As
primary
air
pollutants
from
fossil
fuel
combustion,
the
excess
emission
of
nitric
oxides
(NOx)
results
in
a
series
atmospheric
environmental
issues.
Although
selective
catalytic
reduction
technology
has
been
confirmed
to
be
effective
for
NOx
removal,
green
purification
and
value-added
conversion
under
ambient
conditions
are
still
facing
great
challenges,
especially
nitrogen
resource
recovery.
To
address
that,
photo-/electrocatalysis
offers
sustainable
routes
efficient
upcycling
temperature
pressure,
which
received
considerable
attention
scientific
communities.
In
this
review,
recent
advances
critically
summarized.
The
target
products
reaction
mechanisms
systems,
together
with
responsible
active
sites,
discussed,
respectively.
Then,
realistic
practicability
is
proposed,
including
strict
performance
evaluation
criteria
application
by
photo-/electrocatalysis.
Finally,
current
challenges
future
opportunities
proposed
terms
catalyst
design,
enhancement,
mechanism
understanding,
practical
conditions,
product
separation
techniques.
Environmental Science Processes & Impacts,
Journal Year:
2024,
Volume and Issue:
26(6), P. 1090 - 1106
Published: Jan. 1, 2024
Devices
using
222
nm
germicidal
ultraviolet
light
(GUV222)
have
been
marketed
to
reduce
virus
transmission
indoors.
However,
GUV222
generates
ozone
which
can
react
with
gases
and
surfaces
create
undesirable
air
byproducts.
Environmental Science Processes & Impacts,
Journal Year:
2024,
Volume and Issue:
26(6), P. 975 - 990
Published: Jan. 1, 2024
Common
household
activities
including
cooking
and
cleaning
contribute
to
indoor
air
pollution.
Here,
a
modelling
study
has
been
conducted
identify
how
these
sources
of
pollution
affect
outdoor
environments.
ACS ES&T Air,
Journal Year:
2024,
Volume and Issue:
1(9), P. 1015 - 1027
Published: July 18, 2024
The
chemical
composition
of
indoor
air
is
strongly
driven
by
the
and
properties
surfaces.
At
Chemical
Assessments
Surfaces
Air
(CASA)
campaign,
we
performed
controlled
additions
ammonia
(reaching
up
to
297
ppb
662
ppb)
investigate
impacts
changing
surface
basicity
on
fate
gaseous
particulate
acids
bases
in
an
unoccupied
house.
In
response
injections,
nitrogen-containing
compounds
(C2–7H3–11N1O0–3)
were
emitted
from
surfaces
gas
phase
with
signals
increasing
101%
104%
compared
their
prior
addition.
same
time,
oxygen-containing
(C1–7H2–6O2–3)
removed
partitioning.
Indoor
pH
aerosol
likely
increased
during
these
injections
relative
baseline
conditions.
We
estimate
be
nearly
5
range
2
4
this
experiment.
each
injection,
observed
ammonium
nitrate
concentrations
increase
due
gas-particle
partitioning
nitric
acid.
This
gas-particle-surface
exchange
showed
strong
dependence
humidity;
evaporation
was
more
pronounced
at
lower
humidity
when
surface-associated
water
volume
reduced,
while
gas-to-particle
inorganic
species
greater
presence
liquid
higher
humidity.
From
cooking
experiments,
which
represent
realistic
sources
environment
but
emit
10
times
less
than
introduced
house
via
pure
injection
predict
that
may
still
important
basic
gases
air.
