Solvothermal synthesis of sub‐200 nm Fe
            <sub>3</sub>
            O
            <sub>4</sub>
            submicrospheres with enhanced catalytic performances by using acicular goethite as solid precursor

Chen, Wu; Xiong, Leisha; Chen, Fengxi

doi:10.1049/mnl.2017.0206

Cited by 14 publications

(8 citation statements)

References 24 publications

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“…In the [Fe 3 O 4 NP‐INS‐(C 32 H 28 N 4 )] (5) , Fe 3 O 4 NPs fabricated through this approach show a relatively high crystallinity. Indeed, the lower M S value 26.56 emug −1 compared to the one reported for bulk iron oxide (90–100 emug −1 ) is due to the prevention of aggregation phenomena . From the results described above, we also suggest an explanation reaction in Figure for the [Fe 3 O 4 NP‐INS‐(C 32 H 28 N 4 )] (5) .…”

Section: Resultssupporting

confidence: 57%

“…Moreover, Fe 3 O 4 NPs offer a high potential of application in biomedical and bioengineering fields, such as cancer thermotherapy, magnetic resonance imaging (MRI), labeling and sorting of cells, as well as separation of biomedical products . Among the practically used methods for the synthesis of Fe 3 O 4 NPs, the following main ones should be mentioned: co‐precipitation, solvothermal and Ionothermal . The co‐precipitation method is the most used technique to synthesize Fe 3 O 4 NPs because of its easy operation, lower reaction temperature and eco‐friendly procedure .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Chaabane

Chahdoura²,

Moslah

et al. 2019

Applied Organom Chemis

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This work describes a simple synthesis of complexes of the type [M(C32H28N4)Cl2], where M = Ni (II), Cu (II) and Fe (II) and a novel complex of magnetite nanoparticle (Fe3O4NP) inside (INS) tetraaza macrocyclic Schiff base ligand (C32H28N4): [Fe3O4NP‐INS‐(C32H28N4)], which was prepared by using a novel co‐precipitation method of coordinated ferric ion (Fe3+) in the complex [Fe(C32H28N4)Cl2] under mild conditions. The synthesized compounds were characterized and compared with a various physic‐chemical techniques like: Fourier transform infrared (FT‐IR), ultraviolet–visible spectroscopic techniques (UV–Vis), 1‐dimensional (1D) 1H‐NMR, 13C‐NMR spectroscopic techniques, mass spectra, Powder X‐ray diffraction (PXRD), Vibrating sample magnetometer (VSM), Scanning electron microscopy (SEM), elemental analysis and molar conductance measurements. Furthermore, the highest saturation magnetization was 26.56 emu.g−1 obtained from [Fe3O4NP‐INS‐(C32H28N4)] (diameter of Fe3O4NPs~20.87 nm) that prove easy separation by an external magnetic field. In vitro screening of all the compounds against different species of bacteria and fungi shows that [Fe3O4NP‐INS‐(C32H28N4)] is effective against the tested strains as compared to the tetraaza macrocyclic ligand and selected complexes. The cytotoxic activity of the all compounds was also examined in 3 human tumor cell lines as U87, MDA‐MB‐231 and LS‐174. The complex [Fe3O4NP‐INS‐(C32H28N4)] shows moderate and strong cytotoxic activity against brain cancer, colon cancer and breast cancer (U87, MDA‐MB‐231 and LS‐174 respectively), without showing cytotoxicity towards peripheral blood mononucleocyte (PBMC) cells.

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Section: Resultssupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Chaabane

Chahdoura²,

Moslah

et al. 2019

Applied Organom Chemis

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“…In the present work, the promotional effect of short‐chain saturated alcohols as additives on Fe 3 O 4 ‐catalyzed decomposition of H 2 O 2 was demonstrated for the first time, and exploited to enhance the catalytic performance of Fe 3 O 4 microspheres for selective oxidation of PhCH 2 OH to PhCHO with H 2 O 2 in water (Scheme ). This target reaction is a green route to produce chlorine‐free PhCHO, which is in high demand from the perfumery and pharmaceutical industries …”

Section: Introductionmentioning

confidence: 99%

“…This target reaction is a green route to produce chlorine-free PhCHO, which is in high demand from the perfumery and pharmaceutical industries. 23,25,26…”

Section: Introductionmentioning

confidence: 99%

Promotional effect of short‐chain saturated alcohols on Fe₃O₄‐catalyzed decomposition of H₂O₂ and its application in selective oxidation of benzyl alcohol

