Indian Journal of Pure and Applied Physics

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Investigating Adsorption Behaviour of Cobalt Vanadate Nanocomposites on Methylene Blue Dye


Affiliations
1 Department of Chemistry, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
2 Department of Chemistry, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067
3 Special Centre for Nano Science, Jawaharlal Nehru University, Delhi 110 067, India
4 Department of chemistry, Gurukula Kangri (Deemed to be University), Haridwar, UK 249 404, India
 

(α, β)-CoV3O8/V4O7 nanocomposites have been successfully synthesized through a facile hydrothermal method at low temperature. The structural properties of these nanocomposites are characterized via Powder X-ray diffraction, Fourier Transform Infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and X-ray energy dispersive spectroscopy (EDX) analysis. Synthesized nanocomposites were determined to have an approximate crystalline size of 3.72 nm, and SEM imaging exhibited aggregated irregular rectangular shaped nanocomposites. Adsorption kinetics and isotherms were examined, and the outcomes showed that the adsorption followed pseudo-second-order kinetic model and Langmuir isotherm. Adsorption of methylene blue dye was investigated using (α, β)-CoV3O8/V4O7 nanocomposites at varying concentrations of the dye. 20 μM aqueous solution of methylene blue was found to have a high adsorption efficiency of almost 95% in 5 minutes.

Keywords

Methylene blue; FTIR; Adsorption kinetics; Nanocomposites.
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  • Investigating Adsorption Behaviour of Cobalt Vanadate Nanocomposites on Methylene Blue Dye

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Authors

Monica
Department of Chemistry, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
Virender Kumar
Department of Chemistry, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067
Prashant Kumar
Special Centre for Nano Science, Jawaharlal Nehru University, Delhi 110 067, India
Ravinder Kumar
Department of chemistry, Gurukula Kangri (Deemed to be University), Haridwar, UK 249 404, India
Vijay Kumar Goel
Department of Chemistry, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
Vinod Kumar
Special Centre for Nano Science, Jawaharlal Nehru University, Delhi 110 067, India

Abstract


(α, β)-CoV3O8/V4O7 nanocomposites have been successfully synthesized through a facile hydrothermal method at low temperature. The structural properties of these nanocomposites are characterized via Powder X-ray diffraction, Fourier Transform Infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and X-ray energy dispersive spectroscopy (EDX) analysis. Synthesized nanocomposites were determined to have an approximate crystalline size of 3.72 nm, and SEM imaging exhibited aggregated irregular rectangular shaped nanocomposites. Adsorption kinetics and isotherms were examined, and the outcomes showed that the adsorption followed pseudo-second-order kinetic model and Langmuir isotherm. Adsorption of methylene blue dye was investigated using (α, β)-CoV3O8/V4O7 nanocomposites at varying concentrations of the dye. 20 μM aqueous solution of methylene blue was found to have a high adsorption efficiency of almost 95% in 5 minutes.

Keywords


Methylene blue; FTIR; Adsorption kinetics; Nanocomposites.

References