Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41
MCM-41 includes a group of silica mesopore components with a high surface area whose adsorption capacities can be enhanced by modifying their surface with amine groups. In this study, the modified NH2-MCM-41 was used to investigate adsorption of Cd(II), Ni(II) and Pb(II) ions in a mixture of aqueous...
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| Format: | Article |
| Language: | English |
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Water and Wastewater Consulting Engineers Research Development
2010-03-01
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| Series: | آب و فاضلاب |
| Subjects: | |
| Online Access: | http://www.wwjournal.ir/article_1774_2a2dc90eff9e07f69770fb83322e9c32.pdf |
| _version_ | 1818918180731486208 |
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| author | Aghdas Heidari Habibollah Younesi Zahra Mehraban |
| author_facet | Aghdas Heidari Habibollah Younesi Zahra Mehraban |
| author_sort | Aghdas Heidari |
| collection | DOAJ |
| description | MCM-41 includes a group of silica mesopore components with a high surface area whose adsorption capacities can be enhanced by modifying their surface with amine groups. In this study, the modified NH2-MCM-41 was used to investigate adsorption of Cd(II), Ni(II) and Pb(II) ions in a mixture of aqueous solutions. All the experiments were carried out in a batch system containing a solution of metal ions to study the effects of the initial metal concentration, adsorbent dosage, contact time, and solution pH. The results showed that optimum adsorption would be achieved at pH 5 and that adsorption capacity increased with increasing metal ion concentration but with decreasing adsorbent dosage. Experimental data were fitted with Langmauir and Freundlich models. Maximum adsorption capacities for Ni(II), Cd(II), and Pb(II) were 12.36, 18.25 and 57.74 mg/g, respectively. The results indicate that NH2-MCM-41 is an effective adsorbent for Ni(II), Cd(II) and Pb(II) ions with a high adsorption capacity. |
| first_indexed | 2024-12-20T00:45:52Z |
| format | Article |
| id | doaj.art-ed284cb9149949d7ae9d68b97c9898e3 |
| institution | Directory Open Access Journal |
| issn | 1024-5936 2383-0905 |
| language | English |
| last_indexed | 2024-12-20T00:45:52Z |
| publishDate | 2010-03-01 |
| publisher | Water and Wastewater Consulting Engineers Research Development |
| record_format | Article |
| series | آب و فاضلاب |
| spelling | doaj.art-ed284cb9149949d7ae9d68b97c9898e32022-12-21T19:59:24ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052010-03-0121125331774Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41Aghdas Heidari0Habibollah Younesi1Zahra Mehraban2Ph.D. Student of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modarres Univerisity, Tehran. Assist. Prof. of Environmental Sciences, Faculty of Natural Resources and Marin Sciences, Tarbiat Modarres Uni., TehranAssist. Prof. of Chemistry Dept., New Technology Committee, Research Institute for Curriculum Development and Educational Innovations, TehranMCM-41 includes a group of silica mesopore components with a high surface area whose adsorption capacities can be enhanced by modifying their surface with amine groups. In this study, the modified NH2-MCM-41 was used to investigate adsorption of Cd(II), Ni(II) and Pb(II) ions in a mixture of aqueous solutions. All the experiments were carried out in a batch system containing a solution of metal ions to study the effects of the initial metal concentration, adsorbent dosage, contact time, and solution pH. The results showed that optimum adsorption would be achieved at pH 5 and that adsorption capacity increased with increasing metal ion concentration but with decreasing adsorbent dosage. Experimental data were fitted with Langmauir and Freundlich models. Maximum adsorption capacities for Ni(II), Cd(II), and Pb(II) were 12.36, 18.25 and 57.74 mg/g, respectively. The results indicate that NH2-MCM-41 is an effective adsorbent for Ni(II), Cd(II) and Pb(II) ions with a high adsorption capacity.http://www.wwjournal.ir/article_1774_2a2dc90eff9e07f69770fb83322e9c32.pdfMCM-41NH2-MCM-41Lead(II)Nickel(II)Cadmium(II)AdsorptionIsotherm |
| spellingShingle | Aghdas Heidari Habibollah Younesi Zahra Mehraban Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 آب و فاضلاب MCM-41 NH2-MCM-41 Lead(II) Nickel(II) Cadmium(II) Adsorption Isotherm |
| title | Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 |
| title_full | Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 |
| title_fullStr | Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 |
| title_full_unstemmed | Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 |
| title_short | Removal of Cd(II), Ni(II), and Pb(II) Ions in an Aqueous Solution by Chemically Modified Nanoporous MCM-41 |
| title_sort | removal of cd ii ni ii and pb ii ions in an aqueous solution by chemically modified nanoporous mcm 41 |
| topic | MCM-41 NH2-MCM-41 Lead(II) Nickel(II) Cadmium(II) Adsorption Isotherm |
| url | http://www.wwjournal.ir/article_1774_2a2dc90eff9e07f69770fb83322e9c32.pdf |
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