Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves
Carbon prepared from leaves of henna (Lawsonia inermis) was used to study the adsorption of Cr(VI) and Cu(II) ions from their aqueous solutions. The experimental conditions which include pH, contact time, initial concentration, and adsorbent dosage on the metal removal were investigated. The capacit...
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/304970 |
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| author | T. Shanthi V. M. Selvarajan |
| author_facet | T. Shanthi V. M. Selvarajan |
| author_sort | T. Shanthi |
| collection | DOAJ |
| description | Carbon prepared from leaves of henna (Lawsonia inermis) was used to study the adsorption of Cr(VI) and Cu(II) ions from their aqueous solutions. The experimental conditions which include pH, contact time, initial concentration, and adsorbent dosage on the metal removal were investigated. The capacity of adsorption depends on pH value; it increases with an increase in pH value from 1 to 7 and then decreases. The highest percentage of metal removal was achieved in the adsorbent dosage of 0.7 g and at an initial concentration of 100 ppm metal ion. The adsorption isotherm studies revealed that data was confirmed with both the Langmuir and Freundlich isotherm models. The removal percentage was found to be higher for Cu(II) when compared with Cr(VI). The potential of carbon prepared from henna leaves for the removal of these two solutions containing heavy metals was substantiated. |
| format | Article |
| id | doaj-art-b4affae8bd0b4ccc832c35c34d7c0fcf |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-b4affae8bd0b4ccc832c35c34d7c0fcf2025-02-03T01:30:04ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/304970304970Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna LeavesT. Shanthi0V. M. Selvarajan1Department of Chemistry, VMKV Engineering College, Salem, IndiaDepartment of Chemistry, Annapoorna Engineering College, Salem, IndiaCarbon prepared from leaves of henna (Lawsonia inermis) was used to study the adsorption of Cr(VI) and Cu(II) ions from their aqueous solutions. The experimental conditions which include pH, contact time, initial concentration, and adsorbent dosage on the metal removal were investigated. The capacity of adsorption depends on pH value; it increases with an increase in pH value from 1 to 7 and then decreases. The highest percentage of metal removal was achieved in the adsorbent dosage of 0.7 g and at an initial concentration of 100 ppm metal ion. The adsorption isotherm studies revealed that data was confirmed with both the Langmuir and Freundlich isotherm models. The removal percentage was found to be higher for Cu(II) when compared with Cr(VI). The potential of carbon prepared from henna leaves for the removal of these two solutions containing heavy metals was substantiated.http://dx.doi.org/10.1155/2013/304970 |
| spellingShingle | T. Shanthi V. M. Selvarajan Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves Journal of Chemistry |
| title | Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves |
| title_full | Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves |
| title_fullStr | Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves |
| title_full_unstemmed | Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves |
| title_short | Removal of Cr(VI) and Cu(II) Ions from Aqueous Solution by Carbon Prepared from Henna Leaves |
| title_sort | removal of cr vi and cu ii ions from aqueous solution by carbon prepared from henna leaves |
| url | http://dx.doi.org/10.1155/2013/304970 |
| work_keys_str_mv | AT tshanthi removalofcrviandcuiiionsfromaqueoussolutionbycarbonpreparedfromhennaleaves AT vmselvarajan removalofcrviandcuiiionsfromaqueoussolutionbycarbonpreparedfromhennaleaves |