Journal of Materiomics,
Год журнала:
2024,
Номер
11(3), С. 100919 - 100919
Опубликована: Июль 27, 2024
In
addressing
the
severe
energy
crisis,
adopting
efficient
and
reliable
strategies
is
crucial.
Photocatalysis
technology,
utilizing
solar
to
convert
it
into
hydrogen,
offers
an
effective
pathway
alleviate
issues.
this
study,
we
have
successfully
developed
TiO2/CdSxSe1–x-Diethylenetriamine
(abbreviated
as
DETA)
nanocomposites
with
S-scheme
heterojunction
structure.
By
precisely
adjusting
value
of
x
(x
=
0,
0.25,
0.50,
0.75
or
1.00),
optimized
charge
transfer
process,
achieving
photocatalytic
hydrogen
evolution
reaction.
Specifically,
sample
containing
20%
(in
mass)
TiO2,
denoted
20-TO,
exhibited
best
activity.
particular,
activity
TiO2/CdS0.25Se0.75-DETA
20-TO/CS0.25E0.75)
reached
32.7
mmol·g–1·h–1,
maintaining
high
performance
over
ten
consecutive
cycles
(totaling
40
h).
We
used
electron
paramagnetic
resonance
(EPR),
ultraviolet-visible
diffuse
reflectance
spectroscopy
(UV-Vis
DRS),
femtosecond
transient
absorption
(fs-TAS)
theoretical
calculations
comprehensively
confirm
that
heterojunctions
in
all
conform
mechanism.
This
mechanism
provides
optimal
path
for
transfer.
Comparative
analysis
through
revealed
efficiency
between
TO
CS0.25E0.75
was
highest,
which
correlates
well
experimental
results
evolution.
innovative
enhances
new
technologies
its
Abstract
Photocatalysis
is
an
effective
technique
to
remove
antibiotic
residues
from
aquatic
environments.
Typical
metal
sulfides
like
Zn
3
In
2
S
6
have
been
applied
a
wide
range
of
photocatalytic
applications.
However,
there
are
currently
no
readily
accessible
methods
increase
its
antibiotic‐degrading
activity.
Here,
facile
hydrothermal
approach
developed
for
the
preparation
flower‐like
with
tunable
sulfur
lattice
defects.
Photogenerated
carriers
can
be
separated
and
transferred
more
easily
when
adequate
amount
Moreover,
defect‐induced
electronic
modulation
enhances
light
utilization
adsorption
properties.
The
modified
demonstrates
outstanding
degradation
activity
levofloxacin,
ofloxacin,
tetracycline.
This
work
sheds
on
exploring
defects
enhancing
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(6), С. 2954 - 2966
Опубликована: Янв. 30, 2024
Carbon
dioxide
(CO2)
cycloaddition
not
only
produces
highly
valued
cyclic
carbonate
but
also
utilizes
CO2
as
C1
resources
with
100%
atomic
efficiency.
However,
traditional
catalytic
routes
still
suffer
from
inferior
efficiency
and
harsh
reaction
conditions.
Developing
multienergy-field
technology
expected
offers
great
opportunity
for
satisfied
yield
under
mild
Herein,
Zn3In2S6
sulfur
vacancies
(Sv)
was
fabricated
the
assistance
of
cetyltrimethylammonium
bromide
(CTAB),
which
is
further
employed
photothermally
driven
first.
Photoluminescence
spectroscopy
photoelectrochemical
characterization
demonstrated
its
superior
separation
kinetics
photoinduced
carriers
induced
by
defect
engineering.
The
temperature-programmed
desorption
(TPD)
technique
indicated
excellent
Lewis
acidity–basicity
characters.
Due
to
combination
above
merits
photocatalysis
thermal
catalysis,
defective
Zn3In2S6-Sv
achieved
a
high
73.2%
at
80
°C
blue
LED
illumination
within
2
h
(apparent
quantum
0.468%
380
nm
monochromatic
light
36
mW·cm–2),
2.9,
2.0,
6.9
times
higher
than
that
in
dark
conditions
those
pristine
industrial
representative
tetrabutylammonium
(TBAB)
thermal-catalysis
process
same
conditions,
respectively.
synergistic
path
catalysis
discriminated
theoretical
calculation.
This
work
provides
new
insights
into
photothermal
ternary
metal
sulfides.
