Application of immobilized sulfonic acid on the cobalt ferrite magnetic nanocatalyst (CoFe2O4@SiO2@SO3H) in the synthesis of spirooxindoles
Sign Up to like & getrecommendations! Published in 2019 at "Research on Chemical Intermediates"
DOI: 10.1007/s11164-019-03928-8
Abstract: Sulfonic acid immobilized on the surface of magnetically cobalt ferrite/silicate is a green, convenient, efficient and recyclable catalyst which can be applied in organic reactions ranges from lab to industry goals as a solid acid… read more here.
Keywords: catalyst; cobalt ferrite; cofe2o4 sio2; sulfonic acid ... See more keywords
Application of CoFe2O4@SiO2@Chitosan Nanoparticles for Cadmium (II) Preconcentration in Totally Different Samples and its Determination through ETAAS
Sign Up to like & getrecommendations! Published in 2020 at "Silicon"
DOI: 10.1007/s12633-020-00663-3
Abstract: X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Vibrating Sample Magnetometer (VSM), Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM), were all used for purposes of the exploration of different characteristics on the part… read more here.
Keywords: microscopy; chitosan nanoparticles; cofe2o4 sio2; cofe2o4 ... See more keywords
CoFe2O4@SiO2: A magnetically recyclable heterogeneous catalyst for the synthesis of spirooxindole derivatives
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2019.120996
Abstract: Abstract We described the characterization, preparation, and catalytic application of CoFe2O4@SiO2 nanoparticle. The characterization was done using transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), scanning electron microscopy coupled with energy dispersive X-ray (SEM-EDX), and… read more here.
Keywords: magnetically recyclable; microscopy; recyclable heterogeneous; cofe2o4 sio2 ... See more keywords
Synthesis and characterization of CoFe2O4@SiO2@NH-NH2-PCuW as an acidic nano catalyst for the synthesis of 1,4-benzodiazepines and a powerful dye remover
Sign Up to like & getrecommendations! Published in 2019 at "Polyhedron"
DOI: 10.1016/j.poly.2019.03.046
Abstract: Abstract A novel magnetic heterogeneous nanocatalyst CoFe2O4@SiO2@NH-NH2-PCuW was synthesized and characterized. This powerful catalyst possesses Bronsted and Lewis acid properties. The presence of Cu enhances the acidity of this catalyst because of the increase in… read more here.
Keywords: nh2 pcuw; cofe2o4 sio2; synthesis; sio2 nh2 ... See more keywords
Core–shell superparamagnetic monodisperse nanospheres based on amino-functionalized CoFe2O4@SiO2 for removal of heavy metals from aqueous solutions
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DOI: 10.1039/c6ra27728d
Abstract: To remove heavy metals from aqueous solutions, amino-functionalized superparamagnetic CoFe2O4@SiO2 (CoFe2O4@SiO2–NH2) core–shell nanospheres were designed and constructed. In particular, well-defined CoFe2O4 nanoparticles (NPs) were synthesized by reverse co-precipitation. The shell of the CoFe2O4 NPs was… read more here.
Keywords: aqueous solutions; cofe2o4 sio2; heavy metals; cofe2o4 ... See more keywords
Preparation of CoFe2O4/SiO2 Nanocomposites at Low Temperatures Using Short Chain Diols
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Chemistry"
DOI: 10.1155/2017/7943164
Abstract: The preparation of 70% CoFe2O4/30% SiO2 (wt%) nanocomposites by sol-gel method using three short chain diols (1,2-ethanediol, 1,3-propanediol, and 1,4-butanediol) as chelators was studied. The Fourier transformed infrared spectra and X-ray diffraction patterns were used… read more here.
Keywords: chain; preparation cofe2o4; cofe2o4 sio2; chain diols ... See more keywords
New Insights into the Magnetic Properties of CoFe2O4@SiO2@Au Magnetoplasmonic Nanoparticles
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12060942
Abstract: We report the successful synthesis and a complete magnetic characterization of CoFe2O4@SiO2@Au magnetoplasmonic nanoparticles. The CoFe2O4 magnetic nanoparticles were prepared using the hydrothermal method. A subsequent SiO2 shell followed by a plasmonic Au shell were… read more here.
Keywords: sio2 magnetoplasmonic; shell; magnetoplasmonic nanoparticles; cofe2o4 sio2 ... See more keywords