Tuijin Jishu/Journal of Propulsion Technology,
Journal Year:
2023,
Volume and Issue:
44(6), P. 4547 - 4565
Published: Dec. 10, 2023
This
review
paper
highlights
the
potential
of
graphene
nanocomposites
for
various
applications
in
nanotechnology
and
focuses
on
properties
graphene/CdS
nanocomposite,
which
has
shown
enhanced
finds
diverse
industries.
work
discusses
incorporation
transition
metals
such
as
Ni,
Cu,
Zn,
Mn,
Fe
into
their
resultant
properties,
including
increased
surface
activities,
optronics,
mechanical
thermal
stability,
photocatalytic
activity.
provides
valuable
insights
metal-doped
a
wide
range
applications.
Materials,
Journal Year:
2024,
Volume and Issue:
17(4), P. 892 - 892
Published: Feb. 15, 2024
In
this
study,
the
synthesis
of
biologically
active
copper(II)
complex
[Cu(im)2]Cl2
was
achieved
using
a
reported
method.
Subsequently,
strategically
grafted
onto
graphene
oxide,
resulting
in
formation
nanocomposite
denoted
as
copper(II)-complex-grafted
oxide
(Cu-GO).
The
comprehensive
characterization
Cu-GO
conducted
through
various
techniques,
including
X-ray
diffraction
(XRD),
Fourier-transform
infrared
spectroscopy
(FT-IR),
UV-visible
spectroscopy,
emission
spectra
analysis,
photoelectron
(XPS),
and
Copper
K-edge
Absorption
Near
Edge
Structure
(XANES)
spectroscopy.
antibacterial
efficacy
compounds
assessed
disk
diffusion
microbroth
dilution
methods.
Notably,
copper
exhibited
highest
effectiveness,
showcasing
Minimal
Inhibitory
Concentration
(MIC)
value
500
µL
against
Klebsiella
bacteria.
activities
all
were
systematically
screened,
revealing
superior
performance
compared
to
standalone
compounds.
Expanding
scope
investigation,
we
explored
antioxidant
anti-obesity
complexes
organisms.
results
underscore
promising
directions
for
further
exploration
diverse
health-related
applications
these
Moreover,
photocatalytic
evaluated
under
sunlight
irradiation.
Cu-GO,
terms
percentage
inhibition
at
concentration
200
mg/mL,
values
41%
45%,
respectively.
Additionally,
composite
exceptional
efficacy,
achieving
degradation
efficiency
74%
RhB
irradiation,
surpassing
both
graphite
GO.
These
findings
not
only
demonstrate
enhanced
biological
activity,
but
also
highlight
notable
level
moderate
performance.
Such
dual
functionality
underscores
potential
versatility
nanocomposites
across
applications,
blending
heightened
with
controlled
photocatalysis.
Our
study
offers
valuable
insights
into
multifunctional
attributes
nanocomposites,
thereby
paving
way
their
broader
utilization
fields.
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(4), P. 267 - 267
Published: April 17, 2024
The
use
of
hydrogen
peroxide
(produced
in
situ
or
ex
situ)
as
the
main
agent
oxidative
processes
environmental
pollutant
removal
is
widely
studied.
degradation
water
pollutants,
such
dyes,
pharmaceuticals,
cosmetics,
petroleum
derivatives,
and
even
pathogens,
has
been
successfully
obtained
by
different
techniques.
This
review
gives
an
overview
more
recent
methods
developed
to
apply
mediated
H2O2
other
reactive
oxygen
species
(ROS)
catalysis,
with
particular
attention
strategies
(Fenton-like
Bio-Fenton,
photo-
electro-catalysis)
materials
employed.
A
wide
discussion
about
characteristics
specifically
studied
for
activation,
well
their
chemical
composition
morphology,
was
carried
out.
Moreover,
interesting
generation
enzymes
were
also
presented
efficiency
applicability
compared
Fenton
electro-Fenton
discussed
above.
Bio-Fenton
bi-enzymatic
ROS
seems
be
attractive
scalable,
although
not
yet
applied
full-scale
plants.
critical
feasibility,
criticalities,
perspectives
all
considered
completes
this
review.
