Dalton Transactions,
Год журнала:
2024,
Номер
53(45), С. 18217 - 18225
Опубликована: Янв. 1, 2024
The
structure-sensitive
activity
of
Pd
catalysts
in
carbonylation
reactions
is
an
urgent
problem
to
be
explored.
Herein,
nanocrystals
with
uniform
particle
sizes
(2.3
nm,
3.4
5.0
nm
and
6.7
nm)
were
produced
by
using
PVP
regulate
the
growth
nanoparticles.
catalytic
reaction
showed
a
"volcanic
curve"
increase
size,
obtained
Pd/CsHPMo
catalyst
5
nanoparticles
was
preferred.
5.0Pd/CsHPMo
catalyst,
strongest
"SMSI
effect",
shows
Pd-CsHPMo
interaction,
generated
electron-deficient
active
sites
accelerated
cycle
Materials,
Год журнала:
2023,
Номер
16(7), С. 2819 - 2819
Опубликована: Апрель 1, 2023
Zinc
oxide
nanoparticles
(ZnO-NPs)
possess
unique
properties,
making
them
a
popular
material
across
various
industries.
However,
traditional
methods
of
synthesizing
ZnO-NPs
are
associated
with
environmental
and
health
risks
due
to
the
use
harmful
chemicals.
As
result,
development
eco-friendly
manufacturing
practices,
such
as
green-synthesis
methodologies,
has
gained
momentum.
Green
synthesis
using
biological
substrates
offers
several
advantages
over
conventional
approaches,
cost-effectiveness,
simplicity
scaling
up,
reduced
impact.
While
both
dried
dead
living
biomasses
can
be
used
for
synthesis,
extracellular
mode
is
more
commonly
employed.
Although
have
been
successfully
utilized
green
production
ZnO-NPs,
large-scale
remains
challenging
complexity
extracts.
In
addition,
significant
potential
photocatalysis
adsorption
in
remediation
industrial
effluents.
The
ease
use,
efficacy,
quick
oxidation,
byproducts
make
promising
tool
this
field.
This
review
aims
describe
different
substrate
sources
technologies
their
impact
on
properties.
Traditional
chemicals
limit
clinical
field
use.
emergence
algae
creating
safe,
biocompatible,
non-toxic,
economic,
ecological
techniques
gaining
Future
research
required
explore
other
species
biogenic
synthesis.
Moreover,
focuses
how
viable
alternative
methods.
these
industrial-effluent
future
research.
This
study
introduces
a
novel
method
for
functionalizing
natural
asphalt,
presenting
new
opportunities
upgrading
asphaltenes
from
road
to
catalyst.
The
process
utilizes
metal-free
sonobromination
technique
in
acetic
acid
incorporate
carbon-halogen
substituents
onto
asphalt.
These
sites
are
then
targeted
by
nucleophilic
substitution
with
diethanolamine,
followed
complexation
Pd(0)
create
unique
palladium
complex
grafted
stabilized
serves
as
heterogeneous
and
recoverable
catalyst
the
Suzuki
reaction.
facilitates
reaction
between
aryl
boronic
acids
various
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 6, 2025
For
several
decades,
the
methodology
of
complete
destruction
organic
pollutants
via
oxidation,
i.e.,
mineralization,
has
been
rooted
in
real
water
treatment
applications.
Nevertheless,
this
industrially
accepted
protocol
is
far
from
sustainable
because
excessive
input
chemicals
and/or
energy
as
well
unregulated
carbon
emission.
Recently,
there
have
emerging
studies
on
removal
a
completely
different
pathway,
polymerization,
meaning
that
target
undergo
oxidative
polymerization
reactions
to
generate
polymeric
products.
These
collectively
shown
compared
conventional
mineralization
pathway
allows
more
efficient
pollutants,
largely
reduced
chemicals,
and
suppressed
In
review,
we
aim
provide
comprehensive
examination
fundamentals
process,
current
state-of-the-art
strategies
for
regulation
both
kinetic
thermodynamic
perspectives,
resource
recovery
formed
end,
limitations
process
pollutant
are
discussed,
with
perspectives
future
studies.
Hopefully,
review
could
not
only
critical
insight
advancement
polymerization-oriented
technologies
greener
manner
but
also
stimulate
paradigm
innovations
low-carbon
treatment.
Results in Chemistry,
Год журнала:
2023,
Номер
5, С. 100764 - 100764
Опубликована: Янв. 1, 2023
Current
study
describes
the
synthesis
of
novel
PANI/ZnO/MnO2
ternary
nanocomposite
material
and
its
application
for
catalytic
reduction
4-nitrophenol
(4-NP)
in
presence
NaBH4,
adsorptive
elimination
crystal
violet
(CV)
dye
from
aqueous
phase.
Due
to
higher
specific
surface
area
(64
m2
g−1),
pore
volume
(0.3085
cm3
g−1)
mesoporous
nature
prepared
(TNC),
it
exhibited
amazing
adsorption
ability.
99.73
%
total
pores
is
contributed
by
mesopores
constructed
highly
porous
granular
TNC.
98.13
yellow-colored
4-NP
was
catalytically
reduced
colorless
4-aminophenol
(4-AP)
10
min
reaction
time
over
TNC
catalyst
followed
pseudo-second-order
kinetics
with
0.219
min−1
kinetic
rate
constant.
On
other
hand,
96.13
CV
eliminated
60
min.
