Molecules,
Journal Year:
2022,
Volume and Issue:
27(23), P. 8522 - 8522
Published: Dec. 3, 2022
In
this
study,
polyethyleneimine
was
combined
with
magnetic
Fe3O4
nanoparticles
through
the
bridging
of
carboxyl-functionalized
ionic
liquid,
and
laccase
loaded
onto
carrier
by
Cu2+
chelation
to
achieve
immobilization
(MCIL-PEI-Cu-lac).
The
characterized
Fourier
transform
infrared
spectroscopy,
scanning
electron
microscope,
thermogravimetric
analysis,
X-ray
diffraction
hysteresis
loop
so
on.
MCIL-PEI-Cu-lac
has
good
ability;
its
loading
activity
retention
could
reach
52.19
mg/g
91.65%,
respectively.
Compared
free
laccase,
thermal
stability
storage
have
been
significantly
improved,
as
well.
After
6
h
at
60
°C,
51.45%
still
be
retained,
81.13%
remained
after
1
month
3
°C.
pollutants
removal
test,
rate
2,4-dichlorophenol
(10
mg/L)
100%
within
10
h,
efficiency
maintained
60.21%
repeated
use
for
8
times.
addition,
also
a
effect
on
other
phenolic
(such
bisphenol
A,
phenol,
4-chlorophenol,
etc.).
Research
results
indicated
that
an
efficient
strategy
biodegrade
developed.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(8), P. 3541 - 3541
Published: April 17, 2023
Nowadays,
the
fast
expansion
of
economy
and
industry
results
in
a
considerable
volume
wastewater
being
released,
severely
affecting
water
quality
environment.
It
has
significant
influence
on
biological
environment,
both
terrestrial
aquatic
plant
animal
life,
human
health.
Therefore,
treatment
is
global
issue
great
concern.
Nanocellulose’s
hydrophilicity,
easy
surface
modification,
rich
functional
groups,
biocompatibility
make
it
candidate
material
for
preparation
aerogels.
The
third
generation
aerogel
nanocellulose-based
aerogel.
unique
advantages
such
as
high
specific
area,
three-dimensional
structure,
biodegradable,
low
density,
porosity,
renewable.
opportunity
to
replace
traditional
adsorbents
(activated
carbon,
activated
zeolite,
etc.).
This
paper
reviews
fabrication
process
divided
into
four
main
steps:
nanocellulose,
gelation
solvent
replacement
nanocellulose
wet
gel,
drying
Furthermore,
research
progress
application
aerogels
adsorption
dyes,
heavy
metal
ions,
antibiotics,
organic
solvents,
oil-water
separation
reviewed.
Finally,
development
prospects
future
challenges
are
discussed.
Bioresource Technology,
Journal Year:
2023,
Volume and Issue:
381, P. 129144 - 129144
Published: May 11, 2023
This
study
reports
a
biocatalytic
system
of
immobilized
laccase
and
3D
printed
open-structure
biopolymer
scaffoldings.
The
scaffoldings
were
computer-designed
using
polylactide
(PLA)
filament.
immobilization
onto
the
PLA
scaffolds
optimized
with
regard
to
pH,
enzyme
concentration,
time.
Laccase
resulted
in
small
reduction
reactivity
(in
terms
Michaelis
constant
maximum
reaction
rate)
but
led
significant
improvement
chemical
thermal
stability.
After
20
days
storage,
free
showed
80%
35%
retention
initial
enzymatic
activity,
respectively.
on
achieved
10%
removal
estrogens
from
real
wastewater
as
compared
reusability
potential.
Results
here
are
promising
also
highlight
need
for
further
improve
activity
reusability.
Critical Reviews in Environmental Science and Technology,
Journal Year:
2023,
Volume and Issue:
53(18), P. 1684 - 1708
Published: Feb. 23, 2023
AbstractRemoving
recalcitrant
organic
contaminants
from
the
soil
via
sustainable
and
environmentally
friendly
technologies
are
essential
for
environment
human
health.
Microbial
enzyme
is
a
promising
biocatalyst,
particularly
in
environmental
bioremediation.
To
improve
their
stability
catalytic
ability,
enzymes
often
immobilized
on
supporting
materials.
Nevertheless,
most
appropriate
immobilization
technology
materials
must
be
selected
advance
to
achieve
high
eco-remediation
efficiency.
This
review
highlighted
recent
advances
provided
future
perspectives
of
techniques
materials,
with
particular
attention
ensuring
basic
features
possibilities
contaminated
soil.
The
bioavailability,
biodegradability
cost
carriers
have
limited
industrial
application
commercialization
remediation
soil,
which
was
hereby
thoroughly
reviewed.
Finally,
directions,
including
minimizing
production
costs,
inexpensive
scalable
carriers,
methods,
were
offer
new
soil.HIGHLIGHTSImmobilized
approaches
classified
introduced.Immobilized
tremendous
potential
eco-remediation.The
main
mechanism
presence
suitable
microenvironment.Bioavailability,
accessibility
large-scale
applications.Future
directions
proposed.Keywords:
Eco-remediationenzyme
immobilizationimmobilization
technologyorganic
contaminantssoil
remediationsupporting
materialsHANDLING
EDITORS:
Frederic
Coulon
Lena
Q.
Ma
Disclosure
statementNo
conflict
interest
reported
by
authors.Additional
informationFundingThe
authors
gratefully
acknowledge
financial
supports
National
Key
R
&
D
Program
Science
Technology
China
(2020YFC1808801),
Beijing
Postdoctoral
Research
Foundation
(2022ZZ124),
Fundamental
Funds
University
Civil
Engineering
Architecture
(X22017).
