کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
214107 | 1425817 | 2012 | 6 صفحه PDF | دانلود رایگان |
The adsorption of poly(1-vinylimidazole) (PVI) on Na-bentonite from aqueous solutions was investigated as a function of some parameters such as pH, ionic strength, and temperature. The adsorption of PVI increased with increasing pH and decreasing ionic strength and temperature. The electrophoretic mobility of Na-bentonite dispersions was measured at different PVI concentrations and pH. The results have shown that Na-bentonite can be used for adsorption of PVI from aqueous solutions. The second-order kinetic equation best fit the experimental data.
► The adsorption increased with increased pH and decreased with temperature.
► The adsorption data fit the Langmuir model.
► The thermodynamic parameters indicated spontaneous and exothermic adsorption.
Journal: International Journal of Mineral Processing - Volumes 112–113, 10 September 2012, Pages 49–54