Biosorptive Decontamination of Acid Red-87 Dye from Wastewater by Citrus limonum Peels: Ecofriendly Approach

  • Shoomaila Latif Department of Chemistry, University of Sargodha, Sargodha
  • Rabia Rehman Institute of Chemistry, University of the Punjab, Lahore
  • Muhammad Imran Institute of Chemistry, University of the Punjab, Lahore
  • Shahid Iqbal Department of Chemistry, University of Sargodha, Sargodha

Abstract

Batch adsorption experiments were conducted to evaluate efficiency of lemon peels (Citrus limonum) for adsorption of Acid Red-87 dye from aqueous media. The effects of various parameters, i.e. particle size, pH, sorbent dose, sorbate concentration, temperature, contact time and agitation speed on biosorption efficiency were optimized. Isotherm models: Langmuir and Freundlich were employed to understand the mechanism of adsorption. The monolayer adsorption capacity calculated by Langmuir isotherm was found to be 0.6240 mg/g. Thermodynamic studies revealed exothermic and spontaneous nature of sorption process, while kinetics guided pseudosecond order behaviour. All these factors indicated that Citrus limonum peels are potential adsorbent for the removal of Acid Red-87.

Published
Jun 27, 2018
How to Cite
LATIF, Shoomaila et al. Biosorptive Decontamination of Acid Red-87 Dye from Wastewater by Citrus limonum Peels: Ecofriendly Approach. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 19, n. 1, p. 44-52, june 2018. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/392>. Date accessed: 19 july 2018. doi: http://dx.doi.org/10.21743/pjaec/2018.06.04.