Catalysts,
Journal Year:
2024,
Volume and Issue:
14(12), P. 954 - 954
Published: Dec. 23, 2024
This
investigation
reports
on
the
efficacy
of
a
photoelectrocatalysis
(PEC)
system
enhanced
by
nitrogen-doped
TiO2
nanocrystal-modified
nanotube
array
(N-TiO2
NCs/TNTAs)
anode
paired
with
graphene
oxide/activated
carbon
(GO/AC)
photocathode
for
diclofenac
removal
from
effluent.
The
FE-SEM
and
EDX
analyses
validated
elemental
composition
anode—27.56%
C,
30.81%
N,
6.03%
O,
26.49%
Ti.
XRD
results
confirmed
anatase
phase
nitrogen
integration,
essential
photocatalytic
activity
enhancement.
Quantum
chemical
simulations
provided
comprehensive
understanding
red-shifted
absorption
bands
in
N-TiO2,
UV-vis
DRS
demonstrated
red-shift
to
visible
spectrum,
indicating
improved
light
utilization.
PEC
configuration
achieved
photocurrent
density
9.8
mA/dm2,
significantly
higher
than
unmodified
solely
counterparts
at
4.8
mA/dm2
6.1
respectively.
Notably,
this
reduced
concentrations
58%
within
75
min,
outperforming
standard
setups.
These
findings
underscore
potential
N-TiO2
NCs/TNTAs-AC-GO/PTFE
composite
material
advanced
environmental
photoelectrocatalytic
applications.
International Journal of Applied Ceramic Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
To
enhance
the
effective
utilization
of
graphite
tailings
and
coal
gangue
(CG),
both
considered
typical
industrial
solid
waste
materials,
we
synthesized
foamed
ceramics
incorporating
these
materials.
The
optimization
process
led
to
improvements
in
compressive
strength,
water
absorption,
thermal
conductivity
by
regulating
critical
parameters,
including
proportions
SiC
Na
2
O,
as
well
duration
ball
milling.
Employing
techniques
such
X‐ray
diffraction,
thermogravimetric
analysis,
differential
scanning
calorimetry,
investigated
phase
composition,
high‐temperature
reactions,
microstructural
characteristics
ceramics.
incorporation
(GT)
facilitated
formation
a
rich
network
pore
structures
amorphous
glass
phases,
which
enhanced
lightweight
nature,
mechanical
insulation
properties
By
analyzing
GT
content
variable,
determined
that
G50C40
(GT:CG:potassium
feldspar
=
40:50:10)
sample
exhibited
optimal
performance
overall.
Under
experimental
conditions,
ceramic
demonstrated
bulk
density
0.749
g/cm
3
,
strength
12.37
MPa,
0.21
W/(m·K),
absorption
rate
0.79%.
Therefore,
it
is
posited
possesses
considerable
potential
broaden
application
spectrum
within
domain
building
ACS ES&T Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
Iron
materials
are
known
to
enhance
the
nitrogen
removal
efficiency
in
constructed
wetlands
(CWs)
by
coupling
iron
transformation
with
removal.
However,
current
research
lacks
detailed
explanations
of
microbial
processes
involved
utilizing
substrates,
such
as
transformation,
cellular
uptake,
and
metabolism,
leaving
a
gap
understanding
these
connections.
This
study
addresses
this
constructing
four
microcosm
CW
systems
using
Fe–C,
various
ratios
pyrite,
zerovalent
(ZVI)
substrates.
Experimental
results
indicated
that
was
most
thermodynamically
favorable
pyrite.
Microbial
communities
on
pyrite:
gravel
2:1
volume
ratio
(2P1G)
exhibited
greater
propensity
for
Feammox,
0.76%
increase
functional
network
Feammox
31.20%
abundance
nirA
gene
associated
process
compared
Fe–C
group.
Conversely,
group
less
favorable.
To
maintain
intracellular
homeostasis,
microorganisms
increased
siderophore
activity.
The
abundances
related
release
absorption
were
22.12%
17.26%
increased,
respectively,
2P1G.
employs
indicators
elucidate
link
between
transport
providing
insights
improving
CWs.
