Experimental Investigation on the Removal of p-Toluic Acid from Aqueous Solution using Functionalized Polymeric Sorbent
作者： Morteza Davarpanah , Ali Ahmadpour , Tahereh Rohani-Bastami
DOI: 10.1080/00986445.2016.1154850
关键词:
摘要: Polystyrene-divinylbenzene copolymer (PsDVB) was covalently functionalized with monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA) by a simple method. The sorbents were characterized in terms of functionality morphology, used for the removal p-toluic acid (p-TA) from aqueous solution. It found that DEA-PsDVB has higher adsorption capacity than MEA- TEA-PsDVB due to more accessible nitro hydroxyl groups on its surface. Further investigation adsorptive properties indicated maximum uptake p-TA occurred at optimum pH 5.3. kinetics data successfully represented pseudo-first-order model, behavior isotherms followed Freundlich model well. Thermodynamic studies showed onto an endothermic spontaneous process along positive change entropy. regeneration performed 0.1 M NaOH solution, resul...
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