SOL-GEL PREPARATION AND CHARACTERIZATION OF CO/TIO2 NANOPARTICLES: APPLICATION TO THE DEGRADATION OF METHYL ORANGE

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HAMEDANIAN M.; REISI VANANI A.; MAJEDI A.

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Paper Information

Journal: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS) Year:2010 | Volume:7 | Issue:SUPPLEMENT Page(s): 52-58

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Information Journal Paper

Title

SOL-GEL PREPARATION AND CHARACTERIZATION OF CO/TIO2 NANOPARTICLES: APPLICATION TO THE DEGRADATION OF METHYL ORANGE

Author(s)

HAMEDANIAN M. | REISI VANANI A. | MAJEDI A. | Issue Writer Certificate

Keywords

SOL-GEL CHEMISTRY

PHOTOCATALYTIC ACTIVITY

NANOSTRUCTURES

COBALT DOPED TIO2

METHYL ORANGE DEGRADATION

Abstract

Cobalt doped titania nanoparticles were synthesized by sol-gel method using titanium(IV) isopropoxide and cobalt nitrate as precursors. X-Ray diffraction (XRD) results showed that titania and Co/TiO2 nanoparticles only include anatase phase. The framework substitution of Co in TiO2 nanoparticles was established by XRD, scanning electron microscopy equipped with energy dispersive X-ray microanalysis (SEM-EDX) and Fourier transform infrared (FT-IR) techniques. Transmission electron microscopy (TEM) images confirmed the nanocrystalline nature of Co/TiO2. The increase of cobalt doping enhanced "red-shift" in the UV-Vis absorption spectra. The dopant suppresses the growth of TiO2 grains, agglomerates them and shifts the band absorption of TiO2 from ultraviolet (UV) to visible region. The PHOTOCATALYTIC ACTIVITY of samples was tested for degradation of methyl orange (MO) solutions. Although the PHOTOCATALYTIC ACTIVITY of undoped TiO2 was found to be higher than that of Co/TiO2 under UV irradiation, the presence of 0.5% Co dopant in 2 resulted in a catalyst with the highest activity under visible irradiation.

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APA: Copy

HAMEDANIAN, M., REISI VANANI, A., & MAJEDI, A.. (2010). SOL-GEL PREPARATION AND CHARACTERIZATION OF CO/TIO₂ NANOPARTICLES: APPLICATION TO THE DEGRADATION OF METHYL ORANGE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 7(SUPPLEMENT), 52-58. SID. https://sid.ir/paper/282410/en

Vancouver: Copy

HAMEDANIAN M., REISI VANANI A., MAJEDI A.. SOL-GEL PREPARATION AND CHARACTERIZATION OF CO/TIO₂ NANOPARTICLES: APPLICATION TO THE DEGRADATION OF METHYL ORANGE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)[Internet]. 2010;7(SUPPLEMENT):52-58. Available from: https://sid.ir/paper/282410/en

IEEE: Copy

M. HAMEDANIAN, A. REISI VANANI, and A. MAJEDI, “SOL-GEL PREPARATION AND CHARACTERIZATION OF CO/TIO₂ NANOPARTICLES: APPLICATION TO THE DEGRADATION OF METHYL ORANGE,” JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), vol. 7, no. SUPPLEMENT, pp. 52–58, 2010, [Online]. Available: https://sid.ir/paper/282410/en

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