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Information Journal Paper

Title

MICROWAVE-ASSISTED RAPID SYNTHESIS OF CO3O4 NANORODS FROM COC2O4.2H2O NANORODS AND ITS APPLICATION IN PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE UNDER VISIBLE LIGHT IRRADIATION

Pages

  284-297

Abstract

 In this work, Co3O4 nano rods were successfully prepared by microwave-assisted solid state decomposition of rod-like CoC2O4.2H2O precursor within a very short reaction time (6 min) without the use of a solvent/ surfactant and complicated equipment. The as-obtained Co3O4 nano rods were fully characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet–visible spectroscopy (UV–Vis), energy-dispersive X-ray spectroscopy (EDX), and magnetic measurements. TEM and SEM images showed that the Co3O4 nano rods have a length of 1-3 μm and diameter of 40-80 nm. FT-IR, XRD, EDX and selected area electron diffraction demonstrated that the nano rods are composed of pure cubic phase Co3O4. Magnetic measurements at room temperature suggested the existence of a weak ferromagnetic behavior. The optical spectrum indicated two direct band gaps at 2.20 and 3.60 eV with a blue shift compared with the bulk sample. The photo catalytic activity of Co3O4 nano rods was investigated for the degradation of methylene blue (MB) as a model of dye pollutants in the presence of H2O2 as a green oxidant. The Co3O4 nano rods showed high efficiency for the degradation of MB dye by using H2O2 under visible light irradiation. Trapping experiments indicated that hydroxyl (•OH) radicals were the main reactive species for dye degradation in the present photo catalytic system. In addition, the possible photo degradation mechanism was also proposed based on the trapping experiment results.

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    APA: Copy

    BAZGIR, SADIGHEH, & FARHADI, SAEED. (2017). MICROWAVE-ASSISTED RAPID SYNTHESIS OF CO3O4 NANORODS FROM COC2O4.2H2O NANORODS AND ITS APPLICATION IN PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE UNDER VISIBLE LIGHT IRRADIATION. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), 8(4), 284-297. SID. https://sid.ir/paper/322355/en

    Vancouver: Copy

    BAZGIR SADIGHEH, FARHADI SAEED. MICROWAVE-ASSISTED RAPID SYNTHESIS OF CO3O4 NANORODS FROM COC2O4.2H2O NANORODS AND ITS APPLICATION IN PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE UNDER VISIBLE LIGHT IRRADIATION. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND)[Internet]. 2017;8(4):284-297. Available from: https://sid.ir/paper/322355/en

    IEEE: Copy

    SADIGHEH BAZGIR, and SAEED FARHADI, “MICROWAVE-ASSISTED RAPID SYNTHESIS OF CO3O4 NANORODS FROM COC2O4.2H2O NANORODS AND ITS APPLICATION IN PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE UNDER VISIBLE LIGHT IRRADIATION,” INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), vol. 8, no. 4, pp. 284–297, 2017, [Online]. Available: https://sid.ir/paper/322355/en

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