitization
resulted
polymerization
reaction
was
an
significant
involving
superior
relative
to
BH.
distinct
heterogeneities
BH
underlying
provide
in-depth
understanding
application
soil/water
Identifying
helpful
predict
according
their
abundance.
Graphical
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.
