Molybdenite
(MoS2)
has
garnered
significant
interest
within
the
realm
of
advanced
materisls.
In
order
to
address
issue
insufficient
capture
capacity
traditional
collectors
for
ultrafine
molybdenite
(-20
μm),
this
study
investigated
effect
and
mechanism
NDM-KE,
a
composite
agent
consisting
1-Dodecanethiol
(NDM)
kerosene
(in
1:1
mass
ratio),
on
floatability
molybdenite.
The
flotation
performance
was
explored
through
micro-flotation
tests,
action
elucidated
using
zeta
potential,
contact
angle
X-ray
photoelectron
spectroscopy
(XPS),
density
functional
theory
(DFT)
calculations.
results
tests
demonstrated
that
NDM-KE
significantly
enhanced
molybdenite,
particularly
particles.
Zeta
potential
measurements
indicated
greatly
improved
hydrophobicity
surface,
with
more
pronounced
μm).
XPS
analysis
revealed
NDM
chemically
adsorbed
onto
surfaces
-SH
groups.
DFT
calculations
adsorption
dodecane
edges
hindered
by
competitive
water
molecules.
exhibited
preferential
affinity
(Eads
=
-505.54
kJ/mol),
while
showed
faces
-349.96
kJ/mol).
Furthermore,
strongly
interacted
hybridization
S
3p
orbital
Mo
4d
form
high
ionicity
bonds.
As
result,
could
improve
Ultrasonics Sonochemistry,
Journal Year:
2025,
Volume and Issue:
114, P. 107237 - 107237
Published: Jan. 19, 2025
High-efficiency
dezincification
from
waste
galvanized
iron
sheets
is
crucial
for
resource
recovery
and
environmental
protection.
In
this
work,
ultrasound-assisted
acid
pickling
ion
flotation
techniques
were
combined
to
intensify
the
Zn
extraction
separation
sheets.
The
effects
of
leaching
parameters
on
rate
Fe,
kinetics
electrochemistry
compared
between
conventional
ultrasonic-assisted
leaching.
It's
demonstrated
that
ultrafast
realized
as
time
can
be
reduced
10
min
60
s
with
ultrasound
assistance,
Fe
rates
are
99.9
%
0.02
%,
respectively.
Ion
was
adopted
recover
circulated
solution
using
sodium
dodecyl
benzene
sulfonate
(SDBS)
collector.
After
flotation,
powdery
ZnO
size
distribution
1-3
μm
prepared
froth
product
after
calcining
at
600
℃
2
h.
addition,
various
characterizations
involving
thermodynamics,
XRD,
XPS,
SEM-EDS,
TG-DSC,
FTIR
analyses
employed
elucidate
mechanisms
underlying
enhancement
dissolution
through
assistance
capture
mechanism
via
flotation.
Eventually,
combination
achieve
rapid
selective
sheet
fast
leachate,
which
provide
technical
reference
utilization
other
metal
coating
plates.
