Catalysts,
Journal Year:
2024,
Volume and Issue:
14(11), P. 762 - 762
Published: Oct. 29, 2024
China
is
a
significant
global
producer
and
consumer
of
pesticides
antibiotics,
with
their
excessive
use
leading
to
substantial
water
pollution
that
poses
challenges
for
subsequent
treatment.
Photocatalytic
degradation,
leveraging
renewable
solar
energy,
presents
an
effective
approach
decomposing
organic
pollutants
reducing
residual
contaminant
levels
in
bodies.
This
represents
one
way
addressing
environmental
challenges.
paper
classifies
representative
photocatalytic
materials
by
structural
design
degradation
principles
including
MOFs
(Metal–Organic
Frameworks),
metal-
nonmetal-doped,
mesoporous
material-loaded,
carbon
quantum
dot-modified,
floatation-based,
heterojunction
photocatalysts.
We
also
discuss
research
on
pathways
reaction
mechanisms
antibiotics.
Of
particular
importance
are
several
key
factors
influencing
efficiency,
which
summarized
within
this
work.
These
include
the
separation
charge
transfer
rate
catalyst
surface
carriers,
wide-spectrum
response
capabilities
photocatalysts,
as
well
persulfate
activation
efficiency.
Furthermore,
emphasis
placed
role
played
intrinsic
driving
forces
such
built-in
electric
fields
catalytic
systems.
Moreover,
introduces
promising
composite-structure
technologies
from
both
perspectives
(e.g.,
Aerogel-based
composites)
composite-method
molecularly
imprinted
synthesis
method).
latest
development
status,
along
future
prospects,
presenting
valuable
insights
pollutant
targets.
work
aims
facilitate
efficient
materials,
while
providing
theoretical
references
governance
technologies.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 21, 2024
Abstract
Anion
defect
engineering
is
proven
to
be
an
efficient
approach
reconstruct
the
electronic
configuration
of
carbon‐based
magnetoelectric
materials
for
targeted
modulation
electromagnetic
(EM)
performance.
However,
traditional
mono‐anionic
doping
suffers
from
low
concentration
and
lacks
diverse
polarization
mechanisms.
In
this
work,
multi‐anions
(N/S/F)
stepwise‐doped
carbon/Fe
3
C
composites
are
elaborately
constructed,
wherein
predesigned
N
defects
serve
as
activated
sites
anomalously
adopting
S
anions
(Step
I)
subsequent
F
II)
in
non‐marginal
areas
carbon
layer.
It
found
that
prefers
replace
pyrrolic
while
tends
form
dangling
bonds
with
site
adjacent
pyridinic
N.
Intriguingly,
besides
inherent
polarized
resonance
at
≈15
GHz,
customized
induce
new
resonances
≈10
GHz
≈15+
respectively.
Under
a
typical
multi‐polarization
effect
synergetic
magnetic
response,
N/S/F
harvest
broadest
bandwidth
8.28
(9.72–18
GHz)
2.55
mm,
covering
wide
frequency
range
almost
X
Ku
bands.
This
work
demonstrates
positive
impact
localized
multi‐defects
customization
on
expanding
microwave
absorption
bandwidth,
providing
valuable
insights
advanced
design
ultra‐broadband
absorbers.
Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: July 16, 2024
Abstract
Currently,
facing
electromagnetic
protection
requirement
under
complex
aqueous
environments,
the
bacterial
reproduction
and
organic
dye
corrosion
may
affect
composition
micro‐structures
of
absorbers
to
weaken
their
properties.
To
address
such
problems,
herein,
a
series
CoFe
2
O
4
@BCNPs
(cobalt
ferrite
@
bio‐carbon
nanoparticles)
composites
are
synthesized
via
co‐hydrothermal
calcining
process.
The
coupling
magnetic
cobalt
dielectric
derived
from
Apium
can
endow
composite
multiple
absorption
mechanisms
matched
impedance
for
effective
microwave
absorption,
attaining
bandwidth
8.12
GHz
at
2.36
mm
an
intensity
−49.85
dB
3.0
mm.
Due
ROS
(reactive
oxygen
species)
stimulation
ability
heavy
metal
ions
ferrite,
realizes
excellent
antibacterial
efficiency
99%
against
Gram
negative
bacteria
Escherichia
coli
.
Moreover,
loose
porous
layer
surface
stacked
promote
adsorption
methylene
blue
subsequent
eliminating,
high
removal
rate
90.37%
be
also
achieved.
This
paper
offers
new
insight
rational
design
composite's
component
micro‐structure
construct
multi‐functional
absorber
satisfying
demand
in
complicated
environments.
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Unique
structural
design
and
precise
compositional
adjustment
are
universally
accepted
as
effective
methods
for
the
enhancement
of
microwave
absorption
capacity.
