MoS2
and
MgO
co-modified
biochar
with
S-doping
(MoS2-MgO/S-BC)
was
prepared
for
facilitating
the
adsorption-photocatalysis
towards
tetracycline
hydrochloride
(TCH)
elimination
under
solar-light
irradiation.
MoS2-MgO/S-BC
had
better
adsorption-photocatalytic
activity
in
comparison
to
S-BC,
b-MgO/S-BC,
2-MoS2/S-BC,
its
removal
efficiency
intensively
affected
by
loading
contents.
The
experimental
factors
such
as
bulk
dosage,
TCH
concentration,
inorganic
salts,
pH
also
influenced
capacity
of
MoS2-MgO/S-BC.
highest
adsorption
(239.52
mg
g-1)
(93.70%)
were
obtained
optimal
2b-MoS2-MgO/S-BC
200
L-1
solution
within
120
min.
process
well
described
Langmuir
isotherm
second-order
model.
boosted
performance
ascribed
abundant
vacant
sites
generated
from
functional
groups
S-doped
lattice
defects
MgO,
efficient
separation
migration
photoinduced
e-/h+
at
junction
interface
among
MoS2,
S-BC.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Defining
the
active
sites
and
further
optimizing
their
activity
are
of
great
significance
for
enhancing
hydrogen
evolution
reaction
(HER)
performances,
especially
inexpensive
Ni-based
catalysts
doped
with
metals
nonmetal
elements.
This
work
reports
role
incorporated
molybdenum
sulfur
in
HER
nickel.
The
prepared
coincorporated
Ni
(NMS)
electrocatalysts
exhibit
excellent
performance,
an
overpotential
Tafel
slope
77.0
mV
(10
mA·cm-2)
64.4
mV·dec-1,
respectively,
because
large
electrochemically
surface
area,
quick
kinetics,
charge-transfer
capability.
theoretical
calculation
results
reveal
that
Mo
atoms
play
sites,
introduced
S
can
enhance
atom.
high
atom
be
attributed
to
regulated
d-band
center
by
composition
NMS,
which
tunes
interaction
between
intermediate
species.
elucidated
mechanism
make
it
possible
design
nonmetals
efficient
evolution.
Biochar
is
the
promising
material
for
environmental
remediation
because
of
its
adsorption
and
photocatalytic
activity.
To
further
boost
adsorption-photocatalytic
performance
biochar
in
RhB
removal,
CuInS2
MgO
were
applied
to
modify
S-doped
(CIS-Mg/S-BC)
via
one-pot
approach.
The
photo-induced
electrons
holes
efficiently
separated
migrated
at
junction
interface
among
CuInS2,
MgO,
biochar,
enlarging
visible
light
absorption
conversion
harmless
products.
functional
groups
active
sites
CIS-Mg/S-BC
favored
adsorption.
Langmuir
second-order
models
well
described
isotherms
kinetics
S-BC-based
hybrids,
respectively.
presented
higher
activity
than
S-BC,
d-Mg/S-BC
2-CIS/S-BC
visible-light
region.
best
removal
efficiency
over
2d-CIS-Mg/S-BC
400
mg
L-1
solution
was
97.67%
within
120
min
while
reduced
95.62%
after
five
cycles,
estimated
qe
model
800.37
g-1.
