International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(15), P. 8422 - 8422
Published: July 29, 2022
Photocatalytic
degradation
of
harmful
organic
matter
is
a
feasible
and
environmentally
friendly
method.
Bi2WO6
has
become
hotspot
photocatalysts
because
its
unique
layered
structure
visible
light
response.
In
the
present
study,
Sn
doping
was
adopted
to
modified
by
hydrothermal
The
Sn-doped
were
characterized
XRD,
SEM,
TEM,
BET,
XPS,
PL,
DRS,
respectively.
results
show
that
shows
three-dimensional
(3D)
flower-like
morphology,
which
composed
two-dimensional
(2D)
nanosheets.
Sn4+
ions
enter
into
lattice,
producing
degree
lattice
distortion,
in
favor
reducing
recombination
photogenerated
electrons
holes.
Moreover,
specific
surface
area
significantly
increased
after
doping,
beneficial
providing
more
active
sites.
photocatalytic
2%Sn-Bi2WO6
exhibits
highest
activity.
After
60
min
irradiation,
methylene
blue
(MB)
increases
from
80.6%
for
pure
92.0%
2%Sn-Bi2WO6.
first-order
reaction
rate
constant
0.030
min-1,
1.7
times
than
Bi2WO6.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(28)
Published: May 5, 2022
Ammonia
and
nitrates
are
the
most
fundamental
significant
raw
ingredients
in
human
society.
Till
now,
industrial
synthetic
ammonia
by
Haber-Bosch
process
Ostwald
have
encountered
increasingly
serious
challenges,
i.e.,
high
energy
consumption,
cost,
environment-harmful
gas
emissions.
Therefore,
developing
alternative
approaches
to
achieve
nitrogen
fixation
overcome
inherent
deficiencies
of
well-established
processes
has
fascinated
scientists
for
many
years,
especially
simultaneous
formation
nitrate
directly
from
N2
molecules,
which
been
rarely
studied.
Herein,
a
heterojunction-based
photocatalytic
system
is
designed
successfully
"overall
fixation,"
sustainable
conversion
molecules
into
products
under
mild
conditions.
In
this
heterojunction,
interfacial
charge
redistribution
(ICR)
promotes
selective
accumulations
photogenerated
electrons
holes
CdS
WO3
components.
As
result,
can
be
activated
reduced
with
yields
35.8
µmol
h-1
g-1
multi-electron
process,
synchronously
oxidized
14.2
hole-induced
oxidation
coupling
process.
This
work
provides
novel
insight
promising
approach
realize
artificial
condition.
Materials Advances,
Journal Year:
2024,
Volume and Issue:
5(7), P. 2668 - 2688
Published: Jan. 1, 2024
This
review
highlights
several
advantages
and
improvement
strategies
for
carbon
nitride
as
a
visible
light-active
photocatalyst
graphene
derivatives
supporting
material
the
photocatalytic
degradation
of
emerging
water
pollutants.
Chemical Engineering Journal,
Journal Year:
2022,
Volume and Issue:
455, P. 140784 - 140784
Published: Dec. 5, 2022
The
efficient
removal
of
organic
micropollutants,
pharmaceuticals,
pesticides,
drugs,
and
others,
remains
an
unsolved
challenge
in
water
treatment.
Although
photocatalysis
has
proven
highly
effective
at
degrading
these
substances,
its
large-scale
implementation
been
so
far
hampered
by
technical
economic
concerns.
This
work
describes
the
development
characterization
novel
efficient,
self-supporting
photocatalytic
ZnO
foams
for
degradation
micropollutants.
A
systematic
investigation
flow
rate,
catalyst
length
stability
under
both
recirculating
single-pass
conditions
was
conducted
using
carbamazepine
as
a
UV-recalcitrant
model
pollutant.
Under
recirculation,
95
%
achieved
with
photocatalyst
quantum
yield
1.2
×
10−3
electrical
energy
per
order
(EEO)
low
24
kWh
m−3,
values
outperforming
current
technology,
slurry
immobilised
systems.
For
tests,
complete
30
min,
increasing
to
6.3
10−3,
EEO
36
m−3.
These
also
outperform
those
slurries,
other
foam
reported
literature
similar
conditions.
consumption
newly
developed
foams,
combined
their
high
stability,
provides
realistic
path
towards
practical
processes
treatment,
addressing
limitations
existing
technology.
Journal of Chemistry,
Journal Year:
2022,
Volume and Issue:
2022, P. 1 - 24
Published: Jan. 25, 2022
The
rapid
growth
of
anthropogenic
activities
in
recent
decades
has
resulted
the
appearance
numerous
new
chemical
compounds
environment,
known
as
“emerging
pollutants”
(EPs)
or
“contaminants
emerging
concern”
(CECs).
Although
partially
not
yet
regulated
monitored,
there
is
growing
research
interest
these
EPs
among
scientific
community
because
their
bioaccumulation,
persistence,
and
adverse
effects.
Among
these,
endocrine
disruptors,
pesticides,
pharmaceuticals
can
have
harmful
impacts
on
human
health
ecosystem.
Conventional
wastewater
treatment
technologies
are
effective
removing
contaminants,
allowing
them
to
be
released
into
receiving
environment.
In
order
improve
understanding
pollutants,
this
review
discusses
source,
occurrence,
bisphenol
A,
atrazine,
amoxicillin,
paracetamol
model
molecules
environmental
an
issue
that
remains
underrepresented
Morocco.
Then,
methods
for
reviewed,
including
adsorption,
advanced
oxidation
processes,
biodegradation,
hybrid
treatment.
It
proposed
adsorption
photocatalysis
used
simple,
effective,
environmentally
friendly
removal.
Thus,
we
summarize
some
adsorbent
photocatalyst
materials
applied
work
control
pollutants.
Towards
end
paper,
development
inexpensive
locally
available
(Morocco)
remove
from
considered.
