Physica Scripta,
Journal Year:
2024,
Volume and Issue:
99(8), P. 085915 - 085915
Published: July 4, 2024
Abstract
In
this
work,
Niobium-doped
(1%,
3%,
and
5%)
titanium
dioxide
(Nb-TiO
2
)
nanosheets
were
successfully
formed
via
the
hydrothermal
route
further
characterized
using
TEM,
XRD,
XPS
UV–vis
absorption
spectroscopy
techniques.
Phase
purity
structural
information
of
prepared
materials
analysed
by
XRD
measurements.
The
band
gap
values
ranged
from
3.27
to
2.98
eV
as
Nb
doping
increased,
leading
improved
photocatalytic
activity
creating
new
energy
levels
close
conduction
band.
results
confirm
amalgamation
5+
ions
into
TiO
without
affecting
crystallinity,
structure
or
orientation
occurrence
oxygen
vacancies.
3%
Nb-doped
,
degradation
efficiency
for
removing
(Methylene
blue)
MB
dye
increased
∼96%
removal
within
70
min
in
comparison
pure
other
doped
catalysts
better
Nb-TiO
is
due
longer
time
between
electron–hole
pairs
before
they
recombine
one
pair.
Hydroxyl
radicals
(HO•)
superoxide
(O
•−
are
primary
reactive
entities
responsible
deterioration
dye.
Therefore,
incorporating
nanostructures
represents
an
auspicious
material
decomposition
hazardous
toxic
pollutants
aquatic
environments.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(22), P. 12371 - 12430
Published: Aug. 24, 2023
Nowadays,
the
increasing
emergence
of
antibiotic-resistant
pathogenic
microorganisms
requires
search
for
alternative
methods
that
do
not
cause
drug
resistance.
Phototherapy
strategies
(PTs)
based
on
photoresponsive
materials
have
become
a
new
trend
in
inactivation
due
to
their
spatiotemporal
controllability
and
negligible
side
effects.
Among
those
phototherapy
strategies,
photocatalytic
antimicrobial
therapy
(PCAT)
has
emerged
as
an
effective
promising
strategy
recent
years.
In
process
treatment,
are
excited
by
different
wavelengths
lights
produce
reactive
oxygen
species
(ROS)
or
other
toxic
killing
various
microbes,
such
bacteria,
viruses,
fungi,
parasites,
algae.
Therefore,
this
review
timely
summarizes
latest
progress
PCAT
field,
with
emphasis
development
antimicrobials
(PCAMs),
underlying
mechanisms,
design
multiple
practical
applications
local
infections
therapy,
personal
protective
equipment,
water
purification,
coatings,
wound
dressings,
food
safety,
antibacterial
textiles,
air
purification.
Meanwhile,
we
also
present
challenges
perspectives
widespread
implementation
therapeutics.
We
hope
result
review,
will
flourish
weapon
against
antibiotic
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
318, P. 100384 - 100384
Published: April 1, 2024
Advanced
oxidation
processes
(AOPs)
have
become
increasingly
more
useful
and
necessary
in
the
past
few
decades
because
they
can
degrade
a
wide
range
of
organic
inorganic
contaminants.
The
toxic
recalcitrant
nature
many
contaminants
obstruct
traditional
biological
processes,
making
treatment
ineffective.
Therefore,
there
is
pressing
need
to
develop
apply
effective
for
industrial
wastewater,
polluted
by
pharmaceuticals,
dyes,
other
industries.
AOPs
successful
technologies
treating
wastewater
remove
contaminants,
reduce
toxicity,
improve
biodegradability,
including
using
ultraviolet
(UV)
visible
light
(VIS)
combined
with
homogenous
or
heterogeneous
catalysts.
This
review
shows
that
Fenton
process
semiconductor
material
greatly
facilitates
removing
various
pollutants.
Additionally,
photocatalysis
research
ongoing
this
method
effectively
removes
emerging
In
addition,
challenges,
needs,
future
uses
are
described
performance
hasten
large-scale
implementation
water
treatment.
