Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(14), P. 6546 - 6554
Published: March 27, 2024
Znln2S4
has
great
prospects
for
photocatalytic
water
splitting
to
hydrogen
by
visible
light.
Herein,
a
novel
Znln2S4–In-MOF
(ZnInMS4)
photocatalyst
is
elaborately
synthesized
in
situ
method
with
In-MOF
as
the
template
and
In3+
source.
ZnInMS4
overcomes
fast
interface
charge
recombination
sluggish
lifetime
via
formed
heterojunctions.
Photoelectrochemical
measurements
reveal
that
charge-transfer
kinetics
enhanced
since
introduced
act
reliable
charge-transport
channel.
exhibits
outstanding
cocatalyst-free
H2
evolution
rate
of
70
μmol
h–1
under
irradiation
(λ
>
420
nm),
which
3.2-fold
higher
than
Znln2S4.
In
addition,
shows
good
stability
16
h
continuous
reaction.
This
work
illustrates
feasibility
MOF
precursor
instead
inorganic
salts
directly
synthesize
photocatalysts
high
performance.
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(8), P. 4514 - 4530
Published: Feb. 13, 2024
Photocatalytic
hydrogen
production
and
pollutant
degradation
using
a
heterogeneous
photocatalyst
remains
an
alternative
route
for
mitigating
the
impending
pollution
energy
crisis.
Hence,
development
of
cost-effective
environmentally
friendly
semiconducting
materials
with
high
solar
light
captivation
nature
is
imperative.
To
overcome
this
challenge,
α-MnO2
nanorod
(NR)-modified
MOF
UiO-66-NH2
(UNH)
was
prepared
via
facile
solvothermal
method,
which
efficient
toward
H2
evolution
oxy-tetracycline
hydrochloride
(O-TCH)
degradation.
The
field-emission
scanning
electron
microscopy
(FESEM)
high-resolution
transmission
(HR-TEM)
results
α-MnO2@UNH
(MnU)
hybrid
reveals
its
embedded
in
matrix,
X-ray
photoelectron
spectroscopy
(XPS)
result
confirms
interaction
UNH
moiety
NRs.
Additionally,
outstanding
separation
photogenerated
excitons
charge-transfer
efficacy
are
further
validated
by
photoluminescence
(PL),
time-resolved
(TRPL),
electrochemical
impedance
(EIS),
transient
photocurrent
analysis,
key
causes
photoactivity
augmentation
MnU
composites.
MnU-2
composite
shows
superior
O-TCH
efficiency
93.23%
excellent
rate
about
410.6
μmol
h–1
upon
irradiation.
This
study
provides
significant
evidence
favor
suggested
mediator-free
S-scheme-adapted
charge
migration
path,
it
effectively
explains
enhanced
exciton
leading
to
extraordinary
catalytic
proposed
composite.