Frontiers in Chemistry,
Journal Year:
2022,
Volume and Issue:
10
Published: Aug. 22, 2022
Photocatalytic
nitrogen
reduction
reaction
(NRR)
to
ammonia
holds
a
great
promise
for
substituting
the
traditional
energy-intensive
Haber-Bosch
process,
which
entails
sunlight
as
an
inexhaustible
resource
and
water
hydrogen
source
under
mild
conditions.
Remarkable
progress
has
been
achieved
regarding
activation
solar
conversion
of
N2
NH3
with
rapid
development
emerging
photocatalysts,
but
it
still
suffers
from
low
efficiency.
A
comprehensive
review
on
photocatalysts
covering
tungsten
related
metals
well
their
broad
ranges
alloys
compounds
is
lacking.
This
article
aims
summarize
recent
advances
in
this
regard,
focusing
strategies
enhance
photocatalytic
performance
metal
semiconductors
NRR.
The
fundamentals
solar-to-NH3
photocatalysis,
pathways,
quantification
methods
are
presented,
concomitant
challenges
also
revealed.
Finally,
we
cast
insights
into
future
sustainable
production,
highlight
some
potential
directions
further
research
vibrant
field.
eScience,
Journal Year:
2024,
Volume and Issue:
4(3), P. 100228 - 100228
Published: Jan. 6, 2024
Powered
by
optical
energy,
photocatalytic
reduction
for
fuel
production
promises
to
be
an
ideal
long-term
solution
a
number
of
key
energy
challenges.
Photocatalysts
with
enhanced
light
absorption,
fast
electron/hole
separation
rates,
and
exposed
activity
sites
are
essential
improve
efficiency.
Semiconductors
constrained
their
own
intrinsic
properties
have
limited
performance
in
photocatalysis,
but
defect
engineering
provides
opportunity
modulate
the
physical
chemical
semiconductors.
Defect
has
been
shown
effective
regulating
electron
distribution
accelerating
kinetics
during
photocatalysis.
This
review
introduces
definition
categorization
defects,
then
explains
main
effects
on
photoabsorption,
carrier
separation/migration,
surface
reactions.
We
milestones
design
defect-engineered
photocatalysts
reactions,
including
hydrogen
evolution,
CO2
reduction,
N2
tabulate
respective
catalytic
performance.
Finally,
we
provide
insights
perspectives
challenges
potential
photoreduction
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(33)
Published: March 21, 2024
Abstract
Solar‐to‐chemical
energy
conversion
thorugh
photocatalytic
technology
has
garnered
significant
attention
due
to
its
potential
for
clean
hydrogen
pro
duction,
pollutant
degradation,
and
carbon
dioxide
reduction.
However,
relatively
low
solar‐to‐chemical
efficiency
hinders
industrial
development.
External
fields
have
currently
emerged
as
a
supplementary
source
augment
the
overall
catalytic
efficiency.
Recently,
performance
been
considerably
enhanced
through
magnetic
field
modulation,
which
promotes
separation
transfer
of
photoexcited
charge
carriers.
This
article
systematically
reviews
recent
research
progress
field–assisted
photocatalysis,
discussing
phenomena
such
negative
magnetoresistance
effect,
Lorentz
force,
spin
polarization.
It
comprehensively
analyzes
effect
on
critical
processes
in
photocatalysis:
light
absorption,
charge‐carrier
separation,
surface
reactions.
In
particular,
this
review
focuses
spin‐relaxation
mechanism,
explains
how
electron
lifetime
is
extended
polarization,
proposes
design
strategies
spin‐polarized
materials.
Finally,
discusses
challenges
opportunities
enhancing
The
ultimate
objective
offer
notable
theoretical
experimental
insights
that
can
guide
development
high‐performance
photocatalysts
systems.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(31), P. 37540 - 37553
Published: July 24, 2023
Photocatalytic
N2
fixation
is
a
complex
reaction,
thereby
prompting
researchers
to
design
and
analyze
highly
efficient
materials.
