Molecules,
Journal Year:
2024,
Volume and Issue:
29(24), P. 5841 - 5841
Published: Dec. 11, 2024
In
this
research,
we
produced
two
types
of
biochar
(BC)
using
cotton
stalks
as
raw
material
and
KOH
an
activator,
compared
their
performance
adsorption
mechanisms
in
the
removal
tetracycline
(TC)
methylene
blue
(MB)
from
wastewater.
The
results
showed
that
generated
both
procedures
formed
pores
connected
to
interior
had
extensive
microporous
mesoporous
structures.
molten
salt
approach
produces
with
a
higher
specific
surface
area,
larger
pore
size,
volume
than
impregnation
method,
maximum
area
3095
m
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(2)
Published: Jan. 15, 2025
ABSTRACT
Designing
efficient
photocatalyst
has
attracted
extensive
attention
for
treating
polluted
wastewater
containing
Cr
(VI).
In
this
work,
two
viologen/polyoxometalate
(POM)‐based
compounds
were
synthesized,
[Ni
(mimb)
2
(H
O)
4
(β‐Mo
8
O
26
)]·4H
(
1
)
and
[Zn
(mimb
=
1‐((3,5‐dimethylisoxazol‐4‐yl)methyl)‐[4,4′‐bipyridin]‐1‐ium),
through
a
hydrothermal
method
investigated
their
ability
of
photocatalytic
reduction
The
structures
1–2
characterized
by
single‐crystal
X‐ray
diffraction,
revealing
that
both
possess
zero‐dimensional
(0D)
structure
can
form
one‐dimensional
(1D)
chain
hydrogen
bondings.
Photocatalytic
experiments
demonstrate
compound
superior
performance
compared
to
.
Under
optimal
conditions
(pH
2,
15
mg
catalysts,
10
L
−1
(VI)
concentration),
completely
reduce
within
20
min,
while
requires
30
min.
Compounds
also
show
good
stability
after
reaction,
maintain
high
activity
five
reaction
cycles.
Additionally,
the
mechanism
was
studied,
free
radical
scavenging
its
main
active
species
are
e
−
,
h
+
˙O
nitroblue
tetrazolium
(NBT)
further
confirm
crucial
role
in
process.
activity,
stability,
recyclability
viologen/POM‐based
suggest
potential
application
treatment
The
novel
(Np)
4
CuP/CN-0.5
heterojunction
demonstrates
different
photocatalytic
degradation
mechanisms
when
applied
to
rhodamine
B
(RhB)
and
methylene
blue
(MB).
npj Clean Water,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Nov. 26, 2024
Adsorption
capacity
is
a
critical
indicator
of
adsorbent
performance,
its
assessment
often
requires
precise
but
complicated
measurements
adsorbate
concentration
in
the
liquid
phase.
This
study
presents
colorimetric
sensing
method
based
on
fabricated
model
for
directly
assessing
adsorption
colored
cations
through
absorbance
adsorbent.
The
exceptional
analytical
capability
proposed
was
demonstrated
by
rapid
determination
cation
single-cation
(Co(II),
Ni(II),
Cu(II),
and
U(VI))
systems,
mixed-cation
real
wastewater
samples.
Additionally,
series
cards
have
been
developed
to
enable
effective
real-time
monitoring
industrial
production,
resource
extraction,
treatment,
other
applications.
research
expected
significantly
enhance
methods
available
measurement.
