E3S Web of Conferences,
Год журнала:
2024,
Номер
511, С. 01006 - 01006
Опубликована: Янв. 1, 2024
This
research
delves
into
the
development,
manufacturing,
and
assessment
of
nanocatalysts
with
purpose
producing
hydrogen
sustainably
from
renewable
resources.
Using
sol-gel,
hydrothermal,
co-precipitation,
solvothermal
processes,
four
distinct
catalysts
labels
A,
B,
C,
D
were
created,
respectively.
The
rate
generation,
activation
energy,
turnover
frequency,
surface
area
used
to
assess
catalytic
performance.
Catalyst
A
outperformed
B
in
terms
generation
rate,
a
10%
increase
50
mmol/g/hr.
Moreover,
showed
superior
reaction
kinetics
lower
energy
kJ/mol.
With
frequency
0.02
s^-1,
catalyst
C
had
highest
activity,
indicating
higher
activity
per
active
site.
Furthermore,
120
m^2/g,
offered
most
locations
for
reactions
that
produce
hydrogen.
Environmental
impact
analyses
various
varied
amounts
resources
produced
varying
waste.
950
liters
water
45
kWh
consumption,
lowest
use,
whereas
least
amount
chemical
waste
(6
kg).
results
stability
tests
durability
varied,
showing
maximum
after
100
cycles.
Overall,
emphasize
how
crucial
design
synthesis
techniques
are
development
effective
long-lasting
technologies.
To
optimize
compositions,
improve
stability,
scale
up
manufacturing
real-world
applications
systems,
further
is
necessary.
Catalysts,
Год журнала:
2024,
Номер
14(7), С. 464 - 464
Опубликована: Июль 19, 2024
In
this
study,
Ag-AgCl/attapulgite
(Ag-AgCl/ATP)
composites
were
synthesized
via
a
direct
precipitation
method
using
ATP
nanorods
as
catalyst
supporter.
helped
to
increase
the
dispersion
of
Ag-AgCl
particles
and
broaden
light
absorption
spectrum,
which
would
also
help
active
site
promote
degradation
tetracycline
(TC).
The
photocatalytic
activity
Ag-AgCl/ATP
was
evaluated
through
TC,
identifying
loading
amount
Ag-AgCl,
concentration
reaction
temperature
critical
factors
influencing
activity.
Specifically,
optimal
conditions
observed
when
75%,
resulting
in
efficiency
77.65%.
Furthermore,
highest
(85.01%)
achieved
with
TC
20
mg/L
at
°C.
Radical
trapping
experiments
suggested
that
superoxide
anion
radical
(·O2−)
primary
species
process,
although
hydroxyl
radicals
(·OH)
holes
(h+)
contributed.
Reusability
tests
confirmed
exhibited
excellent
stability
could
be
effectively
reused.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(42), С. 57051 - 57063
Опубликована: Окт. 11, 2024
High
structural
stability,
dual
organic–inorganic
nature,
and
tunability
in
chemical
functionality
are
promising
characteristics
of
zirconium-based
metal–organic
frameworks
(Zr-MOFs).
These
properties
assist
Zr-MOFs
extending
their
applications
various
fields,
especially
adsorptive
removal
pollutants.
In
this
work,
two
well-known
(UiO-66(Zr)
MIL-140(Zr)
with
the
formula
Zr6O4(OH)4(BDC)6,
H2BDC
is
benzene
1,4-dicarboxylic
acid)
were
synthesized
decorated
a
dihydrotetrazine
functional
group
through
postsynthesis
linker
exchange
(PSLE).
Two
(DHTZ)-functionalized
frameworks,
UiO-66(Zr)-DHTZ
MIL-140(Zr)-DHTZ,
applied
for
quinoline
(Qui)
indole
(Ind)
from
model
oil.
The
results
adsorption
experiments
at
room
temperature
display
that
these
functionalized
have
significantly
improved
capacities
Qui
(875%
303%
MIL-140(Zr)-DHTZ)
Ind
(722%
257%
MIL-140(Zr)-DHTZ).
Mechanistic
studies
based
on
X-ray
photoelectron
(XPS)
Fourier-transform
infrared
(FT-IR)
spectroscopies
reveal
there
specific
kind
host–guest
interaction
between
nitrogen-containing
compounds
(NCCs).
adsorbs
1426
mg·g–1
1176
Ind,
while
MIL-140(Zr)-DHTZ
619
511
Ind.
lower
compared
to
related
its
surface
area
(783
m2·g–1
versus
330
m2·g–1).
recyclability
goes
up
five
cycles
without
any
significant
decrease
capacity.
indicate
dihydrotetrazine-functionalized
highly
stable
platforms
superior
capacity
basic
neutral
NCCs.
