ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(9), С. 9898 - 9908
Опубликована: Апрель 18, 2024
Hydrogen
energy
is
widely
recognized
as
the
cleanest
source
with
zero
emissions
and
represents
a
pivotal
aspect
of
ambitious
carbon
neutralization
goals.
Future
trends
forecast
substantial
transition
toward
employing
green
hydrogen
from
fossil
counterparts.
Therefore,
there
significant
demand
for
developing
efficient
stable
semiconductor
photocatalysts
responsive
to
visible
light
maximize
solar
utilization.
The
perovskite
SrTiO3
(STO),
cubic
chalcogenide
oxide
featuring
structure,
cost-effectiveness,
flexibility,
corrosion
resistance,
thermal
stability,
has
garnered
extensive
attention
in
realm
photocatalytic
applications.
However,
due
its
intrinsic
wide
band
gap,
limited
amounts
photogenerated
charge
carriers
result
an
unsatisfactory
efficiency.
Herein,
g-C3N4
was
employed
morphology
manipulator
on
nanofibers.
ZnS
nanoparticles
were
then
grown
situ
modified
porous
nanofibers
(g-STO)
construct
g-STO/ZnS
type
II
nanofibrous
heterojunctions.
Benefiting
synergistic
effects
large
specific
surface
areas
built-in
electric
field,
recombination
significantly
restrained,
endowing
composite
photocatalyst
excellent
performance.
optimized
heterojunction
Sr/Zn
molar
ratio
1:6
displays
highest
area
activity,
yielding
1.79
mmol
g–1
h–1
production.
Comparative
analyses
pure
STO
g-STO
materials
shed
photovoltaic
properties
activity
This
work
establishes
facile
routine
that
could
allow
design
effective,
high-performance
heterojunctions
sunlight-driven
Industrial & Engineering Chemistry Research,
Год журнала:
2023,
Номер
62(11), С. 4655 - 4664
Опубликована: Янв. 11, 2023
Today,
the
development
of
green
nanocatalysts
is
among
popular
topics
due
to
need
for
energy
production
and
cleaning
organic
pollutants.
In
this
approach,
Bacillus
thuringiensis,
a
bacterium,
was
used
as
biosupport
ruthenium/nickel
co-doped
zinc
nanoparticles
(btRNZn
NPs)
release
hydrogen
from
methanolysis
sodium
borohydride
(NaBH4).
addition,
their
photocatalytic
activity
reported
against
Methyl
Orange
(MO)
dye.
This
study
focused
on
preparation,
characterization,
catalytic
btRNZn
biocatalyst
NaBH4
removal
MO
According
TEM
analysis,
average
size
NPs
found
be
11.78
nm;
in
showed
photodegradation
effect
68.2%
dye
at
90
min,
its
mechanism
discussed.
The
effects
catalyst,
substrate,
temperature
reaction
presence
catalyst
were
investigated
extensively.
kinetics
calculated,
TOF,
activation
energy,
enthalpy
measured
2497.14
h–1,
14.89
kJ/mol,
12.35
respectively.
It
observed
that
process
first-order
based
amount
substrate.
aimed
synthesize
nanobiocatalyst
by
biological
method,
it
will
great
photocatalyst
prevent
wastewater
pollution;
also,
can
an
excellent
produce
methanolysis.
application
solar
photocatalysis
pollution
research
through
creation
are
both
made
clear
these
studies.
Nanomanufacturing,
Год журнала:
2022,
Номер
2(4), С. 265 - 291
Опубликована: Дек. 5, 2022
Nanomaterials
(NMs)
that
are
created
with
zinc
oxide
very
valuable
for
a
wide
variety
of
applications.
There
is
present
interest
in
ZnO
nanoparticles
range
industries.
This
may
be
attributed
to
the
fact
NPs
have
many
important
features.
It
will
necessary
possess
certain
qualities
order
them
rapidly
find
uses
industry
and
these
applications
an
effect
on
expansion
economy.
A
large
surface
area,
bandgap,
photocatalytic
property,
biosensing,
bioimaging,
other
included
this
list.
In
article,
extraordinary
characteristics
NPs,
as
well
their
novel
industrial
settings
challenges
come
along
utilization,
discussed.
Chemical Physics Impact,
Год журнала:
2024,
Номер
8, С. 100461 - 100461
Опубликована: Янв. 6, 2024
In
this
study,
the
primary
focus
revolves
around
synthesis
of
zinc
oxide
(ZnO)
and
dysprosium-doped
(Dy-doped
ZnO)
nanoparticles
utilizing
a
green
chemistry
approach,
employing
Rhododendron
arboreum
petal
extract
as
key
component.
A
thorough
characterization
has
been
carried
out,
involving
range
analytical
techniques
including
UV-visible
spectroscopy,
Fourier-transform
infrared
(FTIR)
X-ray
diffraction
(XRD),
photoelectron
spectroscopy
(XPS),
field
emission
scanning
electron
microscopy
(FESEM),
energy-dispersive
(EDX),
high-resolution
transmission
(HRTEM),
selected-area
(SAED),
fluorescence
spectroscopy.
The
structural
examination
confirmed
persistent
hexagonal
wurtzite
structure
ZnO
nanoparticles,
which
remained
unaltered
even
with
Dy
doping.
XPS
analysis
corroborated
presence
lattice
oxygen
in
addition
to
confirming
Dy3+
Zn2+.
results
indicated
that
incorporation
ions
replaces
Zn2+
host
leading
an
increase
defects
inside
ZnO.
Based
on
HRTEM
images,
particle
size
was
determined
be
31
nm
for
39
Dy-doped
nanoparticles.
FESEM
imaging
unveils
morphology
reminiscent
pebbles,
EDX
spectra
provide
additional
evidence
Zn,
Dy,
O
elements
within
aligns
findings
from
XPS.
Subsequently,
these
synthesized
were
harnessed
remediation
Novacron
Brown,
textile
dye.
Additionally,
explored
their
antimicrobial
antifungal
properties
highlight
considerable
potential
specific
domains.
