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Competitive biosorption of Ni (II) and Cu (II) ions from aqueous solutions onto chemically prepared carbon from Acacia nilotica
| Content Provider | Semantic Scholar |
|---|---|
| Author | Priya, M. Krishna Santhi, Thirumalaisamy |
| Copyright Year | 2014 |
| Abstract | The application of chemically activated (Phosphoric ) Acacia nilotica leaves (PAN) for the removal of h eavy metals Cu (II) and Ni (II) metal ions from aqueous solutio n was studied in a batch mode system. Adsorption of Ni (II) is more effective than adsorption of Cu (II) from aque ous solution by using PAN. PAN was characterized by using FTIR, SEM and XRD. Equilibrium, sorption, isotherms and kinetics are investigated. The effect of initial pH, contact time, initial metal concentration and adsorption do sage of Cu (II) and Ni (II) onto PAN have been inve stigated. The Langmuir and Freundlich adsorption models were appl ied to describe the isotherms and isotherm constant s. Adsorption isothermal data could be well interprete d by the Langmuir model. The rate of adsorption was found to be confirmed by pseudo-second-order kinetics with acorrelation of R 2 value [Ni (II) 0.988 and Cr (II) 0.971]. Desorption studies of metals using PAN also was con ducted. These results suggest that Acacia nilotica leaves have a low-cost adsorbent potential for the heavy metal removal from waste water. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.jocpr.com/articles/competitive-biosorption-of-ni-ii-and-cu-ii-ions-from-aqueous-solutionsonto-chemically-prepared-carbon-from-acacia-niloti.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
