SiO2
aerogel
is
a
good
thermal
insulation
material,
but
its
porous
nanostructure
makes
it
brittle
and
has
poor
mechanical
property.
with
elastic
property
was
prepared
by
combining
methyltrimethoxysilane
(MTMS)
hexadecyltrimethoxysilane
to
form
composite
organic
silane
precursor.
However,
properties
were
not
significantly
improved.
SiO2/phenolic-modified
modifying
thermosetting
phenolic
resin,
which
effectively
improved
the
of
aerogel.
The
results
show
that
when
molar
ratio
MTMS
in
range
0–0.05,
continue
improve
increase
introduction
hexadecyltrimethoxysilane.
maximum
compressive
strength
can
reach
0.03
MPa,
strain
tolerance
10–18%.
When
mass
resin
within
0–5.5,
modified
presents
nanoscale
gel
network
structure.
0.048
nearly
60%
higher
than
before
modification.
allowable
14.7–17.5%.
After
20
stress–strain
tests,
only
decreases
4%,
indicating
stability.
It
simultaneously
possessing
low
density
(0.176
g/cm3),
volume
shrinkage
rate,
conductivity.
conductivity
an
air
atmosphere
at
28
°C
0.057
W/(m·K).
sol–gel
reaction
atmospheric
drying
process
broad
application
prospects.
Langmuir,
Год журнала:
2024,
Номер
40(6), С. 2815 - 2829
Опубликована: Фев. 1, 2024
The
increasing
health
risks
posed
by
per-
and
polyfluoroalkyl
substances
(PFASs)
in
the
environment
highlight
importance
of
implementing
effective
removal
techniques.
Conventional
wastewater
treatment
processes
are
inadequate
for
removing
persistent
organic
pollutants.
Recent
studies
have
increasingly
demonstrated
that
metal–organic
frameworks
(MOFs)
capable
PFASs
from
water
through
adsorption
However,
there
is
still
constructive
discussion
on
potential
MOFs
adsorbing
large-scale
engineering
applications.
This
review
systematically
investigates
use
as
adsorbents
PFAS
treatment.
primarily
involved
a
comprehensive
analysis
existing
literature
to
understand
mechanisms
identify
factors
enhance
their
efficiency
PFASs.
We
also
explore
critical
aspects
regeneration
stability
MOFs,
assessing
reusability
long-term
performance,
which
essential
Finally,
our
study
highlights
challenges
using
MOFs.
Especially,
efficient
short-chain
with
hydrophilicity
major
challenge,
while
medium-
long-chain
frequently
susceptible
being
captured
multiple
synergistic
effects.
ion-exchange
force
may
be
key
solving
this
difficulty,
but
its
susceptibility
ion
interference
needs
addressed
practical
hope
can
provide
valuable
insights
into
well
advance
sustainable
utilization
field
treatment,
thereby
presenting
novel
perspective.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
317, С. 100018 - 100018
Опубликована: Янв. 1, 2024
With
the
increase
of
scale
animal
husbandry,
negative
effect
nitrogen
and
phosphorus,
antibiotics,
heavy
metals
other
pollutants
in
livestock
wastewater
has
been
increasing.
Natural
adsorption
materials
are
a
new
type
environmental
protection
that
have
attracted
attention
recent
years.
Many
researchers
developed
natural
using
microorganisms,
algae,
plant
derivatives
industrial
agricultural
wastes.
However,
there
no
systematic
review
regarding
adsorbents
for
purpose
to
treat
wastewater.
In
this
paper,
their
hazards
were
reviewed.
The
characteristics
such
introduced
detail,
research
progress
adsorbent
on
treatment
was
summarized.
This
is
intended
provide
ideas
references
development
application
adsorbent.
Nanomaterials,
Год журнала:
2023,
Номер
13(10), С. 1668 - 1668
Опубликована: Май 18, 2023
This
review
focuses
on
a
critical
analysis
of
nanocatalysts
for
advanced
reductive
processes
(ARPs)
and
oxidation
(AOPs)
designed
the
degradation
poly/perfluoroalkyl
substances
(PFAS)
in
water.
Ozone,
ultraviolet
photocatalyzed
ARPs
and/or
AOPs
are
basic
treatment
technologies.
Besides
nanomaterials
with
greater
potential
as
catalysts
PFAS
water,
perspectives
their
future
development,
considering
sustainability,
discussed.
Moreover,
brief
current
state
art
water
is
presented.
