Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina
In this study the use of nano structured γ-alumina as a new and convince adsorbent for removal of cadmium ions from aqueous solution was investigated. The equilibrium adsorption level was determined as a function of the solution pH, temperature, contact time, initial adsorbate concentration and adso...
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| Format: | Article |
| Language: | English |
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Water and Wastewater Consulting Engineers Research Development
2012-01-01
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| Series: | آب و فاضلاب |
| Subjects: | |
| Online Access: | http://www.wwjournal.ir/article_727_05b4b4dc33ae4dc650212bbfa3f0312c.pdf |
| _version_ | 1819175068420276224 |
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| author | Seyed Hassan Zavar Mousavi Mostafa Fazli Akram Rahmani |
| author_facet | Seyed Hassan Zavar Mousavi Mostafa Fazli Akram Rahmani |
| author_sort | Seyed Hassan Zavar Mousavi |
| collection | DOAJ |
| description | In this study the use of nano structured γ-alumina as a new and convince adsorbent for removal of cadmium ions from aqueous solution was investigated. The equilibrium adsorption level was determined as a function of the solution pH, temperature, contact time, initial adsorbate concentration and adsorbent doses. Adsorption isotherms of Cd(II) on adsorbents were determined and correlated with common isotherm equations such as Langmuir, Freundlich and Tempkin models. The isotherm data fitted well to the Langmuir isotherm. The maximum adsorption capacity for Cd(II) on nano structured γ-alumina was 76.92 mg g-1. The adsorption kinetics was investigated and the best fit was achieved by a second-order equation. The thermodynamic parameters such as free energy (ΔG0), enthalpy (ΔH0) and entropy changes (ΔS0) for the adsorption of Cd(II) were computed to predict the nature of adsorption process. |
| first_indexed | 2024-12-22T20:48:59Z |
| format | Article |
| id | doaj.art-406ddf50a3b54722a2463b2503dfa621 |
| institution | Directory Open Access Journal |
| issn | 1024-5936 2383-0905 |
| language | English |
| last_indexed | 2024-12-22T20:48:59Z |
| publishDate | 2012-01-01 |
| publisher | Water and Wastewater Consulting Engineers Research Development |
| record_format | Article |
| series | آب و فاضلاب |
| spelling | doaj.art-406ddf50a3b54722a2463b2503dfa6212022-12-21T18:13:08ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052012-01-01224920727Removal of Cadmium from Aqueous Solution by Nano Structured γ-AluminaSeyed Hassan Zavar Mousavi0Mostafa Fazli1Akram Rahmani2Assoc. Prof. of Chemistry, Faculty of Sciences, Semnan University, SemnanAssoc. Prof. of Chemistry, Faculty of Sciences, Semnan University, SemnanM.Sc. Student of Applied Chemistry, Faculty of Sciences, Semnan University, SemnanIn this study the use of nano structured γ-alumina as a new and convince adsorbent for removal of cadmium ions from aqueous solution was investigated. The equilibrium adsorption level was determined as a function of the solution pH, temperature, contact time, initial adsorbate concentration and adsorbent doses. Adsorption isotherms of Cd(II) on adsorbents were determined and correlated with common isotherm equations such as Langmuir, Freundlich and Tempkin models. The isotherm data fitted well to the Langmuir isotherm. The maximum adsorption capacity for Cd(II) on nano structured γ-alumina was 76.92 mg g-1. The adsorption kinetics was investigated and the best fit was achieved by a second-order equation. The thermodynamic parameters such as free energy (ΔG0), enthalpy (ΔH0) and entropy changes (ΔS0) for the adsorption of Cd(II) were computed to predict the nature of adsorption process.http://www.wwjournal.ir/article_727_05b4b4dc33ae4dc650212bbfa3f0312c.pdfRemovalcadmiumNano Structured AluminaAdsorptionIsothermKinetic |
| spellingShingle | Seyed Hassan Zavar Mousavi Mostafa Fazli Akram Rahmani Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina آب و فاضلاب Removal cadmium Nano Structured Alumina Adsorption Isotherm Kinetic |
| title | Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina |
| title_full | Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina |
| title_fullStr | Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina |
| title_full_unstemmed | Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina |
| title_short | Removal of Cadmium from Aqueous Solution by Nano Structured γ-Alumina |
| title_sort | removal of cadmium from aqueous solution by nano structured γ alumina |
| topic | Removal cadmium Nano Structured Alumina Adsorption Isotherm Kinetic |
| url | http://www.wwjournal.ir/article_727_05b4b4dc33ae4dc650212bbfa3f0312c.pdf |
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