Catalysts,
Год журнала:
2024,
Номер
14(10), С. 686 - 686
Опубликована: Окт. 2, 2024
The
cheap
non-noble
Cu–SiO2-based
nanocatalysts
are
under
intensive
study
in
different
reactions
resulting
useful
chemicals,
yet
their
application
environment
protection
is
poorly
studied.
In
the
present
work,
influence
of
Cu
loading
(3–15
wt%)
on
catalytic
behavior
Cu/SiO2
materials
was
first
precisely
studied
hydrogenation
hazardous
trinitrobenzene
to
valuable
aromatic
amines
with
molecular
hydrogen.
catalysts
have
been
synthesized
by
method
deposition–precipitation
using
urea.
catalyst
characterization
XRD,
TPR-H2,
SEM,
TEM,
and
N2
adsorption
methods
confirmed
that
they
include
nanoparticles
micro-mesoporous
chrysocolla-like
phase
supported
mesopores
a
commercial
SiO2
carrier,
as
well
revealed
formation
highly
dispersed
CuO
sample
highest
loading.
Variation
reaction
conditions
showed
optimal
ones
(170
°C,
1.3
MPa
H2)
complete
conversion
triaminobenzene
yield
65%
for
15%
loading,
best
82%
obtained
over
10%
calcined
at
600
°C.
results
show
potential
phyllosilicate-based
utilization
trinitroaromatic
compounds
via
possible
applications
remediation
treatment
system.
RSC Advances,
Год журнала:
2022,
Номер
12(26), С. 16454 - 16478
Опубликована: Янв. 1, 2022
In
the
present
study,
a
new
l-glutamic
acid
cross-linked
chitosan
supported
on
magnetic
carboxylic
acid-functionalized
multi-walled
carbon
nanotube
(Fe
Nanoscale Advances,
Год журнала:
2023,
Номер
5(17), С. 4499 - 4520
Опубликована: Янв. 1, 2023
In
this
study,
a
new
magnetic
nanocomposite
consisting
of
Ni2B
nanoparticles
anchored
on
functionalized
multi-walled
carbon
nanotubes
(Fe3O4/f-MWCNT/Ni2B)
was
synthesized
and
characterized
using
various
techniques
such
as
FT-IR,
XRD,
FESEM,
SEM-based
EDX,
elemental
mapping,
HRTEM,
DLS,
SAED,
XPS,
BET,
TGA,
VSM.
The
as-prepared
successfully
employed
for
the
preparation
bioactive
1,4-benzodiazepines
from
three-component
reaction
o-phenylenediamine
(1),
dimedone
(2),
different
aldehydes
(3),
in
polyethylene
glycol
400
(PEG-400)
solvent
at
60
°C.
obtained
results
demonstrated
that
current
one-pot
protocol
offers
many
advantages,
good-to-excellent
yields
within
acceptable
times,
favorable
TONs
TOFs,
eco-friendliness
procedure,
easy
nanocomposite,
mild
conditions,
broad
range
products,
excellent
catalytic
activity,
green
solvent,
reusability
nanocomposite.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Авг. 18, 2024
An
environmentally
friendly,
versatile
multicomponent
reaction
for
synthesizing
isoxazol-5-one
and
pyrazol-3-one
derivatives
has
been
developed,
utilizing
a
freshly
prepared
g-C
Nanoscale Advances,
Год журнала:
2024,
Номер
6(15), С. 3961 - 3977
Опубликована: Янв. 1, 2024
In
this
research,
new
catalytic
applications
of
the
Fe
3
O
4
/
f
-MWCNT-CS-Glu/Ni
II
nanocomposite
have
been
introduced
for
efficient
reduction
and
one-pot
two-step
reductive
Schotten–Baumann-type
acetylation
nitroarenes
in
water.