Herein,
one-pot
hydrothermal
Bi2WO6-BiOCl
(BW-BiOCl)
heterojunctions
were
synthesized
by
varying
the
molar
ratio
of
tungsten:
chlorine
precursor.
Major
morphological
transformations
in
BiOCl
observed
wherein
it
turned
from
thick
sheets
∼230
nm
pure
∼30
BW-BiOCl.
This
was
accompanied
extensive
growth
{001}
facets
verified
X-ray
diffraction
(XRD)
field-emission
scanning
electron
microscopy
(FESEM)
analyses.
A
p-n
heterojunction
formed
between
Bi2WO6
evidenced
via
photoluminescence
(PL),
time-resolved
(TRPL),
photocurrent
response,
electrochemical
impedance
spectroscopy
(EIS)
The
formation
led
reduction
work
function
BW-BiOCl
0.25
hybrid
confirmed
ultraviolet
photoelectron
(UPS)
analysis.
could
produce
ammonia
up
345.1
μmol·L-1·h-1
owing
robust
with
an
S-scheme
carrier
transport
mechanism.
Recycle
tests
resulted
no
loss
activities
post-catalytic
analysis,
showcasing
high
stability
heterojunction.
Novel
performance
owed
its
excellent
chemisorption
gas
on
surface
N2-temperature
programmed
desorption
(TPD).
also
displayed
superior
rate
constant
3.03
×
10-2
min-1
for
90
min
CIP
degradation
time,
higher
than
pristine
Bi2WO6.
Post-photocatalytic
Fourier
transform
infrared
(FTIR)
revealed
presence
C-H
stretching
peaks
range
2850-2960
cm-1
due
adsorbed
methanol
species
fixation,
respectively.
enhanced
adsorption
reacting
onto
surface.
Langmuir,
Journal Year:
2023,
Volume and Issue:
39(37), P. 13267 - 13278
Published: Sept. 6, 2023
In
this
study,
NaNbO3
microcubes
were
introduced
during
the
preparation
of
Bi2O2CO3
nanosheets
to
construct
a
series
NaNbO3/Bi2O2CO3
heterojunctions
with
varying
content.
Their
photoactivities
for
N2
fixation
examined
and
compared.
Results
demonstrated
that
7.5%
had
highest
photoactivity.
The
NH3
production
rate
under
simulated
solar
light
is
453.1
μmol
L–1
g–1
h–1,
representing
2.0
3.8-fold
increases
compared
those
NaNbO3,
respectively.
A
comprehensive
investigation
encompassing
physical
chemical
properties
photocatalyst
was
conducted.
discovered
be
distributed
on
surface.
addition
exhibited
nearly
no
effect
photoabsorption
performance
specific
surface
area
Bi2O2CO3.
However,
tight
contact
between
their
appropriate
band
positions
led
formation
heterojunction
structure
them.
electron
drift
occurring
in
interface
region
induces
creation
an
internal
electric
field
energy
bending.
This
facilitates
transfer
photogenerated
electrons
holes
through
S-scheme
mechanism,
achieving
efficient
separation
without
compromising
redox
performance.
As
result,
composite
exhibits
exceptional
photocatalytic
nitrogen
reaction.
study
expands
application
photocatalysts
reduction
provides
insights
into
photocatalysts.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
The
global
goal
for
decarbonization
of
the
energy
sector
and
chemical
industry
could
become
a
reality
by
massive
increase
in
renewable-based
technologies.
For
this
clean
transition,
versatile
green
ammonia
may
play
key
role
future
as
fossil-free
fertilizer,
long-term
storage
medium,
feedstock,
burning
fuel
transportation
decentralized
power
generation.
high
energy-intensive
industrial
production
has
triggered
researchers
to
look
step
change
new
synthetic
approaches
powered
renewable
energies.
This
review
provides
comprehensive
comparison
light-mediated
N
Inorganic Chemistry Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
summary
describes
and
elucidates
an
enhanced
strategy
for
photocatalytic
nitrogen
fixation
over
Bi
2
MO
6
(M
=
Mo,
W)-based
catalysts
points
out
the
development
prospects
of
fixation.
