| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 580480 | Journal of Hazardous Materials | 2010 | 6 Pages |
Abstract
Batch stirred tank experiments were carried out to study the effect of pH (range 2-10, at 294Â K) and temperature (277, 294 and 313Â K, at pH 5) on the uptake of Hg2+ ions by ETS-4 microporous titanosilicate. Changes in the pH have a significant effect on the ETS-4 uptake efficiency, the optimal range being 4-6. Due to competition effects, the chemical used to adjust the pH of the Hg2+ solution also influences the uptake efficiency. Thermodynamic parameters for the uptake of Hg2+ ions were calculated. For the temperature range studied, the Hg2+ sorption increased with decreasing temperature.
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Authors
Cláudia B. Lopes, Marta Otero, Zhi Lin, Carlos Manuel Silva, Eduarda Pereira, João Rocha, Armando C. Duarte,