Frontiers in Chemistry,
Journal Year:
2024,
Volume and Issue:
12
Published: Sept. 27, 2024
Industrial
dye
effluent
causes
significant
risks
to
the
environment.
The
present
study
was
focused
on
photocatalytic
degradation
of
Direct
Red
28
using
a
ternary
composite
graphitic
carbon
nitride,
TiO
2
,
and
polyorthoanisidine
(g-C
3
N
4
/TiO
/POA),
prepared
by
in-situ
oxidative
polymerization
o-
anisidine.
synthesized
g-C
/POA
properties
were
characterized
different
analytical
techniques.
X-ray
diffraction
(XRD)
results
revealed
prominent
pattern
in
peak
at
2θ°
while
Fourier
transform
infrared
(FTIR)
provided
confirmation
peaks
for
POA
1,110
cm
−1
1,084
C-O-C
ether.
Scanning
electron
microscopy
(SEM)
demonstrated
an
increase
average
size
up
428
nm.
energy-dispersive
spectroscopy
(EDX)
spectrum
weight
percentages
C,
O,
Ti
8.5%,
45.69%,
45.81%,
respectively.
under
UV
irradiation
showed
that
86%
degraded
30
mg/L
dose
240
min
pH
2.
After
four
consecutive
cycles,
utilized
79%
28,
demonstrating
stability
effectiveness
photocatalyst.
high
reusability
efficiency
are
due
increased
light
absorption
range
reduced
e
−
/h
+
recombination
rate
presence
POA.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(4), P. 347 - 347
Published: April 2, 2025
The
dependence
of
the
reaction
rate
on
solution
layer
thickness
discovered
in
a
previous
work
could
be
powerful
tool
for
investigating
photocatalytic
reactions.
A
reduction
apparent
constant
with
growth
dye
concentration
was
found
using
this
dependence.
This
decrement
follows
hyperbolic
law.
is
explained
based
observed
increment
conductivity.
In
addition,
it
confirmed
experimentally
that
decreases
depth
growth.
possibility
independent
determination
and
adsorption
equilibrium
has
been
discussed.
Additionally,
demonstrated
vessel’s
reflective
bottom
increase
chemical
rate.
reason
why
other
authors
have
not
yet
reported
effect
also
