Molecules,
Journal Year:
2023,
Volume and Issue:
28(16), P. 6137 - 6137
Published: Aug. 19, 2023
To
address
the
challenges
associated
with
weak
affinity
and
difficult
separation
of
biochar,
we
developed
chitosan-biochar
hydrogel
beads
(CBHBs)
as
an
efficient
solution
for
removing
reactive
brilliant
blue
(RBB
KN-R)
from
wastewater.
The
adsorption
behavior
mechanism
RBB
KN-R
onto
CBHBs
were
extensively
studied.
Notably,
capacity
showed
pH-dependence,
highest
was
observed
at
pH
2.
process
well
fitted
pseudo-second-order
kinetic
model
intraparticle
diffusion
model.
Film
both
responsible
CBHBs.
At
298.15
K,
maximum
qm
determined
to
be
140.74
mg/g,
higher
temperatures
favoring
process.
A
complex
involving
π-π
interactions,
electrostatic
attraction,
hydrophobic
interaction,
hydrogen
bonding
found
contribute
overall
experimental
data
discovered
coexisting
substances
elevated
ionic
strength
hindered
capacity.
Significantly,
after
three
cycles
adsorption-desorption,
maintained
above
95%
KN-R.
These
promising
results
imply
that
are
a
durable
cost-effective
adsorbent
removal
dyes
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(7), P. 419 - 419
Published: June 30, 2024
The
biomass
filtrate
of
the
endophytic
bacterial
strain
Bacillus
amyloliquefaciens
Fa.2
was
utilized
for
eco-friendly
production
silver
nanoparticles
(Ag-NPs).
yellowish-brown
color’s
optical
properties
showed
a
maximum
surface
plasmon
resonance
at
415
nm.
morphological
and
elemental
composition
analysis
reveals
formation
spherical
shapes
with
sizes
5–40
nm,
Ag
ion
comprises
major
component
produced
Ag-NPs.
X-ray
diffraction
confirmed
crystalline
structure,
whereas
dynamic
light
scattering
high
stability
synthesized
Ag-NPs
polydispersity
index
0.413
negative
zeta
potential
value.
photocatalytic
experiment
efficacy
to
degrade
methylene
blue
percentages
73.9
±
0.5
87.4
0.9%
under
sunshine
UV
irradiation,
respectively,
compared
39.8%
dark
conditions
after
210
min.
Additionally,
reusability
still
more
active
fifth
run,
percentage
decrease
11.6%
first
run.
Interestingly,
biogenic
superior
antimicrobial
activity
against
different
pathogenic
Gram-negative
bacteria
(MIC
=
6.25
µg
mL−1),
Gram-positive
12.5
uni-
multicellular
fungi
mL−1).
Moreover,
biosynthesized
could
target
cancer
cells
(Pc3
Mcf7)
low
concentrations
normal
cell
(Vero)
lines.
IC50
is
383.7
4.1
mL−1
Pc3
(2.5
3.5
mL−1)
McF7
(156.1
6.8
Overall,
bacterially
multifunctional
features
be
used
in
environmental
catalysis
biomedical
applications.
Physical Chemistry Chemical Physics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
comprehensive
analysis
of
Bi
x
O
y
Br
z
has
been
carried
out
using
first-principles
density-functional
theory
(DFT)
to
explore
the
electronic
structure,
energy
band
and
essential
properties
related
its
photocatalytic
performance.
Crystals,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1158 - 1158
Published: July 26, 2023
Based
on
density
functional
theory
(DFT),
theoretical
models
of
three
kinds
lanthanide
rare
earth
metal
ion-doped
γ-Bi2MoO6
were
constructed
(Ln-BMO
(Ln=Gd,
Ho,
Yb)).
The
geometric
structure,
electronic
and
optical
properties
the
model
calculated,
influence
doped
Ln3+
ions
structures
system
was
analyzed.
results
revealed
that
substitution
smaller
ionic
radius
for
Bi3+
caused
a
contraction
lattice
parameters.
At
same
time,
contribution
[Ln]4d
near
valence
band
conduction
reduced
bandwidth
γ-Bi2MoO6,
forming
Ln-O
bond
with
different
strengths
to
obtain
higher
charge
conductivity
charge-separation
ability.
Secondly,
have
strongly
charge,
which
leads
appearance
absorption
bands
in
infrared
region
part
visible
region.
This
reduces
reflection
region,
improves
utilization
rate,
delays
loss
electron
energy,
promotes
phase
matching
And
Gd3+-doped
has
better
photocatalytic
activity
than
other
Ln3+-doped
system.
research
provides
insights
into
also
strategies
modification
nanomaterials.
