High Performance Removal of Anionic and Cationic Dye Pollutants with Co3O4 Modified Nanoclinoptilolite: Kinetics and Adsorption Equilibrium Studies

In this paper Co 3 O 4 doped nanoclinoptilolite was synthesized and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDX) techniques. The adsorption efficiency for removing of me...

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Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials 2018-11, Vol.28 (6), p.2264-2274
Main Authors: Mohammadzadeh Kakhki, Roya, Hedayat, Samira, Ahsani, Fatemeh
Format: Article
Language:English
Subjects:
Adsorption
Cationic dyes
Chemistry
Chemistry and Materials Science
Cobalt oxides
Dyes
Energy dispersive X ray spectroscopy
Field emission microscopy
Fourier transforms
Inorganic Chemistry
Methylene blue
Nanocomposites
Organic Chemistry
Pollutants
Polymer Sciences
Scanning electron microscopy
X-ray diffraction
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Summary:In this paper Co 3 O 4 doped nanoclinoptilolite was synthesized and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDX) techniques. The adsorption efficiency for removing of methylene blue was about 95% in 10 min. The effect of some factors such as adsorbent dose, concentration of analyte and pH was investigated for enhancing the removing efficiency. Moreover Freundlich and Langmuir patterns were plotted for this new nanocomposite. Maximum of adsorption capacity was obtained from slope of Langmuir and was about 25 mg/g. The kinetic study for methylene blue shows a second order kinetic with rate constant about 0.02 g/mg/min. The prepared nanocomposite was successfully applied for removing some color compounds such as methylene blue, methyl green, and methyl red and also binary dye mixtures.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-018-0937-1