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Vol.4 , No. 2, Publication Date: May 16, 2018, Page: 7-17
SO<sub>4</sub> as regenerant. The copper-nanofiber mix has a high potency for use in industries as a result of its good water stability, favourable heat capacity, high adsorption capacity and good recyclability.&picture=http://www.aascit.org/aascit/decorators/img/journal/978.jpg)
| [1] | Nurudeen Olanrewaju Sanyaolu, Department of Chemistry, Federal University of Agriculture Abeokuta, Abeokuta, Nigeria. |
| [2] | Sheriff Adewuyi, Department of Chemistry, Federal University of Agriculture Abeokuta, Abeokuta, Nigeria. |
| [3] | Taofik Shittu, Department of Food Science and Technology, Federal University of Agriculture Abeokuta, Abeokuta, Nigeria. |
| [4] | Catherine Oluyemisi Eromosele, Department of Chemistry, Federal University of Agriculture Abeokuta, Abeokuta, Nigeria. |
| [5] | Nelson Torto, Department of Chemistry, Rhodes University, Grahamstown, South Africa. |
Fibrous materials prepared by the electrospinning process are increasingly attracting attention due to the structural advantages conveyed by the nanosized diameter of the constituent fibers. Consequently, an environmentally friendly Cu-crown chitosan nanofiber obtained from naturally available sources was developed. Chitosan derivative was synthesized via Schiff base condensation of salicylaldehyde and chitosan. The iminochitosan formed was electrospun into nanofiber mat at voltage of at 24 KV and flow rate 0.9 mLh-1. The nanofiber was characterized via IR, SEM, BET, TGA and DSC and it showed a good physical stability in water and relatively high heat capacity. Kinetic study shows that the sorption of copper using chitosan nanofiber follows a pseudo-first order equation. The description of the isotherm can best be done using the Langmuir isotherm model. The maximum sorption capacity and sorption affinity constant were calculated as 500.00 mg g-1 and 0.34704 Lmg-1. Desorption capacity 92% was obtained using (NH4)SO4 as regenerant. The copper-nanofiber mix has a high potency for use in industries as a result of its good water stability, favourable heat capacity, high adsorption capacity and good recyclability.
Keywords
Electrospinning, Nanofiber, Iminochitosan, Pretreatment
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