ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(45), P. 62171 - 62184
Published: Oct. 30, 2024
Both
the
sluggish
kinetics
of
Fe(II)
regeneration
and
usage
restriction
H2O2
have
severely
hindered
scientific
progress
Fenton
reaction
toward
practical
applications.
Herein,
a
reduction
strategy
activated
hydrogen,
which
was
used
to
simultaneously
generate
accelerate
ferrous
in
Fenton-like
based
on
hydrogen
derived
from
H2,
proposed.
Two
types
composite
catalysts,
namely,
Pd/UiO-66(Zr)-2OH
Pd@UiO-66(Zr)-2OH,
were
successfully
prepared
by
loading
nano-Pd
particles
onto
outer
inner
pores
UiO-66(Zr)-2OH
different
modes,
respectively.
They
enhance
hydrogen.
The
characterization
results
analysis
scanning
electron
microscopy,
transmission
Fourier
transform
infrared
spectroscopy,
X-ray
diffraction,
photoelectron
spectroscopy
revealed
that
materials
prepared.
By
using
trace
amount
iron
without
adding
H2O2,
trimethoprim
(C0
=
20
mg·L–1),
as
target
pollutant,
could
be
nearly
100%
degraded
within
180
min
system
composed
these
two
materials.
cycle
self-generation
verified
detection
system.
Density
functional
theory
calculation
further
confirmed
pore-filled
Pd0
NPs,
main
catalytic
site
for
produce
under
combined
action
oxygen.
Pd@UiO-66(Zr)-2OH
had
excellent
stability
after
multiple
applications
(at
least
6
cycles),
all
resulted
removal
trimethoprim.
degradation
efficiency
TMP
gradually
decreased
97
80%
six
cycles.
paramagnetic
resonance
with
classical
radical
burst
experiments
pathways
hydroxyl
radicals
singlet
oxygen
reactive
particles.
Materials,
Journal Year:
2024,
Volume and Issue:
17(4), P. 928 - 928
Published: Feb. 17, 2024
Landfill
leachate
(LLCH)
disposal
poses
challenges
due
to
high
pollutant
concentrations.
This
study
investigates
the
use
of
biochar
(BC)
derived
from
wheat
straw
for
nitrogen
content
reduction.
Laboratory
experiments
evaluated
BC's
adsorption
capacity
(qm)
removal
ammonium
chloride
solution
(NH4Cl)
and
LLCH,
along
with
testing
isotherm
models.
The
results
demonstrated
that
BC
was
more
efficient
(95.08%)
than
commercial
activated
carbon
AC
(93.11%),
blank,
in
adsorbing
NH4Cl.
superior
performance
may
be
attributed
its
higher
(57.74%)
observed
through
elemental
analysis.
Lower
BC/LLCH
LLCH's
complex
chemical
matrix.
Langmuir
model
best
described
BC/NH4Cl
(qm
=
0.5738
mg/g).
AC/NH4Cl
data
also
fitted
into
(R2
˃
0.9)
a
qm
0.9469
mg/g,
26.667
mg/g
˂
obtained
BC/LLCH;
gave
using
Jovanovich
(which
follows
Langmuir's
assumptions).
mean
energy
values
estimated
AC/NH4Cl,
BC/NH4Cl,
processes
were
353.55,
223.61
kJ/mol,
respectively,
suggesting
they
are
all
chemisorption
ion
exchange
influenced
their
processes.
Freundlich
constant
(1/n)
value
suggests
average
BC/LLCH.
followed
Harkins-Jura
(R2:
0.9992),
multilayered
(or
mesopore
filling).
In
conclusion,
shows
promising
potential
landfill
remediation,
offering
capabilities
demonstrating
compatibility
various
research
lays
groundwork
further
exploration
other
biochar-based
materials
addressing
environmental
associated
contamination.
Fermentation,
Journal Year:
2024,
Volume and Issue:
10(2), P. 112 - 112
Published: Feb. 19, 2024
2,3,5-trimethylpyrazine
(TMP),
as
a
volatile
heterocyclic
nitrogen
compound,
has
wide
range
of
applications.
To
explore
an
efficient
and
environmentally
friendly
way
to
produce
TMP,
Bacillus
strains
were
isolated
from
Daqu
using
traditional
separation
purification
methods.
The
fermentation
products
detected
by
gas
chromatography–mass
spectrometry
(GC-MS),
the
species
relationship
was
analyzed
morphological
phylogenetic
tree
construction.
Single
factors
selected
optimize
process
TMP
production,
Box–Behnken
design
used
for
response
surface
testing.
LC-6
strain
amyloliquefaciens,
its
contained
with
relatively
high
value
0.071
±
0.011
mg/g,
indicating
that
potentially
valuable
TMP-producing
bacterium.
results
single-factor
testing
showed
temperature,
bottle
capacity,
water
addition
significantly
affected
production.
analysis
revealed
order
influence
on
yield
follows:
>
temperature
capacity.
Response
optimization
optimal
parameters
wheat
medium
37
°C,
capacity
100
g/250
mL,
39
mL.
Under
these
conditions,
average
production
0.446
0.052
which
0.375
mg/g
higher
than
obtained
before
optimization.
Compared
previous
period,
indeed
increased,
providing
basis
further
research
solid-state
synthesis.
