Clean Technologies,
Journal Year:
2024,
Volume and Issue:
7(1), P. 2 - 2
Published: Dec. 27, 2024
Strontium
(90Sr)
is
a
typical
radionuclide,
which
can
act
as
contaminant
and
poses
big
problem
for
the
eco-environment
if
left
untreated.
In
this
study,
an
original
nitrogen-doped
calcite
(N-CaCO3)
was
synthesized
using
solvothermal
calcination
method
used
to
remove
Sr(II)
from
simulated
water.
XRD,
SEM,
XPS
analyses
proved
that
N
successfully
doped
into
CaCO3,
resulting
in
porous
CaCO3
with
regular
morphology.
The
specific
surface
area
of
N-CaCO3
(136.53
m2/g)
reach
2.19-fold
greater
than
CaCO3.
results
based
on
batch
adsorption
data
indicated
pseudo-second-order
kinetic
model
(R2
=
0.9964)
ion
exchange
0.9859)
fitted
well.
as-synthesized
exhibited
better
performance
regard
low
concentrations
(below
64.5
mg/L)
compared
commercial
structural
analysis
suggested
Ca
played
pivotal
roles
process
mechanism
dominated
by
complexation.
This
study
fabricated
cleanup,
presenting
efficient
strategy
modulate
microstructure
or
other
materials,
enhance
its
performance.
Water,
Journal Year:
2024,
Volume and Issue:
16(12), P. 1749 - 1749
Published: June 20, 2024
Hydrothermal
carbonization
(HTC)
technology
transforms
organic
biomass
components,
such
as
cellulose
and
lignin,
into
valuable
carbon
materials,
gases
inorganic
salts
through
hydrolysis,
degradation
polymerization,
with
significant
advantages
over
traditional
methods
by
reducing
energy
consumption,
lowering
pollutant
emissions
enhancing
efficiency.
In
the
context
of
global
climate
change,
HTC
plays
a
critical
role
in
water
environment
management
addressing
industrial,
agricultural,
domestic
wastewater
challenges.
The
application
extends
to
treatment,
where
hydrochar
effectively
adsorbs
heavy
metals,
compounds,
anions,
thereby
improving
quality.
However,
challenges
remain,
optimizing
process
for
diverse
raw
managing
economic
costs,
environmental
social
impacts.
Future
research
policy
support
are
essential
advancing
technology.
By
reaction
mechanisms,
developing
catalysts,
promoting
international
cooperation,
can
significantly
contribute
towards
achieving
neutrality
goals
fostering
sustainable
development.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(20), P. 9346 - 9354
Published: May 8, 2024
Electrochemical
water
splitting
is
a
possible
way
of
realizing
sustainable
and
clean
hydrogen
production
but
challenging,
because
highly
active
durable
electrocatalyst
essential.
In
this
work,
we
integrated
heterogeneous
engineering
vacancy
defect
strategies
to
design
fabricate
heterostructure
(CoPv-MoxPv/CNT)
with
abundant
phosphorus
vacancies
attached
carbon
nanotubes
(CNTs).
The
defects
enabled
the
optimization
electronic
structure;
thereby,
electron-rich
low-valent
metal
sites
enhanced
ability
nonmetallic
P
capture
proton
H.
Meanwhile,
interface
between
bimetallic
phosphides
CNTs
realized
rapid
electron
transfer.
addition,
Co,
Mo,
species
in
electrocatalytic
process
exposed
increased
amounts
featuring
porous
nanosheet
structures,
which
facilitated
adsorption
reaction
intermediates
thus
evolution
performance.
particular,
optimized
CoPv-MoxPv/CNT
catalyst
possesses
an
overpotential
138
mV
at
current
density
10
mA
cm–2
long-term
stability
for
24
h.
This
work
offers
insights
possibilities
exploration
transition
metal-based
electrocatalysts
through
combining
multiple
synergistic
strategies.
