Adsorption of triton X-100 on silica gel: effects of temperature and alcohols |
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| Authors: | Babak Samiey Somayeh Golestan |
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| Affiliation: | (1) College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China;(2) Department of Environmental Engineering, Xiamen University of Technology, Xiamen, 361005, China |
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| Abstract: | Adsorption of Triton X-100 (TX-100) on silica gel has been studied as a function of temperature (308–328 K) and composition for mixtures of water with ethanol or t-butanol. The adsorption capacity of silica gel for TX-100 decreases with increase in alcohol content. Adsorption isotherms of TX-100 on silica gel are four-region and were analyzed using the ARIAN (adsorption isotherm regional analysis) model. Data in regions 2, 3 and 4 were fitted to the Temkin, bilayer and reverse desorption isotherms, respectively. The results show that adsorption of TX-100 on silica gel in water and alcohol-water binary mixtures occurs mainly through formation of monolayer surface aggregates or low bilayer coverage.  |
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