Desalination and Water Treatment,
Journal Year:
2023,
Volume and Issue:
310, P. 167 - 180
Published: Oct. 1, 2023
Phenol
is
known
to
be
toxic
pollutant
causing
adverse
impact
on
human
health
and
environment.Thus,
the
present
study
aimed
remove
phenol
from
aqueous
solutions
utilising
natural
palm
date
leaf
(NL)
chemically
activated
with
H
3
PO
4
carbon
(ACL).Brunauer-Emmett-Teller
analysis,
Fourier-transform
infrared,
X-ray
diffraction,
scanning
electron
microscopy
coupled
energy-dispersive
spectroscopy
are
techniques
used
characterize
sorbents.The
removal
capacity
of
NL
ACL
was
investigated
in
batch
experiments
taking
content
(10-70
mg/L),
time
(15-240
min),
pH
(2-12),
adsorbent
dose
(0.1-0.6
g),
temperature
(25°C-65°C).The
maximum
decontamination
efficiencies
(42.4%)
(91.5%)
ACL,
respectively,
were
obtained
at
a
6,
25°C
0.4
g
for
each.The
kinetic
equilibrium
adsorption
data
fit
well
pseudo-second-order
model
Temkin
isotherm,
respectively.Furthermore,
utmost
sorption
7.645
13.369
mg/g
attained
respectively.The
results
studied
diffusion
models
revealed
that
mechanism
onto
not
only
controlled
by
film
but
also
intraparticle
diffusion.Also,
thermodynamic
identified
non-spontaneous
exothermic
nature
adsorption.The
research
determined
could
promising
potential
adsorbents
contaminated
water.
Chemical Engineering Science,
Journal Year:
2024,
Volume and Issue:
291, P. 119918 - 119918
Published: Feb. 28, 2024
Experimental
tests
in
batch
and
continuous
modes
studied
the
impact
of
pH
presence
inorganic
ions
on
photocatalytic
properties
a
visible
light-activated
titanium
oxide
catalyst
doped
with
iron.
Significantly
enhanced
photocatalysis
was
observed
nitrate
iron
ions,
while
chloride
hindered
adsorption
using
Rhodamine
B.
A
strong
correlation
between
performance
noted,
along
connection
target
molecule
subsequent
degradation.
Supporting
polystyrene
pellets
reduced
performance.
However,
reuse
for
four
cycles
optimal
dosages
were
achieved.
In
system,
consistent
chemical
efficiency
maintained.
Over
8
days,
removal
rates
remained
around
35
%
43
NO3–.
Mechanically,
no
loss
from
support
observed.
These
findings
set
stage
potential
industrial-scale
applications.
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(8), P. 544 - 544
Published: Aug. 20, 2024
This
work
examined
the
influence
of
UV-A
light
modulation
on
photocatalytic
process
coadjuvated
with
H2O2
to
mineralize
phenol
in
an
aqueous
solution.
A
fixed-bed
batch
reactor
a
flat-plate
geometry,
irradiated
by
LEDs,
was
employed.
The
successful
deposition
commercial
TiO2
PC105
steel
plate
(SP)
achieved,
and
structured
photocatalyst
characterized
using
Raman
spectroscopy,
specific
surface
area
(SSA)
measurements,
UV–vis
DRS
analysis.
These
analyses
confirmed
formation
titania
coating
anatase
phase
bandgap
energy
3.25
eV.
Various
LED-dimming
techniques,
both
fixed
variable
duty
cycle
values,
were
tested
evaluate
stability
photocatalyst’s
activity
operating
parameters
during
mineralization
450
mL
optimal
identified
as
initial
concentration
10
ppm,
hydrogen
peroxide
dosage
0.208
g
L−1,
triangular
modulation.
Under
these
conditions,
highest
apparent
degradation
kinetic
constant
(0.39
min−1)
total
achieved.
Finally,
consumption
for
mineralizing
90%
one
cubic
meter
treated
water
determined,
showing
greatest
savings
Coatings,
Journal Year:
2023,
Volume and Issue:
13(12), P. 2085 - 2085
Published: Dec. 14, 2023
The
rapid
increase
in
industrialization
and
human
population
is
leading
to
critical
levels
of
environmental
pollutants,
such
as
agrochemicals
or
heavy
metals,
which
affect
the
preservation
integrity
ecosystems,
accessibility
drinking
water
sources,
quality
air.
As
such,
remediation
these
issues
demands
strategies
for
implementing
designing
novel
technologies.
In
that
regard,
nanomaterials
have
unique
physicochemical
properties
make
them
desirable
candidates
detection
pollutants.
scope
this
review
provide
an
analysis
available
are
being
used
approach
detect
remediate
hazardous
residues,
comprising
systems
noble
biosensors,
cyclodextrin-based
polymers,
graphene
oxide
nanocomposites,
name
a
few.
Furthermore,
work
discusses
said
terms
their
effectiveness,
sustainability,
selectivity
guideline
researchers
wishing
indulge
relevant
study
area.