Water,
Journal Year:
2024,
Volume and Issue:
16(3), P. 453 - 453
Published: Jan. 30, 2024
This
study
presents
an
efficient
way
to
degrade
methylene
blue
(MB)
present
in
water
via
photodegradation
using
H2O2
as
oxidant
the
presence
of
UV
irradiation
and
without
use
a
catalyst.
The
reaction
variables,
employed
evaluate
performance
process
UV/H2O2
system,
were
amount
reacting
solution
initial
concentration
blue.
degradation
was
not
observed
during
agitation
darkness.
time
decreased
increased
after
ideal
reached.
At
this
stage,
it
began
scavenge
generated
hydroxyl
radicals,
rate
became
inversely
proportional
H2O2.
An
increase
quantities
MB
improved
efficiency
because
oxidation
aided
by
appropriate
length
light
exposure.
experimental
data
obtained
well-fitted
zero-order
kinetics
based
on
high
values
correlation
coefficient.
It
is
believed
that
OH
radicals
(OH●)
breakdown
O2●−
species
attack
molecules
produce
(MB●).
These
further
experience
convert
intermediates
finally
CO2
H2O.
system
proved
be
quite
for
any
solid
can
other
organic
pollutants
industrial
wastewater.
Journal of The Electrochemical Society,
Journal Year:
2023,
Volume and Issue:
170(11), P. 116506 - 116506
Published: Nov. 1, 2023
The
contemporary
world
faces
significant
challenges
with
the
depletion
of
non-renewable
energy
sources
and
escalation
global
temperatures.
Using
H
2
as
an
source
is
a
sustainable,
renewable,
environmentally
friendly
alternative.
Electrochemical
water
splitting
using
efficient
electrocatalyst
optimistic
approach
for
hydrogen
production.
primary
concern
development
durable,
cost-effective,
highly
bifunctional
to
enhance
electrochemical
splitting.
present
investigation
employs
CuS
electrocatalyst,
followed
by
implementation
two
techniques,
doping
composite
material
synthesis,
its
electrocatalytic
characteristics.
samples
doped
varying
weight
percentages
Ni
(2,
4,
6,
8,
10
wt.%)
6%
Ni@CuS
SGCN
were
synthesized
co-precipitation
method.
electrocatalysts
studied
characterization
techniques
such
SEM,
EDX,
FTIR,
XRD.
Doping
synthesis
water-splitting
activity,
LSV,
CV,
EIS,
Chronopotentiometry
analyses
demonstrated.
process
exhibits
maximum
performance
when
utilizing
Ni@CuS/SGCN,
resulting
in
low
overpotential
380
mV
OER
178
HER,
achieving
current
density
mA
cm
−2
.
findings
indicate
that
Ni@CuS/SGCN
can
potentially
serve
Physica Scripta,
Journal Year:
2024,
Volume and Issue:
99(2), P. 022004 - 022004
Published: Jan. 12, 2024
Abstract
This
review
paper
focuses
on
the
current
advancements
in
improving
optical
and
electrical
properties
of
n-type
p-type
oxides
sulphide
semiconductors.
The
demand
for
high-performance
semiconductors
has
grown
significantly
recent
years
due
to
their
wide
range
application
electronic
optoelectronic
devices.
However,
inherent
limitations
these
materials
such
as
low
conductivity,
poor
absorption,
carrier
mobility
have
hindered
widespread
adoption.
provides
an
overview
various
techniques
that
been
employed
improve
These
include
doping
with
impurities,
defect
engineering,
surface
passivation,
bandgap
engineering.
also
discusses
progress
synthesis
using
different
methods
chemical
vapor
deposition,
sol–gel,
hydrothermal
methods.
Furthermore,
this
highlights
applications
improved
fields
solar
cells,
light-emitting
diodes,
photocatalysis,
sensing.
Finally,
concludes
prospects
challenges
need
be
addressed
achieve
full
potential.
Overall,
valuable
insights
into
state-of-the-art
semiconductors,
which
can
potentially
lead
development
