Cleaner Water,
Год журнала:
2024,
Номер
1, С. 100018 - 100018
Опубликована: Май 29, 2024
The
world
is
facing
an
alarming
situation
in
terms
of
pollution,
with
water
contamination
being
a
critical
concern
for
scientists
aiming
to
protect
the
ecosystem.
Contaminants
produced
from
municipal,
industrial,
commercial,
and
agricultural
processes,
along
domestic
activities,
pose
serious
threats
aquatic
life
human
welfare.
Addressing
these
pollutants
requires
attention.
Various
physical,
chemical,
biological
approaches
are
used
purification,
each
showing
different
levels
efficacy.
Recent
advancements
wastewater
treatment
techniques,
such
as
Non-Thermal
Plasma
Discharge,
Genetic
Engineering,
Nanotechnology,
CRISPR-Cas9,
Elimination
Emerging
Organic
Pollutants
(EOPs),
use
durable
substrates
Metal-Organic
Frameworks
(MOFs)
covalent
organic
frameworks,
have
shown
promising
results.
For
example,
Nanotechnology
has
demonstrated
removal
efficiency
up
95%
heavy
metals,
while
MOFs
achieved
over
90%
pollutant
degradation.
effectiveness
techniques
varies
depending
on
type
environmental
factors.
Consequently,
selecting
appropriate
method
crucial
achieving
better
cost-effective
outcomes
treatment.
ACS Applied Energy Materials,
Год журнала:
2024,
Номер
7(20), С. 9121 - 9133
Опубликована: Окт. 8, 2024
The
preparation
of
clean
and
sustainable
renewable
energy
requires
the
development
bifunctional
electrocatalysts
with
high
stability
activity
for
oxygen
evolution
reaction
(OER)
hydrogen
(HER).
Doping
Ga
in
catalyst
can
enhance
catalytic
reaction.
In
this
study,
we
added
different
amounts
to
FeCoNiCuTi
HEAs
make
(FeCoNiCuTi)100–xGax
(x
=
1,
2,
3,
5,
10,
16.67)
a
cost-effective
HER/OER
electrocatalyst
that
showed
excellent
electrocatalytic
alkaline
electrolyte.
At
current
density
10
mA/cm2,
it
has
an
overpotential
47
mV,
Tafel
slope
35.75
mV/dec,
electric
double-layer
capacitance
36.8
mF/cm2,
which
performance
HER
same
density,
OER
is
345.56
33.9
31.24
comparable
overcapacitance
inert
catalyst.
This
makes
highly
efficient
integral
water
splitting.
Density
functional
theory
(DFT)
calculations
have
shown
chemical
complexity
provides
strong
synergistic
effect
changing
electronic
structure.
work
focuses
on
possibility
adding
elements
high-entropy
alloys
HER/OER.
The Journal of Physical Chemistry Letters,
Год журнала:
2023,
Номер
14(50), С. 11400 - 11411
Опубликована: Дек. 11, 2023
The
presence
of
transition-metal
single-atom
catalysts
effectively
enhances
the
interaction
between
substrate
and
reactant
molecules,
thus
exhibiting
extraordinary
catalytic
performance.
In
this
work,
we
for
first
time
report
a
facile
synthetic
procedure
placing
highly
dispersed
Ru
single
atoms
on
stable
CNF(ZnO)
nanocages.
We
unravel
atomistic
nature
in
CNF(ZnO)/Ru
systems
using
advanced
HAADF-STEM,
HRTEM,
XANES
analytical
methods.
Density
functional
theory
calculations
further
support
ruthenium
sites
system.
Our
work
demonstrates
excellent
photocatalytic
ability
system
with
respect
to
H2
production
(5.8
mmol
g-1
h-1)
reduction
CO2
CH3OH
[249
μmol
(g
catalyst)-1]
apparent
quantum
efficiencies
3.8%
1.4%
generation,
respectively.
studies
unambiguously
demonstrate
atomically
catalysts,
which
greatly
enhance
charge
transfer,
facilitating
aforementioned
redox
reactions.
Catalysts,
Год журнала:
2023,
Номер
13(6), С. 1010 - 1010
Опубликована: Июнь 16, 2023
The
synthesis
of
CaCO3/Cu2O/GO
nanocomposites
was
developed
by
sol-gel
auto-combustion
method.
analysis
structure
completed
on
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectroscopy
(FTIR),
Raman
spectroscopy,
and
environmental
scanning
electron
microscopy
(ESEM).
XRD
spectra
the
matched
crystal
CaCO3/Cu2O.
average
size
20
nm
for
Cu2O
25
CaCO3
nanoparticles.
FTIR
data
showed
absorption
bands
GO.
confirmed
formation
GO
sheets.
ESEM
micrographs
displayed
spherical
nanoparticles
dispersed
in
photoelectron
peaks
Cu
2p,
O
1s,
C
3s,
Ca
2p.
optical
revealed
an
band
around
450
nm.
calcium
content
increase
led
to
a
decrease
energy
gap
from
2.14
1.5
eV.
production
hydrogen
NaBH4
across
methanolysis
reaction
accelerated
nanocomposites.
Therefore,
these
are
superior
catalytic
systems.