The
process
as
validated
qe
R2
values,
found
be
concurrently
channeled
intraparticle
film
diffusion
processes,
however,
not
directed
on
heterogeneous
sites.
equilibrium
experimental
data
showed
better
fittingness
Langmuir
isotherm
which
monolayer
homogeneous
surface.
thermodynamic
confirmed
feasibility
spontaneity
process,
endothermic
increased
disorderliness
at
interface
nanocomposite.
Thus,
a
prominent
candidate
applications,
can
utilized
an
efficient
water
remediation
purposes.
RSC Advances,
Год журнала:
2024,
Номер
14(30), С. 21464 - 21537
Опубликована: Янв. 1, 2024
Terpyridine-based
metal
complexes
have
emerged
as
versatile
and
indispensable
building
blocks
in
the
realm
of
modern
chemistry,
offering
a
plethora
applications
spanning
from
materials
science
to
catalysis
beyond.
Current Journal of Applied Science and Technology,
Год журнала:
2024,
Номер
43(6), С. 1 - 10
Опубликована: Май 3, 2024
The
field
of
nanotechnology
has
witnessed
a
paradigm
shift
in
recent
years,
with
an
increasing
emphasis
on
eco-friendly
and
sustainable
synthesis
methods
for
metallic
nanoparticles.
Algal-mediated
synthesis,
emerging
promising
technique,
harnesses
the
bioactive
compounds
present
algae
green
This
process
not
only
offers
alternative
to
conventional
chemical
but
also
holds
potential
revolutionize
various
industries,
including
medicine,
energy,
environmental
remediation.
Microalgae,
forming
substantial
part
planet’s
biodiversity,
are
usually
single-celled
colony-forming
or
filamentous
photosynthetic
microorganisms,
several
legal
divisions
like
Chlorophyta,
Charophyta,
Bacillariophyta.
Whole
cells
Plectonema
boryanum
(filamentous
cyanobacteria)
proved
efficient
promoting
production
Au,
Ag,
Pt
cyanobacterial
strains
Anabaena
flos-aquae
Calothrix
pulvinate
were
used
implement
biosynthesis
abstract
provides
overview
key
aspects
algal-mediated
nanoparticle
synthesis.
Algae,
as
versatile
source
compounds,
serve
both
reducing
stabilizing
agents
formation
process.
Various
types
algae,
microalgae
macroalgae,
have
been
explored
this
purpose,
each
distinct
biochemical
profiles
that
contribute
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(3)
Опубликована: Янв. 8, 2024
This
paper
reports
a
concise
strategy
for
the
controlled
preparation
of
Pd@g‐C
3
N
4
/TiO
2
photocatalysts
rich
in
oxygen
vacancies.
The
scheme
forms
black
TiO
with
vacancies
on
carbon
nitride
material
by
in‐situ
growth
and
heat
treatment,
then
utilizes
solvothermal
reduction
to
load
metallic
palladium
into
material.
composites
were
structurally
analyzed
using
Fourier
transform
infrared
(FT‐IR),
X‐ray
photoelectron
spectroscopy
(XPS),
diffraction
analysis
(XRD),
transmission
electron
microscopy
(TEM),
paramagnetic
resonance
(EPR),
scanning
(SEM),
elemental
mapping,
diffuse
reflectance
(DRS),
inductively
coupled
plasma
(ICP)
analysis.
results
show
that
materials
prepared
method
reported
this
can
effectively
improve
separation
efficiency
photogenerated
electron–hole
pairs
prolong
lifetime
charge
carriers
inhibiting
recombination.
In
addition,
heterojunction
structure
formed
between
g‐C
also
enhances
photocatalytic
performance
some
extent.
After
simple
optimization
conditions,
photocatalyst
could
promote
Suzuki–Miyaura
CC
coupling
reactions
under
mild
conditions
(room
temperature,
30
W
LED
lamp,
λ
=
455
nm),
good
biaryl
yields
obtained
(optimum
yield
99%).
It
is
very
noteworthy
electrons
holes
generated
photoexcited
catalyst
confirmed
be
main
active
species
process
radical
trapping
assay
EPR
test.
has
excellent
activity
stability
use,
which
provides
new
reference
wider
green
synthesis
catalysis.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(4), С. 5158 - 5167
Опубликована: Янв. 19, 2024
Flow
chemistry
provides
a
neo-orientation
for
the
research
and
development
of
chemical
technology,
in
which
heterogeneous
continuous
catalysis
based
on
packed
beds
can
realize
rapid
separation
recycling.
However,
options
catalysts
are
still
limited.
In
this
work,
we
gradually
grow
covalent
organic
frameworks
(COFs,
TpBpy)
surface
silica
gel
(SiO2)-supported
substrate
to
obtain
stable
copper(I)-chelated
high-loading
catalyst
(SiO2@CuI-TpBpy).
SiO2@CuI-TpBpy
shows
high
catalytic
activity
three-component
Huisgen
1,3-dipolar
cycloaddition,
giving
corresponding
triazoles
with
excellent
yields
reposeful
recyclability
under
batch
conditions.
The
structures
remain
steady,
copper
contents
basically
unchanged
after
five
cycles.
Then,
successfully
applied
one-pot
flow
prepare
rufinamide
89%
yield
24
h
stably
efficiently
mere
traces
ions
remaining.
More
importantly,
system
reveals
minuscule
effect
particle
size
internal
diffusion.
This
COF
encapsulation
strategy
presents
new
possibility
design
industrial
metal
loading
low
diffusion
resistance.
