Catalysts,
Journal Year:
2023,
Volume and Issue:
13(1), P. 192 - 192
Published: Jan. 13, 2023
Nitrogen
oxides
(NOx)
pollutants
can
cause
a
series
of
environmental
issues,
such
as
acid
rain,
ground-level
ozone
pollution,
photochemical
smog
and
global
warming.
Photocatalysis
is
supposed
to
be
promising
technology
solve
NOx
pollution.
Graphitic
carbon
nitride
(g-C3N4)
metal-free
photocatalyst
has
attracted
much
attention
since
2009.
However,
the
pristine
g-C3N4
suffers
from
poor
response
visible
light,
rapid
charge
carrier
recombination,
small
specific
surface
areas
few
active
sites,
which
results
in
deficient
solar
light
efficiency
unsatisfactory
photocatalytic
performance.
In
this
review,
we
summarize
highlight
recent
advances
g-C3N4-based
photocatalysts
for
removal.
Firstly,
attempt
elucidate
mechanism
removal
process
introduce
photocatalyst.
Then,
different
kinds
modification
strategies
enhance
performance
are
summarized
discussed
detail.
Finally,
propose
significant
challenges
future
research
topics
on
removal,
should
further
investigated
resolved
interesting
field.
Water,
Journal Year:
2023,
Volume and Issue:
15(3), P. 384 - 384
Published: Jan. 17, 2023
Removing
organic
pollutants,
textile
dyes,
and
pharmaceutical
wastes
from
the
water
bodies
has
become
an
essential
requirement
for
a
safe
environment.
Therefore,
present
study
aimed
to
prepare
semiconductor
zinc
oxide
nanoparticles
(ZnO
NPs)
plasmonic
Ag-supported
ZnO
nanocomposite
(ZnO–Ag)
using
environmentally
friendly
bio-approach
as
alternative
hazardous
synthesis
approaches.
NPs
ZnO–Ag
were
characterized
by
UV–Vis
diffuse
reflectance
spectroscopy
(UV–DRS)
(the
exhibited
absorption
band
between
450–550
nm,
attributed
Ag
surface
plasmon
resonance
(SPR)),
Photoluminescence
(PL)
spectral
investigation,
which
revealed
PL
emission
intensity
of
was
lower
than
pure
NPs,
describing
extended
electron-hole
pair
(e--h+)
lifespan
photogenerated
charge
carriers,
Fourier
transform
infrared
(FTIR),
FT-Raman,
X-ray
diffraction
(XRD)
analyses
deduced.
In
addition,
energy
dispersive
(SEM-EDX),
transmission
electron
microscopy
(TEM),
thermogravimetric
analysis
(TGA)
performed
further
ascertained
successful
biosynthesis
thermally
stable
Nps
nanocomposite.
The
as-prepared
displayed
increased
photocatalytic
characteristics
due
decline
in
bandgap
3.02
eV
2.90
(ZnO–Ag
nanocomposite).
activity
developed
degradation
methylene
blue
(MB)
dye,
primary
industry
released
water-pollutant,
conducted
under
UV
light
irradiation.
Meanwhile,
maximum
%
MB
dye
molecules
attained
98.0
after
60
min
exposure
UV-light
Increased
nanocomposites
faster
rate
achieved
deposition
(SPR)
effect
possessed
NPs.
oxidative
route
that
resulted
production
hydroxyl
radicals
(OH•).
SPR
photocatalyst
induced
synergistic
enhancement
optical
response
separation
photo-induced
carriers.
combined
gives
comprehensive
information
directions
future
research
on
noble
metal-modified
nanocatalysts
direct
applications
water.
Catalysts,
Journal Year:
2023,
Volume and Issue:
13(7), P. 1046 - 1046
Published: June 28, 2023
Green
hydrogen
energy
has
captivated
researchers
and
is
regarded
as
a
feasible
option
for
future
energy-related
aspirations.
The
emerging
awareness
of
renewable
energy-driven
generation
carbon
dioxide
reduction
calls
the
use
unconventional
schematic
tools
in
fabrication
nanocatalyst
systems.
Transition
metal
phosphides
are
state-of-art,
cost-effective,
noble-metal-free
materials
that
have
been
comprehensively
examined
sustainable
applications.
Recent
reports
on
these
advanced
functional
cemented
their
candidature
high-performance
catalytic
systems
production
conversion
into
value-added
chemical
feedstock.
Bimetallic
NiCoP
(238.2
mmol
g−1
h−1)
exhibits
top-notch
competence
toward
photocatalytic
HER
reveals
application
pristine
class
TMPs,
whereas
heterostructured
Ni2P/CdS
was
found
to
be
fit
photochemical
CO2
reduction,
well
HER.
On
other
hand,
Ni2P
recently
ascertained
an
efficient
electrocatalytic
system
CO2RR
A
wide
array
physicochemical
modulations,
such
compositional
structural
engineering,
defect
generation,
facet
control,
used
improving
efficiency
transition
phosphide
nanostructures.
In
this
review,
we
succinctly
discuss
proficiency
green
via
electrochemical
pathways.
We
detail
significance
properties
brief
readers
about
synthetic
advancements
without
deviating
from
our
goal
summarizing
recent
achievements
