Removal of Copper (II) and Zinc (II) ions from Aqueous Solution by Biosorption onto Aminated Tea Waste

Authors

  • Bindra Shrestha Central Department of Chemistry, Tribhuvan University, Kirtipur
  • P. L. Homagai Central Department of Chemistry, Tribhuvan University, Kirtipur
  • M. R. Pokhrel Central Department of Chemistry, Tribhuvan University, Kirtipur
  • K. N. Ghimire Central Department of Chemistry, Tribhuvan University, Kirtipur

DOI:

https://doi.org/10.3126/jncs.v28i0.8058

Keywords:

Tea waste, Biosorbent, Amination, Langmuir isotherm, Heavy metals

Abstract

An efficient and cost effective non-conventional biosorbent has been prepared from tea waste by amination with ethylenediamine. The prepared adsorbent, ATW was characterized using elemental analysis, scanning electron microscopic image and FTIR spectroscopy. Its adsorption behavior for Cu++ and Zn++ ions was studied by using batch adsorption method. The maximum adsorption capacity onto ATW was found to be 46.4mg/g and 30.08 mg/g for Cu++ and Zn++ respectively. The effect of pH of solution, initial metal concentration and contact time for removal of metal ions were studied. The applicability of data was analyzed by Langmuir isotherm. The kinetics of removal of Cu++ and Zn++ ions was studied using pseudosecond order model, in which the data were well fitted.

DOI: http://dx.doi.org/10.3126/jncs.v28i0.8058

Journal of Nepal Chemical Society
Vol.28, 2011
Page 48-53
Uploaded date: May 7, 2013

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Published

2013-05-07

How to Cite

Shrestha, B., Homagai, P. L., Pokhrel, M. R., & Ghimire, K. N. (2013). Removal of Copper (II) and Zinc (II) ions from Aqueous Solution by Biosorption onto Aminated Tea Waste. Journal of Nepal Chemical Society, 28, 48–53. https://doi.org/10.3126/jncs.v28i0.8058

Issue

Vol. 28 (2011)

Section

Articles

License

© Journal of Nepal Chemical Society