ACS Applied Nano Materials,
Journal Year:
2021,
Volume and Issue:
4(8), P. 7686 - 7697
Published: July 27, 2021
Surface
modification
of
ZnO
nanoparticles
(NPs)
is
considered
as
a
key
for
enhanced
sustained
generation
reactive
oxygen
species
(ROS)
in
the
reaction
medium
improving
photocatalytic
degradation
phenomenon.
Here,
we
present
simple
chemical
method
synthesizing
carbon
dots
(CDs)
embedded
on
surface
NPs
denoted
ZnO/CD
nanocomposites
(NCs)
photocatalyst
efficient
sunlight-driven
ciprofloxacin
(CIP).
The
X-ray
diffraction
(XRD)
and
transmission
electron
microscopy
(TEM)
studies
confirmed
formation
needle-shaped
clusters
NCs.
band
gaps
NCs
pristine
are
determined
from
Tauc's
plot.
Under
optimized
conditions,
batch
CIP
at
pH
6.3
±
0.1
treated
with
0.6
g
L–1
revealed
98%
110
min
by
harnessing
longer
UV
visible
components
sunlight.
rate
was
0.30
min–1,
which
3
times
higher
than
that
NPs.
attributed
to
improved
mobility
charge
carriers
ROS.
This
scavenging
hydroxyl
radicals
superoxide
radicals.
ROS
inhibition
carrier
recombination
facilitated
CDs
applicability
demonstrated
five
cycles
repeatability
studies.
After
operation,
structure
morphology
used
were
stable,
XRD,
TEM,
Fourier
transform
infrared
It
concluded
photocatalysts
CIP,
model
emerging
contaminant.
Water,
Journal Year:
2022,
Volume and Issue:
14(2), P. 140 - 140
Published: Jan. 6, 2022
Pharmaceutical
contamination
threatens
both
humans
and
the
environment,
several
technologies
have
been
adapted
for
removal
of
pharmaceuticals.
The
coagulation-flocculation
process
demonstrates
a
feasible
solution
pharmaceutical
removal.
However,
chemical
coagulation
has
its
drawbacks,
such
as
excessive
toxic
sludge
production
high
cost.
To
overcome
these
shortcomings,
feasibility
natural-based
coagulants,
due
to
their
biodegradability,
safety,
availability,
investigated
by
researchers.
This
review
presented
recent
advances
using
natural
coagulants
compound
from
aqueous
solutions.
main
mechanisms
water
wastewater
are
charge
neutralization
polymer
bridges.
Natural
extracted
plants
more
commonly
than
those
animals
affordability.
competitive
in
terms
performance
environmental
sustainability.
Developing
reliable
extraction
method
is
required,
therefore
further
investigation
essential
obtain
complete
insight
regarding
effect
factors
during
coagulants.
Finally,
indirect
application
an
step
implementing
green
treatment
technologies.
Discover Water,
Journal Year:
2024,
Volume and Issue:
4(1)
Published: April 24, 2024
Abstract
This
study
aims
to
explore
technological
advances
and
prospects
in
phenol
treatment
by
providing
a
detailed
bibliometric
survey
of
wastewater
applications,
highlighting
innovative
research.
Using
the
Web
Science
database,
we
identified
79,104
articles
from
2003
2023,
later
refined
1848.
The
keywords
were
used
for
initial
search:
“phenol”,
“wastewater”,
“degradation”,
“treatment”
“removal”.
bibliographic
review
details
occurrence
journals,
authors,
newspapers,
countries,
institutions,
keywords,
highly
cited
articles,
prominent
predominant
research
fields.
In
particular,
field
“Engineering”
was
responsible
32%
published
followed
“Ecology
Environmental
Sciences”
(25%)
“Chemistry”
(12%).
addition,
keyword
analysis
revealed
five
major
groups
clusters
that
indicate
where
is
progressing.
aspect
crucial
understanding
evolution
perspectives
interests
over
time.
Therefore,
future
should
prioritize
feedstock
diversification.
focus
essential
address
significant
challenges,
such
as
production
costs,
stability,
durability
processes.
Graphical
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
The
release
of
common
medications
and
illegal
drugs
into
the
environment
could
be
potentially
harmful
to
ecosystem
hamper
behavior
growth
plants
animals.
These
pollutants
gain
access
water
through
sewage
factory
discharges
have
been
found
exceed
safety
limits
in
bodies.
Therefore,
there
is
an
urgent
need
for
improved
wastewater
purification
systems.
In
this
study,
semiconductor-based
heterojunction
photocatalyst
CuInS2/CeO2,
synthesized
a
facile
solvothermal
process,
was
explored
photocatalytic
degradation
ciprofloxacin,
commonly
used
antibiotics.
Studies
on
electronic
properties
revealed
interfacial
characteristics
that
were
suitable
enhanced
charge
carrier
separation
transport
potential
S-scheme
transfer
mechanism.
achieved
∼90%
efficiency
CIP
compared
60%
12%
reported
CeO2
CuInS2,
respectively.
This
shows
improvement
activity,
which
results
from
heterojunction.
Further
investigation
mechanism
radical
scavenging
experiments
identified
•OH,
O2•–,
h+
as
active
species
contributing
catalyst's
efficacy.
Based
X-ray
photoelectron
spectroscopy
analysis,
proposed
suggested
CuInS2/CeO2
findings
indicate
promising
treating
waste
effluents
pharmaceutical
industry.
