Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
The
escalating
utilization
of
dyes
and
the
subsequent
discharge
dye
wastewater
have
resulted
in
severe
pollution,
necessitating
urgent
development
innovative
treatment
technologies.
This
article
presents
design
a
novel
catalyst
comprising
brucite
loaded
with
nitrogen-deficient
carbon
nitride
nanosheets
(FBCN)
to
activate
PMS
for
degradation
MB
wastewater.
effects
brucite-to-urea
ratio,
dosage,
concentration,
pH
value,
reaction
temperature,
natural
organic
matter
anions,
reusability
on
were
investigated.
Under
optimal
conditions,
12.5%FBCN/PMS
system
achieved
complete
(100%)
10
mg/L
within
5
min,
significant
improvement
compared
FB-600/PMS
g-C3N4/PMS
systems.
enhanced
catalytic
activity
can
be
attributed
interaction
between
hydroxyl
groups
surface
amine
derived
from
urea,
which
accelerates
formation
double
nitrogen
defects
(N
vacancies
cyano
groups)
g-C3N4
thereby
greatly
enhancing
activation
efficiency.
In
addition,
excellent
performance
12.5%FBCN
originated
its
unique
combination
enhance
electron
transfer
g-C3N4.
also
generates
singlet
oxygen
radicals
(1O2),
(·OH),
sulfate
(SO4·-),
among
1O2
is
identified
as
being
predominantly
responsible
degradation.
study
offers
new
approach
designing
efficient
activators
environmental
remediation.
Metals,
Journal Year:
2025,
Volume and Issue:
15(5), P. 531 - 531
Published: May 8, 2025
Leaching
represents
a
significant
challenge
for
the
mining
industry
due
to
its
slow
and
incomplete
kinetics
under
ambient
conditions
(20
°C,
1
atm)
increased
prevalence
in
global
ore
deposits.
In
this
context,
use
of
hydrogen
peroxide
(H2O2)
has
proved
be
promising
oxidizing
agent
improving
process
efficiency.
This
article
reviews
most
recent
breakthroughs
H2O2
chalcopyrite
leaching,
analyzing
experimental
that
maximize
copper
extraction,
including
combinations
with
novel
leachants
such
as
organic
systems,
inorganic
salts,
amino
acids.
addition,
main
challenges
associated
H2O2,
catalytic
decomposition
thermal
stability,
are
highlighted,
along
strategies
overcome
these
limitations.
Perspectives
application
presented,
emphasizing
need
hybrid
optimized
approaches
integrate
sustainable
hydrometallurgical
processes.
The
objective
paper
is
make
an
exhaustive
review
what
been
published
on
leaching
order
find
ways
leach
it
large
quantities
simple
way.
