7450-55-7Relevant academic research and scientific papers
A rapid, facile and green synthesis of Ag@AgCl nanoparticles for the effective reduction of 2,4-dinitrophenyl hydrazine
Devi, Th. Babita,Ahmaruzzaman,Begum, Shamima
, p. 1497 - 1506 (2016)
In this study, we have developed a green and single-step process for the fabrication of Ag@AgCl nanoparticles (NPs) using the leaf extract of Momordica charantia. This method does not require the utilization of any surfactant/halide source or external ene
Green synthesis of a Cu/MgO nanocomposite by: Cassytha filiformis L. extract and investigation of its catalytic activity in the reduction of methylene blue, congo red and nitro compounds in aqueous media
Nasrollahzadeh, Mahmoud,Issaabadi, Zahra,Sajadi, S. Mohammad
, p. 3723 - 3735 (2018)
This work reports the green synthesis of a Cu/MgO nanocomposite using Cassytha filiformis L. extract as a reducing agent without stabilizers or surfactants. The immobilization of Cu NPs was confirmed by Fourier transform infrared spectroscopy (FT-IR), X-r
A novel magnetic starch nanocomposite as a green heterogeneous support for immobilization of Cu nanoparticles and selective catalytic application in eco-friendly media
Khalilzadeh, Mohammad A.,Nasiri, Atefeh,Zareyee, Daryoush
, (2021/10/01)
In this work, Stipa capensis extract mediated the synthesis of Cu nanoparticles (Cu NPs) and their immobilization on the surface of nanostarch-coated Fe3O4. The prepared nanocatalyst (Cu NPs@Fe3O4-nanostarch) wa
High catalytic activity of a new Ag phosphorus ylide complex supported on montmorillonite: synthesis, characterization, and application for room temperature nitro reduction
Karami, Kazem,Rahimi, Mahzad,Dinari, Mohammad
, p. 281 - 291 (2018/03/29)
In this work, the phosphorus ylide, [PPh3CHC(O)CH2Cl], was reacted with AgNO3 to give the [Ag{C(H)PPh3C(O)CH2Cl}2]+NO3? as the product. Then, it was supported on the modified montmorillonite nanoclay to prepare a new catalyst for the reduction reaction. The structure and morphology of the nanoclay catalyst were characterized by FT-IR, X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray analysis and transmission electron microscopy techniques; also, the content of silver was obtained by inductively coupled plasma analyzer. This composition was exploited to study its catalytic activity in the reduction in aromatic nitro compounds; it displayed the high catalytic activity. Factors such as catalyst amount, solvent, temperature and reaction time were all systematically investigated to elucidate their effects on the yield of catalytic reduction in nitroarenes. This catalytic system exhibited high activity toward aromatic nitro compounds under mild conditions. The catalyst was reused five times without any significant loss in its catalytic activity.
Experimental and quantum chemical study on nano-copper immobilized on magnetic graphitic carbon nitride core shell particles; a reusable heterogeneous catalyst toward reduction of nitro arenes
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, (2019/03/05)
A new magnetic material, which named CuFe2O4?SiO2?g-C3N4/Cu with a core/shell morphology has been designed and synthesized. For the first time ever, the mixture of carbon and g-C3N4 layer was applied as an effective linker for immobilization of Cu metal on the catalyst. The physiochemical properties of the catalyst were identified by XRD, FT-IR, VSM, FE-SEM and TEM characterization techniques. The reduction of nitro compounds to the corresponding amines was investigated in the presence of NaBH4 at 55 °C in water. Quantum chemical study reveals that the addition of Cu atoms to the g-C3N4 layer induce a slight structural deformation via changing the bond lengths and bond orders, also the type of interaction of Cu atoms and nitrogen atoms of g-C3N4 is mainly electrostatic in nature. Induced pattern of charge distribution provided by Electrostatic Potential Map exhibits the attractive regions for electrophiles and nucleophiles interacting with this system.
