Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(46), С. 20125 - 20143
Опубликована: Ноя. 11, 2024
In
this
study,
a
reusable
double
Z-scheme
In2S3/Bi2WO6/CdS
(ICB)
photocatalytic
hydrogels
were
developed
for
efficient
reclamation
of
sulfamethoxazole
(SMX)
using
peroxymonosulfate
(PMS)
activation
and
H2O2
production.
The
ternary
nanocomposites
prepared
the
hydrothermal
method
formulated
into
via
an
immobilization
strategy
sodium
alginate
as
base
substrate.
morphological,
optical,
structural,
electrochemical
characterization
ICB
confirmed
formation
heterojunction.
displayed
99%
(10
mg/L)
degradation
(Rate
constant
=
0.191
min
–1)
in
20
visible
light
irradiation
(400
with
reusability
15
cycles.
Also,
hydrogels/PMS/Visible
system
demonstrated
higher
mineralization
efficiency
(56%)
ensured
practicability
by
reclaiming
real
wastewater.
Higher
catalytic
efficacy
is
ascribed
to
construction
heterojunctions
between
In2S3,
Bi2WO6,
CdS,
which
resulted
enhanced
separation
suppressed
recombination
ratio
charge
carriers.
synergistic
interaction
photocatalyst
PMS
boosted
production
reactive
oxygen
species
like
SO4*–,
O2*–,
OH*–,
electrons.
Additionally,
studies
revealed
maximum
302
μM
60
min.
advantages
include
reusability,
easiness
catalyst
recovery,
utilization
(1.34
eV),
sustainability.
This
research
provides
perspectives
on
successful
fabrication
redemption
noxious
contaminants.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(13), С. 5169 - 5185
Опубликована: Март 15, 2024
The
facile
development
of
highly
efficient
visible
light
active
metal-free
homojunction
photocatalysts
with
phenomenal
photoelectron
migration
is
emerging
as
a
prominent
method
for
diverse
energy
and
environmental
remediation
applications.
Through
an
effective
cross-linking
technique,
citric
acid-functionalized
g-C3N4
homojunction/carboxymethyl
cellulose
hydrogel
beads
(ICN/CMC
beads)
were
prepared.
photocatalytic
studies
ICN/CMC
exhibited
87%
tetracycline
degradation
in
40
min
under
irradiation.
important
advantages
are
their
ease
recovery
reusability
up
to
12
cycles.
capable
producing
2341
μmol
hydrogen
peroxide
501
μmol/h·g
ammonia
production
60
predominant
catalytic
activity
due
the
tuned
bandgap
photocatalyst,
which
facilitated
separation
electron–hole
pairs
hindered
recombination
charge
carriers.
Thus,
affordable
sustainable
multimodal
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(6), С. 2605 - 2618
Опубликована: Фев. 5, 2024
A
hybrid
Na,
B,
and
O
codoped
g-C3N4/polypyrrole
carbon
black
(CCNP)
hydrogel
is
prepared
via
an
in
situ
cross-linking
method
for
percarbonate
activation
under
visible
light
irradiation.
The
structural,
morphological,
optical
characterizations
proved
the
tuned
bandgap,
enriched
utilization
of
light,
minimum
recombination
ratio,
higher
separation
efficiency.
CCNP
hydrogels
could
easily
activate
leading
to
abundant
production
reactive
radicals,
which
aids
degradation
tetracycline
wastewater.
About
96%
was
degraded
15
min
at
its
natural
pH.
superoxide,
carbonate,
hydroxyl
radicals
were
important
radical
species
degradation.
also
exhibited
high
photostability
reusability
up
six
cycles.
pathway
given
a
special
focus,
mechanism
highlighted.
This
study
provides
new
strategy
boosting
performance
g-C3N4-based
catalysts
wastewater
remediation.
