Korean Journal of Metals and Materials,
Год журнала:
2024,
Номер
62(9), С. 713 - 720
Опубликована: Сен. 4, 2024
Recently,
due
to
energy
shortages
and
environmental
pollution
caused
by
the
continued
use
of
fossil
fuels,
there
is
a
growing
need
for
renewable
sources
replace
fuels.
ZIF-67
has
porous
structure,
large
surface
area,
high
thermal
chemical
stability,
narrow
band
gap,
so
it
highly
useful
as
photocatalyst.
In
this
study,
CoM-ZIF/CdS
photocatalyst
based
was
synthesized
using
precipitation
method
synthesis
with
four
different
substances:
Ni,
Zn,
Sn,
Cu.
Field
emission
scanning
electron
microscopy
analysis
revealed
that
leaf-like
particles
are
formed,
dispersive
X-ray
spectrometer
confirmed
CdS
exists
on
surface,
further
evidenced
diffractometer
analysis.
The
wurtzite
found
in
optimized
sample
considered
source
higher
photocatalytic
activity.
photoelectron
spectroscopy
detects
all
elements
included
photocatalyst,
prominent
peaks
Cd
S
surface.
UV-vis
used
analyze
light
absorbance.
gap
changed
various
transition
metals
because
metal
alters
level
conduction
band.
CoNi-ZIF/CdS
exhibited
highest
hydrogen
production
rate
1192.9
µmol/g/h,
reproducibility.
heterojunction
between
Co-ZIF
reduces
recombination.
conclusion,
results
an
efficient
charge
separation
mechanism.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(13), С. 4582 - 4593
Опубликована: Янв. 1, 2024
The
synergistic
catalysis
effect
based
on
CoP
and
Cu
3
P
dual-function
active
sites
is
proposed
to
understand
the
mechanism
of
hydrogen
(*H)
adsorbed
intermediates
(*NO
x
)
during
water-splitting
nitrate
reduction.
Materials,
Год журнала:
2023,
Номер
16(6), С. 2410 - 2410
Опубликована: Март 17, 2023
In
this
study,
new
composite
materials
comprising
zeolitic
imidazolate
framework
(ZIF)
structures
and
microchannel
glass
(MCG)
plates
were
fabricated
using
the
hydrothermal
method
their
morphological
spectral
properties
investigated
XRD,
SEM,
FTIR,
Raman
spectroscopy.
XRD
studies
of
powder
samples
revealed
presence
an
additional
phase
for
a
ZIF-8
sample,
whereas
ZIF-67
samples,
which
prepared
through
two
different
chemical
routes,
showed
no
phases.
A
detailed
analysis
FTIR
micro-Raman
spectra
formation
stable
ZIF
inside
macropores
MCG
substrate.
The
hydrophilic
nature
substrate
its
interaction
with
structure
resulted
in
ZIF-MCG
composites.
We
believe
that
these
may
find
wide
range
important
applications
field
sensors,
molecular
sieving.
Nanoscale Advances,
Год журнала:
2023,
Номер
5(7), С. 1956 - 1969
Опубликована: Янв. 1, 2023
Zeolitic
imidazolate
framework-67
(ZIF-67),
carbon
nanoparticles
(CNPs),
and
the
CNPs@ZIF-67
composite
were
prepared
used
to
fabricate
sensors
for
detection
of
acetone
vapour.
The
materials
characterized
using
transmission
electron
microscopy,
powder
X-ray
diffraction,
photoelectron
spectroscopy,
Raman
spectroscopy
Fourier-transform
infrared
spectroscopy.
tested
an
LCR
meter
under
resistance
parameter.
It
was
found
that
ZIF-67
sensor
did
not
respond
at
room
temperature,
CNP
had
a
non-linear
response
all
analytes,
CNPs/ZIF-67
excellent
linear
vapour
less
sensitive
3-pentanone,
4-methyl-1-hexene,
toluene
cyclohexane
vapours.
However,
it
improves
soot
sensitivity
by
155
times,
wherein
soot@ZIF-67
on
be
0.0004
0.062
respectively.
In
addition,
insensitive
humidity
limit
484
ppb
temperature.
Applied Organometallic Chemistry,
Год журнала:
2023,
Номер
37(10)
Опубликована: Авг. 22, 2023
In
this
study,
a
novel
hydroxyapatite
(HAp)‐based
composite,
Co‐Cu/ZIF@HAp,
was
constructed
through
in
situ
growth
and
simultaneous
sonication
followed
by
magnetic
string.
Herein,
the
HAp‐based
nanocomposite
obtained
which
HAp
coated
with
cobalt–copper
bimetallic
zeolitic
imidazolate
framework
(ZIF)
one‐pot
synthesis
method.
The
as‐synthesized
composite
characterized
PXRD,
FTIR,
FE‐SEM,
EDS,
HR‐TEM,
TGA‐DTG,
XPS,
BET,
UV‐DRS
techniques,
suggested
that
well
ZIF.
prepared
utilized
as
catalyst
degradation
of
organic
pollutants.
Removal
pollutants
such
dyes
has
become
indispensable
due
to
their
higher
stability,
toxicity,
mutagenic
nature.
Two
commonly
found
dyes,
namely,
Eosin
Yellow
(EY)
Brilliant
Green
(BG),
were
chosen
for
investigation
photocatalytic
activity
as‐prepared
catalyst.
process
carried
out
under
solar
radiation,
there
no
utilization
any
oxidizing
reducing
agent.
Several
parameters
amount
dose,
initial
concentration
dye
solution,
effect
different
pH
conditions
evaluated
better
understanding
performance
Co‐Cu/ZIF@HAp
composite.
Both
EY
BG
almost
degraded
up
98.3%
99.5%,
respectively,
within
50
min
nanocomposite.
Also,
quenching
test
performed
confirmed
formation
superoxide
radicals
(O
2
−.
)
reactive
oxygen
species
(ROS)
photodegradation
process.
repeatedly
used
five
times
ascertain
stability
reusability
