Photochem,
Journal Year:
2022,
Volume and Issue:
2(2), P. 272 - 298
Published: March 30, 2022
The
solar
motivated
photoelectrochemical
(PEC),
used
in
water
splitting
systems,
shows
superior
talent
converting
energy
the
form
of
cleaning
and
sustaining
a
chemical
evolution.
PEC
systems
present
by
integrating
photoelectrode,
which
involves
light-harvesting
to
absorb
energy,
thereby
introducing
an
interlayer
for
transformation
photogenerated
electrons
holes,
along
with
co-catalyst
trigger
oxidation
reduce
reactions.
In
this
review,
we
describe
variety
two-dimensional
(2D)
layered
photoanodes
photocathodes,
such
as
graphitic
carbon
nitrides,
transition
metal
dichalcogenides,
double
hydroxides,
MXenes,
co-catalysts
assembly
combined
photoelectrodes
belonging
oxygen
evolution
and/or
hydrogen
basic
principles
associated
physicochemical
possessions
relating
unified
catalytic
reactions
have
been
investigated.
Additionally,
mechanisms
attributing
relationship
2D
incorporated
supplementary
discussion.
improvement
strategies,
include
construction
heterostructures,
surface
functionalization,
formations
heterojunctions,
also
discussed.
issues
challenges
relevant
field
acknowledged
facilitating
future
research,
indicating
optimized
conversion
activity
corresponding
splitting.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Dec. 14, 2023
Abstract
Industrial
chemical
pollutants
such
as
methylene
blue
(MB)
dye
are
released
into
the
water
body
and
potentially
cause
harm
to
human
aquatic
biosphere.
Therefore,
this
study
aims
synthesize
eco-friendly
nanocatalysts,
i.e.,
reduced
graphene
oxide
(rGO),
zinc
(ZnO),
oxide-zinc
(rGO@ZnO)
nanocomposites,
for
efficient
photocatalytic
degradation
of
MB
dye.
A
graphite
rod
was
obtained
from
waste
dry
cell
batteries
electrochemical
exfoliation
synthesis
(GO)
rGO.
For
ZnO
rGO@ZnO
Croton
macrostachyus
leaf
extract
used
a
reducing
capping
agent.
The
synthesized
nanocatalysts
were
characterized
using
UV–Vis
spectrophotometer,
Fourier
transform
infrared
spectroscopy,
X-ray
diffraction,
scanning
electron
microscopy
with
energy-dispersive
X-ray.
rGO,
ZnO,
applied
direct
sunlight
irradiation.
At
optimum
parameters,
efficiency
reached
up
66%,
96.5%,
99.0%,
respectively.
Furthermore,
kinetics
photodegradation
reaction
based
on
follow
pseudo-first-order
rate
constant
2.16
×
10
–3
min
−1
,
4.97
−3
5.03
Lastly,
promotes
low
catalyst
load
(20
mg)
Journal of Environmental Management,
Journal Year:
2023,
Volume and Issue:
339, P. 117896 - 117896
Published: April 18, 2023
The
production
of
increasing
quantities
by-products
is
a
key
challenge
for
modern
society;
their
valorisation
-
turning
them
into
valuable
compounds
with
technological
applications
the
way
forward,
in
line
circular
economy
principles.
In
this
review,
conversion
bones
(by-products
agro-food
industry)
bone
char
described.
Bone
obtained
process
pyrolysis,
which
converts
organic
carbon
an
inorganic
graphitic
one.
Differently
from
standard
biochar
plant
origin,
however,
also
contains
calcium
phosphates,
main
component
(often
hydroxyapatite).
combination
phosphate
and
makes
unique
material,
different
possible
uses.
Here
chars'
environmental
remediation,
sustainable
agriculture,
catalysis
electrochemistry
are
discussed;
several
aspects
considered,
including
used
to
prepare
char,
preparation
conditions,
how
these
affect
properties
materials
(i.e.
porosity,
surface
area)
its
functional
properties.
advantages
limitations
chars
comparison
traditional
discussed,
highlighting
directions
research
should
take
performances
improve.
Moreover,
analysis
on
sustainability
use
included.
Particuology,
Journal Year:
2023,
Volume and Issue:
83, P. 212 - 231
Published: June 16, 2023
As
one
of
the
most
rapidly
expanding
materials,
hydrogels
have
gained
increasing
attention
in
a
variety
fields
due
to
their
biocompatibility,
degradability
and
hydrophilic
properties,
as
well
remarkable
adhesion
stretchability
adapt
different
surfaces.
Hydrogels
combined
with
carbon-based
materials
possess
enhanced
properties
new
functionalities,
particular,
conductive
become
area
research
field
science.
This
review
aims
provide
comprehensive
overview
up-to-date
examination
recent
developments
synthesis,
applications
incorporating
several
typical
carbon
nanoparticles
such
nanotubes,
graphene,
dots
nanofibers.
We
summarize
key
techniques
mechanisms
for
synthesizing
various
composite
exceptional
represented
wearable
sensors,
temperature
supercapacitors
human-computer
interaction
reported
recently.
The
mechanical,
electrical
sensing
are
thoroughly
analyzed
disclose
role
these
factors
microstructure.
Finally,
future
development
based
on
is
discussed
including
challenges
possible
solutions
terms
microstructure
optimization,
mechanical
other
promising
electronics
multifunctional
materials.
ACS Engineering Au,
Journal Year:
2023,
Volume and Issue:
3(6), P. 443 - 460
Published: Nov. 1, 2023
Adsorption
is
a
promising
technique
for
the
removal
of
persistent
contaminants,
since
it
relatively
cheap
process
with
low
energy
requirements
and
does
not
produce
secondary
contamination.
However,
large-scale
implementation
an
adsorption
usually
involves
dual
column
either
pressure
swing
or
temperature
operations.
Therefore,
reusability
adsorbents
key
characteristic
to
consider
evaluate
but
often
overlooked
during
development
new
materials.
To
be
reused,
adsorbent
should
successfully
release
contaminant
by
desorption
regeneration
step
without
compromising
chemical
physical
stability
matrix.
The
efficiency
desorption/regeneration
methods
depends
greatly
on
characteristics
nature
adsorbents,
mechanisms
responsible
adsorbent–adsorbate
interactions.
This
review
focuses
strategies
that
have
been
used
biobased
hydrogels
hydrogel
composites,
materials
applied
in
wastewater
contaminants.
can
divided
into
methods.
include
use
agents,
photocatalytic
oxidation,
CO2
bubbling;
thermal
ultrasonic
treatments.
These
shown
different
efficiencies
as
well
specific
advantages
drawbacks
need
considered
select
most
suitable
method
application.
