Polyaza macroligands as potential agents for heavy metal removal from wastewater
Two polyaza macroligands N,N´-bis(2-aminobenzyl)-1,2-ethanediamine (L1) and 3,6,9,12-tetraaza-4(1,2),11(1,2)-dibenzo-1(1,3)-pyridinacyclotridecaphane (L2) were characterized and investigated for their metal ion extraction capabilities. The nature of all complexes was established by spectroscopic tec...
| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2013
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| Acceso en línea: | http://eprints.uanl.mx/14804/1/518.pdf |
| _version_ | 1824414146653847552 |
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| author | Elizondo Martínez, Perla Nájera Martínez, Blanca Pérez Rodríguez, Nancy Reyes Hinojosa, Laura Gómez del Río, Isabel |
| author_facet | Elizondo Martínez, Perla Nájera Martínez, Blanca Pérez Rodríguez, Nancy Reyes Hinojosa, Laura Gómez del Río, Isabel |
| author_sort | Elizondo Martínez, Perla |
| collection | Repositorio Institucional |
| description | Two polyaza macroligands N,N´-bis(2-aminobenzyl)-1,2-ethanediamine (L1) and 3,6,9,12-tetraaza-4(1,2),11(1,2)-dibenzo-1(1,3)-pyridinacyclotridecaphane (L2) were characterized and investigated for their metal ion extraction capabilities. The nature of all complexes was established by spectroscopic techniques. The equilibrium constants were determined by spectrophotometric and potentiometric techniques and the residual concentration of metals in the solutions by atomic absorption spectrometry (AAS). The capacity of the ligands to remove heavy metals such as Cu(II), Ni(II), Cd(II), Zn(II) and Pb(II) as insoluble complexes was evaluated in wastewater from industrial effluents. These agents showed high affinity for the studied metals. The values of the equilibrium constants of the isolated complexes (between 1×104 and 2×107) demonstrated the feasibility of applying these chelating agents as alternatives for the removal of heavy metals from industrial effluents. |
| format | Article |
| id | eprints-14804 |
| institution | UANL |
| language | English |
| publishDate | 2013 |
| record_format | eprints |
| spelling | eprints-148042024-03-05T16:56:29Z http://eprints.uanl.mx/14804/ Polyaza macroligands as potential agents for heavy metal removal from wastewater Elizondo Martínez, Perla Nájera Martínez, Blanca Pérez Rodríguez, Nancy Reyes Hinojosa, Laura Gómez del Río, Isabel Two polyaza macroligands N,N´-bis(2-aminobenzyl)-1,2-ethanediamine (L1) and 3,6,9,12-tetraaza-4(1,2),11(1,2)-dibenzo-1(1,3)-pyridinacyclotridecaphane (L2) were characterized and investigated for their metal ion extraction capabilities. The nature of all complexes was established by spectroscopic techniques. The equilibrium constants were determined by spectrophotometric and potentiometric techniques and the residual concentration of metals in the solutions by atomic absorption spectrometry (AAS). The capacity of the ligands to remove heavy metals such as Cu(II), Ni(II), Cd(II), Zn(II) and Pb(II) as insoluble complexes was evaluated in wastewater from industrial effluents. These agents showed high affinity for the studied metals. The values of the equilibrium constants of the isolated complexes (between 1×104 and 2×107) demonstrated the feasibility of applying these chelating agents as alternatives for the removal of heavy metals from industrial effluents. 2013 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/14804/1/518.pdf http://eprints.uanl.mx/14804/1.haspreviewThumbnailVersion/518.pdf Elizondo Martínez, Perla y Nájera Martínez, Blanca y Pérez Rodríguez, Nancy y Reyes Hinojosa, Laura y Gómez del Río, Isabel (2013) Polyaza macroligands as potential agents for heavy metal removal from wastewater. Journal of the Serbian Chemical Society, 78 (4). pp. 591-602. ISSN 0352-5139 http://doi.org/10.2298/JSC120228050E doi:10.2298/JSC120228050E |
| spellingShingle | Elizondo Martínez, Perla Nájera Martínez, Blanca Pérez Rodríguez, Nancy Reyes Hinojosa, Laura Gómez del Río, Isabel Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| title_full | Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| title_fullStr | Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| title_full_unstemmed | Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| title_short | Polyaza macroligands as potential agents for heavy metal removal from wastewater |
| title_sort | polyaza macroligands as potential agents for heavy metal removal from wastewater |
| url | http://eprints.uanl.mx/14804/1/518.pdf |
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