A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits
Date-pits (an agricultural by-product available commercially) were utilized, with and without activation, as an adsorbent for the removal of Zn 2+ and Cu 2+ ions from aqueous solutions. Activated carbons were prepared from date-pits by carbon dioxide activation at 700°C. The effects of contact time,...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2002-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/02636170260295515 |
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| author | Fawzi Banat Sameer Al-Asheh Deaa Al-Rousan |
| author_facet | Fawzi Banat Sameer Al-Asheh Deaa Al-Rousan |
| author_sort | Fawzi Banat |
| collection | DOAJ |
| description | Date-pits (an agricultural by-product available commercially) were utilized, with and without activation, as an adsorbent for the removal of Zn 2+ and Cu 2+ ions from aqueous solutions. Activated carbons were prepared from date-pits by carbon dioxide activation at 700°C. The effects of contact time, pH, temperature and the adsorbent concentration on the removal of Zn 2+ and Cu 2+ ions were studied. The Freundlich isotherm model described the equilibrium adsorption data. Non-activated date-pits exhibited higher Zn 2+ and Cu 2+ ion uptake than activated date-pits. The uptake of Cu 2+ ions by both activated and non-activated date-pits was higher than the uptake of Zn 2+ ions. The uptake of both metal ions increased on increasing the pH value of the system from 3.5 to 5.0 as well as on decreasing the temperature from 50°C to 25°C. Adsorption capacities for the non-activated date-pits towards Cu 2+ and Zn 2+ ions as high as 0.15 mmol/g and 0.09 mmol/g, respectively, were observed. This study demonstrated that date-pits without any physical or chemical pretreatment could be used as an effective adsorbent for the treatment of waters containing heavy metal ions such as Zn 2+ and Cu 2+ . |
| format | Article |
| id | doaj-art-11d09e2c38da4a78bc87b7dc2fdfc372 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2002-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-11d09e2c38da4a78bc87b7dc2fdfc3722025-01-02T22:37:31ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382002-05-012010.1260/02636170260295515A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pitsFawzi BanatSameer Al-AshehDeaa Al-RousanDate-pits (an agricultural by-product available commercially) were utilized, with and without activation, as an adsorbent for the removal of Zn 2+ and Cu 2+ ions from aqueous solutions. Activated carbons were prepared from date-pits by carbon dioxide activation at 700°C. The effects of contact time, pH, temperature and the adsorbent concentration on the removal of Zn 2+ and Cu 2+ ions were studied. The Freundlich isotherm model described the equilibrium adsorption data. Non-activated date-pits exhibited higher Zn 2+ and Cu 2+ ion uptake than activated date-pits. The uptake of Cu 2+ ions by both activated and non-activated date-pits was higher than the uptake of Zn 2+ ions. The uptake of both metal ions increased on increasing the pH value of the system from 3.5 to 5.0 as well as on decreasing the temperature from 50°C to 25°C. Adsorption capacities for the non-activated date-pits towards Cu 2+ and Zn 2+ ions as high as 0.15 mmol/g and 0.09 mmol/g, respectively, were observed. This study demonstrated that date-pits without any physical or chemical pretreatment could be used as an effective adsorbent for the treatment of waters containing heavy metal ions such as Zn 2+ and Cu 2+ .https://doi.org/10.1260/02636170260295515 |
| spellingShingle | Fawzi Banat Sameer Al-Asheh Deaa Al-Rousan A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits Adsorption Science & Technology |
| title | A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits |
| title_full | A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits |
| title_fullStr | A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits |
| title_full_unstemmed | A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits |
| title_short | A Comparative Study of Copper and Zinc Ion Adsorption on to Activated and Non-activated Date-pits |
| title_sort | comparative study of copper and zinc ion adsorption on to activated and non activated date pits |
| url | https://doi.org/10.1260/02636170260295515 |
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