Asian Journal of Research in Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 271 - 277
Published: Oct. 31, 2024
Air
pollution
has
been
recognized
as
one
of
our
major
environmental
health
problems,
but
much
about
it
still
requires
investigation.
Current
research
trends
can
be
categorized
into
two
broad
areas:
medical-biological
and
physical-engineering.
As
more
is
learned,
the
nature
these
problems
becomes
clearer,
making
possible
to
approach
further
investigation
control
air
rationally.
become
a
global
concern,
with
high
concentrations
pollutants
putting
millions
people's
at
risk.
India
countries
severely
affected
by
pollution,
22
out
30
most
polluted
cities
in
world
located
there.
Its
adverse
impact
pervasive,
affecting
human
health,
environment,
economy,
social
well-being.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(20), P. 15721 - 15742
Published: Oct. 9, 2024
Ammonia
(NH3)
is
one
of
the
most
important
chemicals
in
high
demand
human
society.
Given
high-energy
consumption
and
environmental
impact
associated
with
Haber–Bosch
process,
an
environmentally
friendly
method
for
NH3
synthesis
under
ambient
conditions
should
be
developed.
The
reduction
N1
compounds,
including
nitrate
(NO3–),
nitrite
(NO2–),
nitric
oxide
(NOx),
are
more
energetically
favorable
than
that
nitrogen
(N2),
avoiding
activation
inert
N≡N
bonds.
Photocatalytic
from
compounds'
reduction,
which
utilizes
sunlight
to
convert
contaminants
into
value-added
chemicals,
offers
intriguing
approach
synthesis.
This
review
a
comprehensive
overview
progress
research
photocatalysis
technology
compounds
Insight
efficiency
promotion
mechanism
provided,
particularly
focusing
on
optimization
photocatalyst,
mass
transfer
reactants,
redox
synergistic
promotion.
Moreover,
reaction
pathways
summarized.
evaluation
criteria,
accurate
quantification
yield,
performance
indicators,
separation
recovery,
discussed
guide
systematic
reliable
Finally,
current
achievements
future
challenges
photocatalytic
critically
discussed.
This
study
investigates
the
relationship
between
surface
properties
and
microstructural
characteristics
of
photocatalytic
composites
their
impact
on
air
purification
efficiency.
High-resolution
energy-dispersive
X-ray
spectroscopy
(EDS)
mapping
mercury
intrusion
porosimetry
(MIP)
were
employed
to
analyze
photocatalyst
distribution
pore
structure
quantitatively.
The
findings
demonstrated
a
strong
correlation
TiO2
coverage
photoactive
NO
removal
rates
NO2
generation
rates.
Two
predictive
models
developed
link
NOx
with
cementitious
mortars’
structural
properties.
A
stepwise
regression
approach
produced
second-degree
polynomial
model
an
adjusted
R2
0.98
Mean
Absolute
Percentage
Error
(MAPE)
8.34%,
indicating
high
accuracy.
results
underscore
critical
role
uniform
optimized
in
enhancing
efficiency
while
promoting
desirable
products
(NO3−)
minimizing
formation
undesirable
byproducts
(NO2).
