| Autor: |
S. Erdenechimeg, T. Jadambaa, I. Sukhbaatar, A. Tsetsegmaa |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
2008 Third International Forum on Strategic Technologies. |
| DOI: |
10.1109/ifost.2008.4602855 |
| Popis: |
The adsorbent materials were prepared by mixing PS and RPF using physical activation method. The starting PS consists of inorganic components of SiO2, CaO and Al2O3 and RPF has mainly high amount of carbon. The commercial activated carbon was used as a reference material to compare with the prepared samples. The prepared samples show the crystalline phases of calcite (CaCO3) anorthite ((Ca, Na) (Al, Si)2Si2O8) and gehlenite (Ca2Al2SiO7) by heating above 900degC. The sample calcined at 700degC has the highest specific surface area (49 m2/g) but was quite low compared with the reference material (1122 m2/g). The ability of the prepared samples to remove toxic ions e.g. nickel (Ni2+) and methylene blue from aqueous solution was investigated by a batch method. The samples (showing amorphous phase) prepared at 700degC showed higher uptake ability for Ni2+ (3.55mmol/g) ions than that of the commercial activated carbon. The main mechanisms of Ni2+ uptake were the ion substitution. In methylene blue adsorption experiment, the adsorption capacities of obtained samples were lower (0.58 mmol/g) than the commercial activated carbon (1.03 mmol/g). These prepared materials are concluded to be a candidate for a cost effective adsorbent. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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