1,3,5-triazine-triethylenetetramine polymer: an efficient adsorbent for removal of Cr(VI) ions from aqueous solution |
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| Authors: | Sezen Sivrikaya Elif Cerrahoglu Mustafa Arslan |
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| Institution: | 1. Chemistry Department, Sciences &2. Arts Faculty, Sakarya University, Sakarya, Turkey;3. Environmental Engineering Department, Engineering Faculty, Bülent Ecevit University, Zonguldak, Turkey |
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| Abstract: | The synthesis of 1,3,5-triazine-triethylenetetramine (TATETA), its characterization by infrared spectroscopy and elemental analysis, and its application for removal of Cr(VI) ions from aqueous solution is reported. The effects of pH, contact time, initial concentration of Cr(VI), sorbent dose, and temperature on adsorption were investigated and optimized by batch adsorption experiments. Adsorption was highest at acidic conditions with an equilibration time of 25 min. The adsorption followed a Langmuir model, with an adsorption capacity of 303 mg g?1, was second order in its kinetics, and exothermic and thus spontaneous. |
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| Keywords: | chelating resin chromium(VI) adsorption kinetics isotherms |
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