Exchange Behaviour of Amorphous AlPO towards Cu Ions
Sorption studies of Cu 2+ ions onto AlPO 4 were carried out as a function of pH (3–5) and temperature (303–323 K). The extent of sorption was found to increase with an increase in Cu 2+ ion concentration, pH and the temperature of the system. The Kurbatov equation along with a new equation based on...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Hindawi - SAGE Publishing
2005-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263617053737145 |
| Summary: | Sorption studies of Cu 2+ ions onto AlPO 4 were carried out as a function of pH (3–5) and temperature (303–323 K). The extent of sorption was found to increase with an increase in Cu 2+ ion concentration, pH and the temperature of the system. The Kurbatov equation along with a new equation based on the law of mass action were found applicable to the sorption data. The sorption mechanism was found to consist of an exchange between the H + ions from the exchanger and Cu 2+ ions from the aqueous solution. The thermodynamic parameters evaluated showed that the process was endothermic and non-spontaneous in nature. FT-IR spectroscopy was also employed to evaluate the mechanism of Cu 2+ ion sorption. |
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| ISSN: | 0263-6174 2048-4038 |