Nanomaterials,
Journal Year:
2023,
Volume and Issue:
14(1), P. 74 - 74
Published: Dec. 26, 2023
In
this
work,
the
heterojunctions
of
CuInS2
embedded
in
g-C3N4
materials
(xCuInS2/g-C3N4,
abbreviated
as
xCIS/GCN)
was
successfully
prepared
for
peroxymonosulfate
(PMS)
activation
under
visible
light.
The
catalysts
are
characterized
by
different
techniques,
such
XRD,
FTIR,
SEM,
TEM,
and
UV-vis.
unique
heterojunction
composites
can
suppress
recombination
photogenerated
pairs.
catalytic
results
showed
that
3CIS/GCN
exhibited
excellent
levofloxacin
(LVF)
degradation
efficiency,
while
more
than
98.9%
LVF
removed
60
min
over
a
wide
pH
range.
SO4•−,
O2•−,
OH•,
1O2
were
verified
main
reactive
species
via
quenching
experiments
electron
paramagnetic
resonance
technology
(EPR).
synergetic
effect
xCIS/GCN,
PMS,
light
irradiation
discussed.
possible
pathway
proposed
through
byproducts
analysis
(LC-MS).
Moreover,
3CIS/GCN/vis-PMS
system
has
very
low
metal
leaching.
Owing
to
xCIS/GCN
having
good
properties
PMS
activation,
it
potential
applications
or
other
hazardous
pollutants
degradation.
Water,
Journal Year:
2024,
Volume and Issue:
16(18), P. 2606 - 2606
Published: Sept. 14, 2024
The
convergence
of
antibiotic
contamination,
antimicrobial
resistance
(AMR),
and
climate
dynamics
poses
a
critical
environmental
public
health
challenge.
Freshwater
ecosystems
are
increasingly
threatened
by
the
persistent
presence
antibiotics,
which,
coupled
with
rising
global
temperatures,
accelerate
development
spread
AMR.
This
review
examines
sources,
pathways,
mechanisms
through
which
antibiotics
enter
freshwater
systems
how
change
exacerbates
these
processes.
discusses
this
convergence’s
ecological
human
impacts,
highlighting
implications
for
biodiversity
health.
It
also
explored
current
monitoring
mitigation
strategies,
including
advanced
oxidation
processes,
natural-based
solutions,
policy
interventions.
Finally,
identifies
research
gaps
proposes
future
directions
managing
intertwined
threats
resistance,
change.
emphasizes
need
integrated,
multidisciplinary
approaches
to
protect
resources
in
an
volatile
environment.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
931, P. 172891 - 172891
Published: May 1, 2024
Wastewater
recycling
technologies
are
developed
in
areas
where
the
necessity
of
water
resources
cannot
be
satisfied
by
natural
sources.
Nevertheless,
nowadays
trends
and
European
Union
Plans
show
an
increasing
interest
on
using
these
to
reduce
environmental
impacts.
This
manuscript
aims
address
question
real
results
differences
between
each
specific
case
Life
Cycle
Assessment
(LCA)
methodology.
A
study
is
analyzed
answer
this
question:
integral
cycle
a
northern
Spain,
comparing
traditional
supply
system
(system
I),
alternative
wastewater
regeneration
plant
II).
System
II
presents
higher
impact
for
all
categories
(between
1.2
37
times
higher),
except
land
use,
it
reduced
53
%.
These
larger
produced
due
energy
chemical
product
consumption.
Energy
consumption
main
factor
causing
highest
most
both
studied
systems,
including
one
associated
resource
It
accounts
at
least
50
%
total
7
16
evaluated
categories.
In
terms
climate
change,
not
particularly
significant
I,
but
II,
represents
around
that
impact.
determined
consumption,
waste
discharge
treatment
relevant
factors.
sense,
paper
highlights
importance
analysing
specifically
underscores
usefulness
LCA
methodology
as
tool
improve
decision-making
management,
with
emerging
crucial
focal
point.
Sustainable materials and technologies,
Journal Year:
2024,
Volume and Issue:
41, P. e01002 - e01002
Published: June 3, 2024
This
study
is
the
first
environmental
comparison
between
a
UV-C
LED
lamp
(emitting
at
265
nm)
and
mercury
lamps
employed
in
lab-scale
photoreactor
for
water
treatment
purification
purposes,
using
removal
of
diclofenac
as
case
study.
Ex-ante
life
cycle
assessment
(LCA)
methodology
was
used
robust
method
to
identify
hotspots
recommendations
early
stage
LEDs
technology.
The
functional
unit
defined
"the
1
L
polluted
with
20
mg
L-1
achieve
90%
contaminant",
while
system
boundaries
include
production
operation
photoreactors,
following
cradle-to-gate
approach.
Several
scenarios
were
explored,
overall,
shows
promising
performance,
less
or
similar
potential
impacts
than
16
categories
selected
from
Environmental
Footprint
(EF)
method.
In
particular,
it
reveals
impact
"human
toxicity
non-cancer"
"resource
use
minerals
metals"
presents
electricity
main
source
impact.
Given
higher
efficacy
UV-driven
advanced
oxidation
processes
compared
UV
irradiation
alone,
since
no
studies
have
previously
been
conducted
on
sustainability
free
chlorine
(FC)
an
oxidant
treatment,
UV-C,
UV-C/H2O2,
UV-C/FC
employing
nm
also
assessed.
UV-C/H2O2
more
sustainable
same
time,
but
both
led
overall
reduction
35%
30%,
respectively.
To
increase
sustainability,
cleaner
energy
sources
such
photovoltaic
wind
resulted
80%
93%
"climate
change"
category.
Overall,
this
demonstrates
that
oxidants
beneficial
encourages
scale-up
system.