Zhang

Xiao

Chen

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Hydrogen peroxide (H2O2) has been used widely in diverse areas of biotechnology, environmental remediation and organic synthesis wherein its catalytic activation to generate reactive oxygen species (e.g. hydroxyl radicals) is of vital importance. Magnetite (Fe3O4) microspheres are attractive heterogeneous peroxidase‐like catalysts due to many technological advantages (e.g. biocompatible, stable and magnetically recoverable). However, its peroxidase‐like activity has to be improved for practical applications. RESULTS Small amounts of short‐chain saturated alcohols (e.g. methanol, ethanol, iso‐propanol, tert‐butanol, mono‐ethylene glycol and glycerol) increased collision frequency between H2O2 and Fe3O4 (e.g. by about two orders of magnitude with the addition of 1 mol% glycerol) via facilitating the nucleophilic addition of H2O2 to surface Fe sites and promoted Fe3O4‐catalyzed decomposition of H2O2 and selective oxidation of benzyl alcohol with H2O2 in water. In addition, Fe3O4 microspheres were magnetically recoverable and reusable for at least five times without loss of catalytic activity and selectivity. CONCLUSIONS The Fe3O4/trace alcohol catalytic system decomposed H2O2 effectively. Its potential application was demonstrated by selective oxidation of benzyl alcohol with H2O2 in water in this work. This simple and efficient catalytic system may be applied also to other oxidative transformations in organic syntheses, or to oxidative degradation of organic pollutants in environmental remediation. © 2019 Society of Chemical Industry

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“…have been extensively applied in many fields, especially for magnetic induced targeting drug and gene delivery, which are due to their specific magnetic properties, non-toxicity and easy to synthesis [1][2][3][4]. While bare Fe 3 O 4 nanoparticles tend to aggregate that limit their applications.…”

Section: Introduction: Fe 3 O 4 Nanoparticles As a Magnetic Nanomaterialsmentioning

confidence: 99%

Synthesis, characterisation, and evaluation of core–shell Fe ₃ O ₄ /SiO ₂ /polypyrrole composite nanoparticles

Qiao

et al. 2018

Micro & Nano Letters

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This work reported a facile synthetic approach to synthesise core-shell Fe 3 O 4 /SiO 2 /polypyrrole composite nanoparticles with the superparamagnetic Fe 3 O 4 nanoparticles as the inner core. The core-shell Fe 3 O 4 /SiO 2 /polypyrrole composite nanoparticles were prepared through a three-step approach involving co-precipitation for the synthesis of Fe 3 O 4 nanoparticles, Stöber method for SiO 2 intermediate layer coating and solvothermal methods for polypyrrole shell. The as-prepared nanoparticles were characterised using transmission electron microscope, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analyses and vibration sample magnetometer. The particle size of the inner core Fe 3 O 4 nanoparticles was found to be 15 ± 3 nm, and the thicknesses of the SiO 2 shell and polypyrrole shell were ∼2.5 and ∼5 nm, respectively. From Fe 3 O 4 nanoparticles to Fe 3 O 4 /SiO 2 and then to Fe 3 O 4 /SiO 2 /polypyrrole composite nanoparticles, the magnetic saturation gradually decreases from 67 to 34 emu/g, then dropped to 7 emu/g. The as-prepared Fe 3 O 4 /SiO 2 /polypyrrole composite nanoparticles showed potential applications in drug and gene delivery systems.

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Solvothermal synthesis of sub‐200 nm Fe ₃ O ₄ submicrospheres with enhanced catalytic performances by using acicular goethite as solid precursor

Cited by 14 publications

References 24 publications

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Promotional effect of short‐chain saturated alcohols on Fe₃O₄‐catalyzed decomposition of H₂O₂ and its application in selective oxidation of benzyl alcohol

Synthesis, characterisation, and evaluation of core–shell Fe ₃ O ₄ /SiO ₂ /polypyrrole composite nanoparticles

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Solvothermal synthesis of sub‐200 nm Fe 3 O 4 submicrospheres with enhanced catalytic performances by using acicular goethite as solid precursor

Cited by 14 publications

References 24 publications

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe3O4 nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe3O4 nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Promotional effect of short‐chain saturated alcohols on Fe3O4‐catalyzed decomposition of H2O2 and its application in selective oxidation of benzyl alcohol

Synthesis, characterisation, and evaluation of core–shell Fe 3 O 4 /SiO 2 /polypyrrole composite nanoparticles

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About

Solvothermal synthesis of sub‐200 nm Fe ₃ O ₄ submicrospheres with enhanced catalytic performances by using acicular goethite as solid precursor

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe₃O₄ nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

Promotional effect of short‐chain saturated alcohols on Fe₃O₄‐catalyzed decomposition of H₂O₂ and its application in selective oxidation of benzyl alcohol

Synthesis, characterisation, and evaluation of core–shell Fe ₃ O ₄ /SiO ₂ /polypyrrole composite nanoparticles