Frontiers in Chemical Engineering,
Journal Year:
2024,
Volume and Issue:
6
Published: Feb. 2, 2024
The
emerging
field
of
using
titanium
dioxide
(TiO
2
)-based
photosensitizers
for
enhancing
photocatalytic
removal
thiazine
dyes
such
as
methylene
blue
(MB)
from
water
has
long
been
recognized
its
exceptional
properties,
making
it
an
attractive
material
environmental
remediation
and
energy
conversion.
However,
wide
bandgap
limits
responsiveness
to
visible
light.
As
such,
the
utilization
TiO
-based
dyes,
presents
a
promising
avenue
diverse
applications.
In
addressing
dual
challenges
pollution
harnessing
sustainable
sources,
this
review
focuses
on
their
subsequent
application
materials.
Thiazine
ubiquitous
in
industrial
effluents,
pose
concerns
due
persistence
potential
toxicity.
Conversely,
innovative
approach
involves
employing
materials
photocatalysts,
utilizing
unique
properties
enhance
light
absorption.
Studies
have
shown
that
beyond
conventional
role
colorants,
they
can
serve
effective
when
coupled
with
.
This
tandem
not
only
facilitates
elimination
MB,
but
also
augments
improvement
performance
synergy
between
dye
sensitizers
enhances
overall
efficiency
processes
like
degradation
splitting.
Dye
sensitizers,
acting
absorbers,
efficiently
transfer
,
thereby
promoting
electron
generating
reactive
oxygen
species
(ROS).
These
ROS,
turn,
initiate
chemical
reactions,
rendering
valuable
applications
wastewater
treatment,
solar
conversion,
remediation.
is
crucial
acknowledge
drawbacks
associated
including
toxicity
non-biodegradability.
Consequently,
careful
consideration
must
be
given
disposal.
Therefore,
manuscript
delves
into
comprehensive
exploration
photosensitizers,
shedding
efficacy
various
removal.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(39)
Published: July 22, 2024
Abstract
Graphitic
carbon
nitride
(g‐C
3
N
4
)
assisted
photocatalytic
production
of
hydrogen
peroxide
(H
2
O
has
already
attracted
the
interest
many
researchers
due
to
its
environmental
sustainability.
Nevertheless,
inherent
drawbacks
g‐C
limit
progress.
Metal‐free
modification
strategies,
including
nanostructure
design,
defect
introduction,
doping,
and
heterojunction
construction,
have
been
developed
improve
efficiency
H
production.
Compared
metal
modification,
metal‐free
strategies
avoid
use
precious
metals
leaching
heavy
ions,
which
advantages
good
stability
friendliness.
However,
a
comprehensive
review
from
modified
by
is
still
lacking.
This
first
recaps
mechanism
,
photoexcitation,
carrier
separation
redox
reactions.
Then,
perspective
advances
in
photocatalysts
are
presented,
with
special
focus
on
kernel
connection
between
different
based
pivotal
stages
Subsequently,
recent
applications
‐based
for
situ
generated
mainly
water
purification
organic
synthesis,
briefly
discussed.
Finally,
prospects
envisioned
hope
that
it
will
“something
do”
field
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 12, 2024
In
this
study,
a
split-type
photocatalytic
membrane
reactor
(PMR),
incorporating
suspended
graphitic
carbon
nitride
(g-C3N4)
as
photocatalyst
and
layered
polymeric
composite
(using
polyamide,
polyethersulfone
polysulfone
polymers)
was
fabricated
to
remove
tetracycline
(TC)
from
aqueous
solutions
the
world's
second
most
used
discharged
antibiotic
in
wastewater.
The
synthesised
melamine
by
ultrasonic-assisted
thermal
polymerisation
method
and,
along
with
membrane,
characterised
using
various
methods,
including
Brunauer-Emmett-Teller
analysis
(BET),
Fourier-transform
infrared
spectroscopy
(FTIR),
X-ray
diffraction
(XRD),
Field
emission
scanning
electron
microscopy
(FESEM),
Ultraviolet-visible
(UV-Vis).
PMR
process
optimised,
Design-Expert
software
for
removal
terms
of
UV
irradiation
time,
pH,
loading,
concentration,
separation
iteration.
It
revealed
that
membrane-integrated
sustainable
system
could
effectively
produce
clean
water
simultaneous
solution.
maximum
94.8%
obtained
at
concentration
22.16
ppm,
pH
9.78
0.56
g/L
time
113.77
min
after
six
times
passing
membrane.
showed
reasonable
reusability
about
25.8%
drop
TC
efficiency
seven
cycles
optimal
conditions.
outcomes
demonstrate
promising
performance
proposed
suggest
it
can
be
scaled
an
effective
approach
supply
antibiotic-free
water.
npj Materials Sustainability,
Journal Year:
2025,
Volume and Issue:
3(1)
Published: Jan. 7, 2025
Abstract
Advanced
Oxidation
Processes
(AOPs)
are
promising
for
treating
persistent
pollutants,
yet
challenges
arise
due
to
the
step-wise
oxidants
activation
process,
which
traditional
single-active-center
catalysts
struggle
facilitate
effectively.
Recently,
dual-active-center
have
emerged
as
a
solution
by
enabling
synergistic
reactions.
This
review
covers
advances
in
these
catalysts,
their
co-catalytic
mechanisms,
and
applications
electro-Fenton,
photocatalytic,
peroxymonosulfate-,
pollutant-as-electron-donor
based
Fenton-like
processes,
along
with
active
site
design
considerations
future
challenges.
