Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(45), С. 19589 - 19599
Опубликована: Ноя. 1, 2024
Traditional
Type-I
heterojunctions,
the
combination
of
large-
and
narrow-bandgap
semiconductors,
possess
a
long
electron
transmission
path
an
electron–hole
confinement
region,
making
them
not
conducive
to
improving
catalytic
performance.
Hence,
few
studies
about
heterostructure
combined
with
large
narrow
bandgap
in
chemocatalysis
were
invested,
especially
terms
reaction
mechanism.
Herein,
(CdS)
(hexagonal
boron
nitride,
h-BN)
selected
as
research
objects
fabricate
h-BN/CdS
heterojunction
by
Joule
heating
ultrafast
procedure.
Density
functional
theory
(DFT)
calculations
performed
showed
that
heterojunctions
photogenerated
electrons
(e–)
transferred
from
h-BN
CdS,
while
holes
(h+)
moved
conversely,
which
is
completely
different
classical
heterojunctions.
Thus,
nonclassical
was
successfully
constructed,
proved
DFT
experimental
verification,
revealed
excellent
visible
light
response
photocatalytic
degradation
ability
tetracycline
(TC).
The
optimized
exhibited
high
rate
84.78%
under
irradiation.
Additionally,
applicability
expanded
photodegradation
water
environments.
A
materials
proposed,
opened
up
new
for
efficient
photocatalysis
antibiotic
wastewater
degradation.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(18), С. 9378 - 9418
Опубликована: Янв. 1, 2024
Organic
transformation
by
light-driven
catalysis,
especially,
photocatalysis
and
photothermal
denoted
as
photo(thermal)
is
an
efficient,
green,
economical
route
to
produce
value-added
compounds.
In
recent
years,
owing
their
diverse
structure
types,
tunable
pore
sizes,
abundant
active
sites,
metal-organic
framework
(MOF)-based
catalysis
has
attracted
broad
interest
in
organic
transformations.
this
review,
we
provide
a
comprehensive
systematic
overview
of
MOF-based
for
First,
the
general
mechanisms,
unique
advantages,
strategies
improve
performance
MOFs
are
discussed.
Then,
outstanding
examples
transformations
over
introduced
according
reaction
type.
addition,
several
representative
advanced
characterization
techniques
used
revealing
charge
kinetics
intermediates
presented.
Finally,
prospects
challenges
field
proposed.
This
review
aims
inspire
rational
design
development
materials
with
improved
catalysis.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(11), С. 6425 - 6436
Опубликована: Май 21, 2024
An
ionic
porous
organic
polymer
(TzTzIPOP)─synthesized
from
readily
accessible
2,5-di(pyridine-4-yl)thiazolo[5,4-d]thiazole
(BpyTzTz)
and
3,3′,5,5′-tetrakis(bromomethyl)-2,2′,6,6′-tetramethylbiphenyl
(TMBB)
as
the
building
blocks
using
Menshutkin
reaction
for
polymerization─is
shown
to
serve
an
excellent
heterogeneous
photoredox
well
photosensitizing
catalyst
in
presence
of
molecular
oxygen.
Efficient
green
sustainable
oxidation
arylmethylene
compounds
(C(sp3)–H
bonds)
alcohols
carbonyl
is
demonstrated
under
blue
LED
irradiation
conditions
TzTzIPOP
Mechanistically,
oxidations
proceed
through
photoinduced
single-electron
transfer
energy
processes
involving
intermediacy
superoxide
anion
(O2•–)
singlet
oxygen
(1O2),
respectively.
The
recyclable
be
robust
enough
permit
reactions
multiple
times
(at
least
10
cycles)
without
loss
any
catalytic
activity.
that
with
oxidant
conditions,
facilitating
easy
workup,
should
much
relevance
industrial
processes.
Materials,
Год журнала:
2025,
Номер
18(3), С. 676 - 676
Опубликована: Фев. 3, 2025
The
HKUST-1
metal-organic
framework
was
synthesized
using
four
different
copper(II)
salt
precursors,
namely
copper
nitrate,
sulphate,
acetate,
and
chloride,
via
the
solvothermal
method
with
no
mixing.
Syntheses
were
conducted
without
N,N-dimethylformamide
to
allow
for
a
greener
synthesis
of
MOFs.
selected
physicochemical
properties
obtained
frameworks
determined.
yield
products
changed
in
order
acetate>nitrate>sulfate,
while
product
chloride.
materials
characterized
by
means
XRD,
nitrogen
adsorption–desorption
at
−196
°C,
FTIR,
XPS,
TGA,
SEM,
DLS.
morphology
crystallites
their
significantly
affected
when
precursors
used.
comparison
results
already
published
works
allows
correlation
parameters
like
temperature,
time,
mixing,
precursor
used
on
final
product.
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(7)
Опубликована: Июнь 1, 2025
ABSTRACT
Metal–organic
frameworks
(MOFs)
are
well‐known
for
their
promising
applications
in
photocatalysis,
but
single‐component
MOFs
have
limited
effectiveness
degrading
organic
pollutants.
To
address
this,
we
designed
a
novel
photocatalyst
the
efficient
degradation
of
p‐nitrophenol
(p‐NP).
In
this
study,
synthesized
two‐dimensional
[Co
(tib)(mpda)(H
2
O)
]·H
O
(Co‐MOF)
(tib
=
1,3,5‐tris(1‐imidazolyl)benzene,
H
mpda
1,3‐phenylenediacetic
acid)
using
hydrothermal
method.
Silver
particles
were
then
deposited
on
surface
Co‐MOF
via
photo‐reduction
method,
forming
Ag@Co‐MOF.
The
incorporation
Ag
accelerated
photogenerated
carrier
transport
and
prevented
recombination
electrons
(e
−
)
holes
(h
+
),
resulting
superior
photocatalytic
performance.
bandgap
energy
is
3.4
eV,
whereas
that
Ag@Co‐MOF
reduced
to
2.8
significantly
enhancing
visible
light
absorption.
After
240
min
illumination,
achieved
efficiency
92.7%
p‐NP,
with
rate
0.0095
−1
.
Analysis
active
substances
intermediates
through
free
radical
trapping
tests,
ESR
XPS
valence
band
LC–MS
revealed
promoted
generation
·OH
·O
,
facilitating
rapid
oxidative
p‐NP.
summary,
provides
sustainable
green
pathway
pollutant
removal
environmental
remediation,
while
also
expanding
application
areas
MOF
materials.
