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Vol. 28 No. 2 (2016): Vol 28 Issue 2

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Removal of Mercury(II) through Adsorption on Titania Nanofibers

https://doi.org/10.14233/ajchem.2016.19389
Abhilasha Dixit
Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211 004, India
Kunal Atal
Department of Chemical Engineering, Indian Institute of Technology (BHU), Varanasi-221 005, India
P.K. Mishra
Department of Chemical Engineering, Indian Institute of Technology (BHU), Varanasi-221 005, India
M. Siraj Alam
Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211 004, India

Corresponding Author(s) : M. Siraj Alam

msalam@mnnit.ac.in

Asian Journal of Chemistry, Vol. 28 No. 2 (2016): Vol 28 Issue 2

Abstract

Titania nanofibers were synthesized using a combination of sol-gel and electro-spinning techniques followed by calcination to eliminate organic phase. Effects of precursor and polymer concentration and temperature on fiber morphology were studied. The BET adsorption, FTIR spectroscopy, SEM and XPS techniques were used to characterize titania nanofibers. The obtained fibers were properly aligned and smooth. Presence of titanium(IV) and Ti-O bonds were confirmed. The fibers exhibited a large surface area (740.2 m2/g) and high uptake efficiency (95.5 %) for mercury(II). Adsorption equilibrium obeyed Freundlich isotherm and process followed pseudo second order kinetics.

Keywords

Titania Nanofibers Sol gel Electrospinning Mercury Adsorption
Dixit, A., Atal, K., Mishra, P., & Alam, M. S. (2015). Removal of Mercury(II) through Adsorption on Titania Nanofibers. Asian Journal of Chemistry, 28(2), 415–422. https://doi.org/10.14233/ajchem.2016.19389
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