African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12478

Full Length Research Paper

Kinetic and equilibrium modeling of Cu(II) and Ni(II) sorption onto physically pretreated Rosa centifolia distillation waste biomass

  Raziya Nadeem1,*, Muhammad Asif Hanif1, Muhammad Riaz1, Abdul Aziz Azhar1, Tahira Iqbal1 and Tariq Mahmood Ansari2  
1Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad (38040), Pakistan. 2Department of Chemistry, Bahauddin Zakariya University, Multan (60800), Pakistan.
Email: [email protected]

  •  Accepted: 14 August 2010
  •  Published: 27 December 2010

Abstract

 

The removal of Cu(II) and Ni(II) from aqueous solution by physically pretreated (boiled, heated and autoclaved) Rosa centifolia distillation waste biomass was conducted in batch conditions. The obtained results revealed that initial metal ion concentration, kinetics, and temperature affected the adsorption capacity of the physically pretreated R. centifolia distillation waste biomass. The Cu(II) and Ni(II) equilibrium sorption data agreed well to Langmuir isotherm model and the sorption kinetics were accurately described by pseudo second order kinetic model. The Cu(II) and Ni(II) uptake capacities (mg g-1) of physical pretreated R. centifoliadistillation waste biomass were in following order: boiled (66.91) > heated (52.51) > autoclaved (49.82) > native (42.68) and boiled (67.55) > heated (65.19) > autoclaved (58.09) > native (45.19), respectively. The nature of R. centifoliadistillation waste biomass surface functionalities was analyzed by FTIR spectroscopy.

 

Key words: Cu(II), Ni(II), isotherms, kinetics, pretreatment, Rosa centifolia.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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