Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 294, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2019.111554
Keywords
Ibuprofen; Diclofenac; Naproxen; Adsorption; Waste tire rubber; Chitosan
Funding
- National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand through its program of Center of Excellence Network
- Environmental Analysis Research Unit (EARU)
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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 23 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. (C) 2019 Elsevier B.V. All rights reserved.
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