Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(16), P. 2341 - 2341
Published: Aug. 15, 2023
In
this
work,
photocatalytic
materials
constituted
by
Cr-doped
TiO2
(Cr-TiO2)
decorated
with
noble
metals
show
high
effectiveness
in
the
mineralization
of
Acid
Orange
7
(AO7)
and
disinfection
real
river
water.
The
were
firstly
obtained
sol-gel
method
to
get
Cr-TiO2
that
was
subsequently
modified
photochemical
deposition
Ag
or
Pd
nanoparticles
(Ag/Cr-TiO2,
Pd/Cr-TiO2).
Chemical-physical
characterization
results
evidenced
homogeneously
distributed
on
surface.
By
using
Pd(0.25%)/Cr-TiO2,
AO7
discoloration
efficiency
about
91.4%
after
only
60
min
visible
irradiation,
which
can
be
due
lowest
band
gap
material.
Moreover,
nitrates,
chlorides,
total
hardness,
coliform
bacteria
content
significantly
decreased
treatment
water
samples
(that
is
contaminated
industrial
domestic
effluents)
under
UV
light
irradiation
presence
TiCrOx
metals.
One
hundred
percent
elimination
rate
for
E.
coli,
coliforms,
other
enterobacteriaceae
(without
regrowth)
achieved
Ag/Cr-TiO2
as
photocatalyst.
The
rapid
growth
in
industrialization
and
population
has
resulted
the
generation
permanence
of
a
wide
variety
inorganic
organic
pollutants,
posing
potential
risks
to
environment
human
health.
degradation
(either
removal
or
reduction)
sensing
these
pollutants
from
various
environmental
media
(e.g.,
air,
water,
soil)
are
nowadays
important
problems
worldwide.
To
address
this
issue,
several
nanotechnologies
numerous
nanostructured
materials
composites
have
been
established
for
efficient
remediation
applications.
This
is
ascribed
their
large
surface
area
improved
characteristics
efficiency
(like
high
reactive
feature).
current
chapter
reports
such
as
filtration,
photocatalysis,
chemical
reactions,
absorption,
adsorption,
nanosensing,
etc.
It
also
offers
an
overview
use
environment.
Novel
materials,
involving
inorganic-based
nanomaterials
(NMs)
zero-valent
metal
NMs,
oxide-based
silica-based
NMs),
carbon-based
polymeric-based
well
nanocomposites
were
extensively
reported
discussed.
These
efficiently
employed
remediating
halogenated
herbicides,
volatile
compounds,
chlorinated
aromatic
aliphatic
hydrocarbons,
pharmaceuticals,
dyes,
heavy
metals,
biological
substances
antibiotics,
parasites,
bacteria,
viruses),
gases
(NOx,
CO,
SO2,
etc.).
Their
efficiency,
advantages,
limitations
compared
Moreover,
some
directions
future
studies
proposed.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(24), P. e40998 - e40998
Published: Dec. 1, 2024
Industrial
organic
dyes
represent
a
significant
portion
of
pollutants
discharged
into
the
environment,
particularly
by
textile
industry.
These
compounds
pose
serious
threats
to
living
organisms
due
their
high
toxicity.
Various
techniques
have
been
explored
for
degradation
dyes,
among
which
heterogeneous
photocatalysis
utilising
titanium
dioxide
(TiO
Zeitschrift für Physikalische Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 29, 2024
Abstract
In
this
study,
a
novel
SnO
2
–Zr–F
nanostructured
composite
was
successfully
synthesized
through
mild
chemical
reaction.
The
crystalline
nature
of
the
characterized
using
XRD,
revealing
an
average
size
28.31
nm.
FE-SEM
images
illustrated
agglomerated
spherical
morphology
with
appropriate
elemental
ratios.
optical
properties
nanocomposite
are
identified
by
UV–vis
spectroscopy
Tauc
plot,
and
calculated
bandgap
is
eV.
Photocatalytic
activity
assessed
against
cationic
(Rhodamine
B)
anionic
(Eosin
yellow)
dyes
under
sunlight
for
150
min,
resulting
in
maximum
degradation
efficiency
92
%
98
%,
respectively.
Furthermore,
antibacterial
performance
evaluated
S.
aureus
E.
coli
bacteria.
findings
suggest
that
prepared
exhibits
promising
potential
environmental
applications,
showcasing
its
efficacy
both
photocatalytic
domains.
