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Issue 49, 2016, Issue in Progress
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Synthesis and characterization of Co3O4 nanocube-doped polyaniline nanocomposites with enhanced methyl orange adsorption from aqueous solution

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Abstract

In the present study, Co3O4 nanocube-doped polyaniline nanocomposites have been successfully synthesised via an in situ oxidative polymerisation technique using ammonium persulfate (APS) as an oxidant in acidic medium for efficient removal of methyl orange (MO) from aqueous solution. Field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), Brunauer–Emmett–Teller analysis (BET) and Fourier transform infrared spectroscopy (FT-IR) measurements were used to characterise the prepared nanocomposites. The adsorption efficiencies of the PANI homopolymer and Co3O4 nanocube-doped nanocomposites were evaluated by monitoring the adsorption of methyl orange model dye from aqueous solution. The results revealed that the adsorption efficiency of the nanocomposites that were doped with Co3O4 nanocubes was higher than that of the undoped PANI and the adsorption kinetics followed a pseudo-second order reaction. Moreover, the nanocomposite with 4 wt% Co3O4 nanocubes with respect to aniline exhibited a superior adsorption capacity (107 mg g−1) as compared to other absorbents.

Graphical abstract: Synthesis and characterization of Co3O4 nanocube-doped polyaniline nanocomposites with enhanced methyl orange adsorption from aqueous solution

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Publication details

The article was received on 22 Feb 2016, accepted on 08 Apr 2016 and first published on 11 Apr 2016


Article type: Paper
DOI: 10.1039/C6RA04757B
Citation: RSC Adv., 2016,6, 43388-43400
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    Synthesis and characterization of Co3O4 nanocube-doped polyaniline nanocomposites with enhanced methyl orange adsorption from aqueous solution

    S. Shahabuddin, N. M. Sarih, S. Mohamad and S. N. Atika Baharin, RSC Adv., 2016, 6, 43388
    DOI: 10.1039/C6RA04757B

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