Nanohybrid layered clay composite decorated with polyaniline for intensified Cr(VI) removal through enhanced Cr(VI) reduction
Xiang Song,
Weilong Xiao,
Xing Chen
и другие.
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Год журнала:
2024,
Номер
697, С. 134474 - 134474
Опубликована: Июнь 5, 2024
Язык: Английский
Study on the bio-passivation of copper sulfide tailings combined with solid waste to inhibit acidic mine drainage
Journal of Water Process Engineering,
Год журнала:
2024,
Номер
61, С. 105253 - 105253
Опубликована: Апрель 15, 2024
Язык: Английский
Isolation and characterization of chromium-resistant bacteria and their effects on germination, growth, and Cr accumulation in Capsicum annum (L.) under Cr stress
Plant Physiology and Biochemistry,
Год журнала:
2024,
Номер
214, С. 108955 - 108955
Опубликована: Июль 22, 2024
Язык: Английский
Single-Chamber Microbial Fuel Cell with an Innovative Sensing Component for Real-Time Continual Monitoring of a Wide Range of Cr(VI) Concentrations in Wastewater
Biosensors,
Год журнала:
2025,
Номер
15(3), С. 158 - 158
Опубликована: Март 3, 2025
Hexavalent
chromium
(Cr(VI))
is
toxic,
carcinogenic,
and
harmful
to
biological
systems.
Common
detection
methods,
such
as
colorimetry,
atomic
absorption
spectrometry,
ion
chromatography,
systems,
can
only
be
used
in
the
laboratory
do
not
provide
real-time
feedback.
To
address
these
limitations,
current
study
cloned
ChrB
gene,
which
exhibits
high
specificity
detecting
Cr(VI),
ChrA
Cr(VI)
tolerance,
into
Escherichia
coli.
This
recombinant
strain,
ChrA–ChrB–E.
coli,
was
integrated
a
single-chamber
microbial
fuel
cell
for
accurate
continual
monitoring
over
wide
range
of
concentrations.
coli
thrived
temperatures
from
25
°C
45
pH
levels
between
5
8.
Its
ability
reduce
remained
consistent
across
forms,
carbon
sources,
oxyanions.
Cyclic
voltammetry
employed
verify
electrical
activity
biosensor.
The
biosensor
exhibited
limit
0.0075
mg/L.
Under
conditions
simulating
regulatory
emission
0.5
mg/L
industrial
wastewater,
achieved
response
time
20
s
during
operation.
When
tested
with
synthetic
wastewater
containing
concentrations
0.02
150
mg/L,
system
adaptability
facilitated
stable
(relative
standard
deviation
≤
2.7%).
Additionally,
biosensor’s
accuracy
(−1.73%
2.5%)
matched
that
traditional
batch
highlighting
its
suitability
aquatic
environments.
Язык: Английский
Optimization strategy for Cr(VI) removal in coke-based modular constructed wetlands: A comprehensive analysis of purification efficiency, removal mechanisms, and practical feasibility
Xinlu Xiao,
Xuhao Li,
Xiangling Zhang
и другие.
Journal of Environmental Management,
Год журнала:
2025,
Номер
381, С. 125231 - 125231
Опубликована: Апрель 7, 2025
Язык: Английский
Fate of hexavalent chromium reduction by using Halomonas maridiana EA1
Environmental Challenges,
Год журнала:
2024,
Номер
16, С. 100951 - 100951
Опубликована: Май 29, 2024
The
present
study
is
focused
on
the
reduction
of
hexavalent
chromium
by
using
isolated
bacterium
Halomonas
maridiana
EA1.
H.
EA1
has
shown
a
>90%
100
ppm
day
1
and
a>70%
1200
4.
ICP-OES
analysis
revealed
that
efficiently
reduced
into
trivalent
chromium.
occurrence
chrA
gene
in
EA1,
which
regulates
ChrA
(reductase)
enzyme,
may
be
associated
with
TEM
images
depicted
alteration
morphology
under
stress
conditions.
LCMS
result
illustrates
role
metabolites
regulating
two
main
pathways:
cell
wall
strengthening
biofilm
formation,
help
to
maintain
integrity.
Hence,
applications
such
dynamic
bacteria
can
useful
minimize
burden
soil
for
sustainability
ecosystem.
Язык: Английский
Nanohybrid Layered Clay Composite Decorated with Polyaniline for Intensified Cr(Vi) Removal Through Enhanced Cr(Vi) Reduction
Опубликована: Янв. 1, 2024
Hexavalent
chromium
(Cr(VI))
is
mainly
detected
as
a
harmful
anion
in
aquatic
ecosystems.
In
this
study,
novel
nanohybrid
layered
clay
composite
decorated
with
polyaniline
(PANI)
(PANI/LDH@MMt)
was
successfully
synthesized
by
layer-by-layer
assembly
strategy
and
utilized
for
Cr(VI)
removal.
Layered
double
hydroxide
(LDH)
montmorillonite
(MMt)
(LDH@MMt)
can
facilitate
elimination
through
reinforced
reduction.
Some
key
experimental
parameters
were
evaluated
detail
their
potential
impact
on
The
results
illustrated
that
PANI/LDH@MMt
displayed
high
removal
efficiency
(>99%)
at
most
appropriate
conditions
maintained
over
95%
performance
even
ionic
coexistence
natural
water
environments.
Kinetic
models,
isothermal
thermodynamic
analyses
also
employed
to
explore
the
behavior
PANI/LDH@MMt.
Finally,
mechanism
analysis
suggested
could
be
captured
electrostatic
interaction
of
-NH-+,
-N=+,
–OH2+,
exchange
LDH,
reduced
Cr(III)
-NH-.
Subsequently,
chelate
-N=,
−NH−,
−OH,
complex
OH-,
immobilized
MMt
cation
exchange.
This
study
presents
new
insight
into
reasonable
construction
highly
efficient
adsorbents
low
cost
Язык: Английский
Exploring bio-remediation strategies by a novel bacteria Micrococcus sp. strain HX in Cr(VI)-contaminated groundwater from long-term industrial polluted
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
289, С. 117474 - 117474
Опубликована: Дек. 6, 2024
Язык: Английский