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Synthesis and application of diethanolamine-functionalized polystyrene as a new sorbent for the removal of p-toluenesulfonic acid from aqueous solution

Davarpanah, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jiec.2015.05.034
  3. Publisher: Korean Society of Industrial Engineering Chemistry , 2015
  4. Abstract:
  5. Polystyrene resin was functionalized by diethanolamine for the efficient removal of p-toluenesulfonic acid (p-TSA) from aqueous solution. Functionalized adsorbent (DEA-PS) was characterized by elemental analysis, Fourier transform infrared spectroscopy, point of zero charge measurement and field-emission scanning electron microscopy. According to the results, maximum removal of p-TSA was observed at the pH range of 2.5-5. The adsorption kinetics of p-TSA onto DEA-PS was represented by pseudo-first-order model and the equilibrium data followed Langmuir model well. The adsorption process was endothermic and spontaneous, along with the positive change of entropy. The regeneration of DEA-PS was also conducted by 1. M NaOH solution
  6. Keywords:
  7. Equilibrium ; Functionalized polymeric resin ; Conductive plastics ; Ethanolamines ; Field emission microscopes ; Fourier transform infrared spectroscopy ; Kinetics ; Phase equilibria ; Polystyrenes ; Resins ; Scanning electron microscopy ; Solutions ; Adsorption kinetics ; Adsorption process ; Field emission scanning electron microscopy ; p-Toluene sulfonic acids ; Point of zero charge ; Polymeric resin ; Pseudo-first-order ; Ptoluenesulfonic acid ; Adsorption
  8. Source: Journal of Industrial and Engineering Chemistry ; Volume 30 , October , 2015 , Pages 281-288 ; 1226086X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1226086X15002713