Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin
A micaceous mineral (MicaM) available locally in Kenya was utilized as an inexpensive and effective adsorbent for the removal of Cu 2+ ions from aqueous solution. The effects of contact time, pH, temperature, adsorbate and adsorbent concentrations, and the concentration of electrolyte on the removal...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2003-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361703322404412 |
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| author | Stephen Attahiru Paul M. Shiundu John M. Onyari Eliud M. Mathu |
| author_facet | Stephen Attahiru Paul M. Shiundu John M. Onyari Eliud M. Mathu |
| author_sort | Stephen Attahiru |
| collection | DOAJ |
| description | A micaceous mineral (MicaM) available locally in Kenya was utilized as an inexpensive and effective adsorbent for the removal of Cu 2+ ions from aqueous solution. The effects of contact time, pH, temperature, adsorbate and adsorbent concentrations, and the concentration of electrolyte on the removal of Cu 2+ ions were studied. Maximum removal of Cu 2+ ions occurred over the pH range 4.0–7.0. The adsorption of Cu 2+ ions increased with an increase in the dose ratio of mineral to Cu 2+ ion concentration and decreased with adsorbent particle size. Isotherm analysis of the adsorption data obtained at 25°C showed that the adsorption of Cu 2+ ions on MicaM followed both the Langmuir and Freundlich isotherms. The uptake of Cu 2+ ions increased on increasing the pH of the solution from 1.5 to 7.0 as well as on increasing the temperature from 25°C to 60°C. An adsorption capacity of 0.850 g/g was achieved for MicaM towards the Cu 2+ ion. This study has demonstrated that locally abundant micaceous mineral can be used as an effective adsorbent for the treatment of waters containing Cu 2+ ions without any prior chemical pretreatment. |
| format | Article |
| id | doaj-art-c82f318c0abc4fdebe07f3622f6d2eef |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2003-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-c82f318c0abc4fdebe07f3622f6d2eef2025-02-03T10:08:00ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382003-04-012110.1260/026361703322404412Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan OriginStephen Attahiru0Paul M. Shiundu1John M. Onyari2Eliud M. Mathu3 Department of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi, Kenya Department of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi, Kenya Department of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi, Kenya Department of Geology, University of Nairobi, P.O. Box 30197, Nairobi, KenyaA micaceous mineral (MicaM) available locally in Kenya was utilized as an inexpensive and effective adsorbent for the removal of Cu 2+ ions from aqueous solution. The effects of contact time, pH, temperature, adsorbate and adsorbent concentrations, and the concentration of electrolyte on the removal of Cu 2+ ions were studied. Maximum removal of Cu 2+ ions occurred over the pH range 4.0–7.0. The adsorption of Cu 2+ ions increased with an increase in the dose ratio of mineral to Cu 2+ ion concentration and decreased with adsorbent particle size. Isotherm analysis of the adsorption data obtained at 25°C showed that the adsorption of Cu 2+ ions on MicaM followed both the Langmuir and Freundlich isotherms. The uptake of Cu 2+ ions increased on increasing the pH of the solution from 1.5 to 7.0 as well as on increasing the temperature from 25°C to 60°C. An adsorption capacity of 0.850 g/g was achieved for MicaM towards the Cu 2+ ion. This study has demonstrated that locally abundant micaceous mineral can be used as an effective adsorbent for the treatment of waters containing Cu 2+ ions without any prior chemical pretreatment.https://doi.org/10.1260/026361703322404412 |
| spellingShingle | Stephen Attahiru Paul M. Shiundu John M. Onyari Eliud M. Mathu Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin Adsorption Science & Technology |
| title | Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin |
| title_full | Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin |
| title_fullStr | Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin |
| title_full_unstemmed | Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin |
| title_short | Removal of Cu(II) from Aqueous Solution Using a Micaceous Mineral of Kenyan Origin |
| title_sort | removal of cu ii from aqueous solution using a micaceous mineral of kenyan origin |
| url | https://doi.org/10.1260/026361703322404412 |
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