IGI Global eBooks,
Journal Year:
2025,
Volume and Issue:
unknown, P. 147 - 178
Published: March 14, 2025
Aerogels
have
emerged
as
promising
catalyst
supports
due
to
their
high
surface
area,
tunable
porosity,
and
tailored
chemistry.
This
review
explores
the
catalytic
application
of
aerogels
in
various
reactions,
including
heterogeneous
catalysis,
photocatalysis,
enzymatic
catalysis.
Aerogel-based
catalysts
exhibit
enhanced
activity,
selectivity,
stability
compared
traditional
catalysts.
The
unique
properties
aerogels,
such
surface-to-volume
ratio
uniform
pore
structure,
facilitate
efficient
mass
transfer
active
site
accessibility,
leading
improved
reaction
kinetics.
Moreover,
ability
functionalize
aerogel
surfaces
enables
immobilization
species,
further
enhancing
performance.
highlights
recent
advances
future
prospects
field
aerogel-based
emphasizing
significance
versatile
effective
for
a
wide
range
industrial
environmental
applications
ChemEngineering,
Journal Year:
2024,
Volume and Issue:
8(3), P. 47 - 47
Published: May 1, 2024
A
straightforward,
fast
and
efficient
analytical
method
was
developed
which
utilizes
a
magnetic
composite
called
three-dimensional
graphene
(3D-G@Fe3O4)
as
an
adsorbent
to
recover
nitrite
ions
(NO2−)
from
environmental
water
samples.
The
investigation
into
the
synthesized
contained
examination
of
its
morphology,
chemical
composition,
structural
attributes,
properties.
This
comprehensive
analysis
conducted
using
various
instrumental
techniques,
including
Fourier
transform-infrared
spectroscopy
(FT-IR),
scanning
electron
microscopy
(SEM),
Raman
spectroscopy,
X-ray
diffraction
(XRD),
Brunauer-Emmett-Teller
(BET),
Barrett-Joyner-Halenda
(BJH),
vibrating
sample
magnetometry
(VSM).
surface
activated
by
adding
cetyltrimethylammonium
bromide
(CTAB)
solution.
To
improve
selectivity
sensitivity
method,
were
reacted
with
sulfanilic
acid
chromotropic
sequentially.
An
orange-red
azo-dye
complex
formed
in
presence
clear
absorbance
peak
at
514
nm.
effect
main
experimental
parameters
such
pH
solution,
dosage,
CTAB
dosage
explored,
optimization
process
performed
central
design
(CCD).
linear
dynamic
range
(20–100
ng
mL−1)
determined
under
optimal
circumstances,
yielding
reasonable
determination
coefficient
(R2,
0.9993),
detection
limit
5.12
mL−1,
enrichment
factor
167,
precision
values
1.0%
intraday
2.9%
inter-day.
methodology
successfully
identified
minute
samples
relative
recoveries
that
varied
between
96.05
101.6
mL−1.
ACS symposium series,
Journal Year:
2024,
Volume and Issue:
unknown, P. 465 - 495
Published: May 15, 2024
Hydrogen
is
the
most
effective
and
sustainable
substitute
for
fossil
fuels.
The
reactions
associated
with
generation
of
hydrogen
have
been
focus
much
research
in
past.
To
date,
a
myriad
catalysts
reported
to
achieve
high
HER
rates.
With
combinations
various
catalyst,
graphene
derivatives
identified
as
impactful
co-catalysts
support
catalyst.
Particularly,
performances
oxide
reduced
co-catalyst
discussed
this
chapter.
Additionally,
semiconductors,
such
metals
sulfides
metal
oxides,
well
heteroatoms,
demonstrated
detail.
This
chapter
focuses
on
role
modified
sheets
migrating
electrons
from
conduction
band
reactive
species
higher
rate.
few
mechanisms
elaborate
migration
holes
electrons.
are
actually
facilitated
by
due
their
unique
structure
properties
(Hierarchical
Network,
Large
Specific
Surface
Area,
Diverse
Pore
Distribution,
Great
Light
Absorption
Capacity,
Other
Heteroatoms).
Various
composite
Graphene
Metal
Sulfides,
Oxides
other
Heteroatoms
also
detail
demonstrate
change
performance
composition.
