Removal of ibuprofen, diclofenac, and naproxen from water using chitosan-modified waste tire crumb rubber

By Warintorn Phasuphan, N. Praphairaksit, A. Imyim. Journal of Molecular Liquids, 2019

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Abstract The removal of anti-inflammatory drugs ibuprofen, diclofenac, and naproxen from aqueous solutions was investigated by a novel adsorbent which was prepared by the assembly of polymeric chitosan onto waste tire crumb rubber. The modified adsorbent demonstrated a capacity of 70.0, 17.7 and 2.3 mg/g for ibuprofen, diclofenac and naproxen, respectively. Various parameters affecting the removal efficiency of these drugs were optimized. pH 6 is optimal for the simultaneous removal of all three drugs. The adsorption of each of these anti-inflammatory drugs was found to follow the Freundlich isotherm model. In all, the chitosan-modified rubber has been demonstrated as an effective and economical adsorbent for removal of these compounds from water.

Subfields: Analytical Chemistry, Pollution, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/e41d00e37b830420cbcbd1f2e6da3410ef54a879