Carboxylic acids dendrimer functionalized magnetic nanoparticles for carbohydrates conversion to 5-hydroxymethylfurfural
Yousef Delshad,
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Danial Rafipour,
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Pouya Ghamari Kargar
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et al.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 31, 2025
In
present
study,
covalently
bonded
second
generation
of
amine-terminated
polyamidoamine
dendrimer
to
silica
coated
magnetic
nanoparticles
(G2-PAMAM@SMNPs)
was
synthesized
through
step-by-step
growth
chemical
grafting
approach.
Then,
terminal
amine
groups
G2-PAMAM@SMNPs
were
carboxylated
with
bromoacetic
acid
obtain
a
solid
catalyst.
Subsequent
the
prepared
weakly
acidic
catalyst
characterization,
its
catalytic
efficiency
evaluated
for
conversion
fructose
5-hydroxymethylfurfural
(5-HMF).
Reaction
conditions
gaining
an
optimum
yield
5-HMF
from
assumed
and
outstanding
87%
afforded
in
dimethyl
sulfoxide
(DMSO)/H2O
(v/v:
2/1)
media
at
140
ºC
within
3
h.
Interestingly,
presence
basicity
character
structure
catalyzed
isomerization
glucose
fructose,
thus
makes
applicable
direct
as
well
glucose-based
carbohydrates
good
excellent
yields
under
same
reaction
dehydration.
Moreover,
easily
recovered
via
separation
reused
six
cycles
without
noteworthy
decrease
efficiency.
Language: Английский
High Catalytic Performance of Bimetallic Sites Catalyst MOF@MT‐COF‐Cu for Benzimidazole and Benzothiazole Derivatives
Yiding Geng,
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Huailin Tang,
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Yixiu Zhang
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et al.
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(3)
Published: Feb. 5, 2025
ABSTRACT
An
efficient
catalytic
system
was
developed
to
rapidly
synthesize
benzimidazole
and
benzothiazole
derivatives
under
green
mild
conditions
using
MOF@MT‐COF‐Cu,
which
contains
Zr‐Cu
bimetallic
sites
as
heterogeneous
catalysts.
The
catalysts
were
characterized
by
powder
X‐ray
diffractometer
(PXRD),
field
emission
scanning
electron
microscope
(FE‐SEM),
energy‐dispersive
analysis
(EDS),
transmission
(TEM),
Fourier
transform
infrared
spectroscopy
(FT‐IR),
photoelectron
(XPS),
N
2
adsorption–desorption,
thermogravimetric
(TGA),
inductively
coupled
plasma
optical
(ICP‐OES).
prepared
hybrid
material
has
been
demonstrated
be
an
excellent
catalyst
because
it
Zr
Cu
combines
the
high
specific
surface
area
robust
stability
of
MOF
COF.
In
addition,
exhibits
several
advantages,
including
activity,
easy
recovery,
good
repeatability,
stability.
Language: Английский
Hydrogen Adsorption Performance of UiO-66 Functionalized by -OH, -NH2 and -NO2 groups: GCMC Simulation and Experimental Investigation
Jie Cheng,
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Linya Fei,
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Xiaoqing Zhou
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et al.
Materials Today Communications,
Journal Year:
2025,
Volume and Issue:
unknown, P. 112123 - 112123
Published: March 1, 2025
Language: Английский
Comparative Study of Conventional and Ultrasonic‐Assisted Synthesis of Co(II)‐ and Cu(II)‐Based MOFs for CO2 Adsorption
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(4)
Published: March 18, 2025
ABSTRACT
In
this
study,
cobalt(II)
and
copper(II)
metal–organic
frameworks
(MOFs)
were
synthesized
using
conventional
reverse
micelle
(RM)
ultrasonic‐assisted
(UARM).
The
UARM
method
demonstrated
superior
efficacy
in
producing
MOFs
with
improved
properties.
CO
2
adsorption
properties
of
the
investigated
a
volumetric
apparatus.
isotherms
analyzed
various
isotherm
models,
including
Langmuir,
Freundlich,
Dubinin–Radushkevich,
Temkin.
Thermodynamic
parameters
calculated
to
understand
nature
process.
Based
on
RSM
optimization,
capability
Co‐MOF
was
estimated
be
about
8.48
mmol/g.
enhanced
performance
attributed
efficient
surface
area,
properties,
strong
interaction
between
molecules
MOF
surface.
Language: Английский
Near-infrared light-driven polypyrrole/UiO-66-NH2 n-n heterojunction enabled paper-based photoelectrochemical aptasensing of bis(2-ethylhexyl) phthalate
Mao-Yu Wen,
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Yilin Zhuang,
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Yuxin Hao
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et al.
Microchemical Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 113452 - 113452
Published: March 1, 2025
Language: Английский
Bio-decorated of copper nanoparticles over Arabic gum modified magnetic nanoparticles: Its catalytic activity for C-S coupling reactions
Journal of Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown, P. 123669 - 123669
Published: April 1, 2025
Language: Английский
Constructing Cu2+ active sites on pyrazole-decorated UiO-66-NH2 with high activity for photocatalytic CO2 reduction to HCOO−
Xin Chen,
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Ya‐Yu Zhao,
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Meng-Qiang Deng
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et al.
Materials Today Chemistry,
Journal Year:
2025,
Volume and Issue:
46, P. 102712 - 102712
Published: April 19, 2025
Language: Английский
Facile Synthesis of Activated Carbon Supported Cu/NiO Nanocomposite with Dual Functionalities: Photocatalysis and Antimicrobial Activity
Raman Ranjani,
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Ramachandiran Naveenkumar,
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G. Sivakumari
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et al.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(20)
Published: May 1, 2025
Abstract
The
present
study
explores
a
co‐precipitation
approach
for
synthesizing
an
AC‐Cu/NiO
nanocomposite
and
investigates
its
structural,
optical,
morphological
properties.
XRD
analysis
confirmed
the
cubic
phase
of
NiO
nanoparticles.
measured
band
gap
energies
NiO,
Cu/NiO,
were
3.30,
2.97,
2.74
eV,
respectively,
indicating
enhanced
light
absorption
with
composite
formation.
FE‐SEM
images
revealed
asymmetrical,
aggregated
morphologies.
Photocatalytic
performance
was
evaluated
through
degradation
Brilliant
Green
dye
under
UV
light,
showing
efficiencies
64.34%
69.76%
90.69%
after
90
min,
confirming
superior
activity
nanocomposite.
Additionally,
antibacterial
tests
against
six
bacterial
strains
demonstrated
strong
inhibitory
effects
AC‐Cu/NiO,
highlighting
potential
environmental
biomedical
applications.
Language: Английский