Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium
This work addresses the synthesis of titanium pyrophosphate, as well as the characterization and evaluation of the sorption process of europium, for removal of trivalent heavy metals and actinides simulate. The evaluation of the surface properties of titanium pyrophosphate was carried out determinin...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2017/2675897 |
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| author | Huemantzin Balan Ortiz-Oliveros Rosa María Flores-Espinosa Eduardo Ordoñez-Regil Suilma Marisela Fernández-Valverde |
| author_facet | Huemantzin Balan Ortiz-Oliveros Rosa María Flores-Espinosa Eduardo Ordoñez-Regil Suilma Marisela Fernández-Valverde |
| author_sort | Huemantzin Balan Ortiz-Oliveros |
| collection | DOAJ |
| description | This work addresses the synthesis of titanium pyrophosphate, as well as the characterization and evaluation of the sorption process of europium, for removal of trivalent heavy metals and actinides simulate. The evaluation of the surface properties of titanium pyrophosphate was carried out determining the surface roughness and surface acidity constants. The values obtained from the determination of the surface roughness of the synthesized solid indicate that the surface of the material presents itself as slightly smooth. The FITEQL program was used to fit the experimental titration curves to obtain the surface acidity constants: logK+=3.59±0.06 and logK-=-3.90±0.05. The results of sorption kinetics evidenced that the pseudo-order model explains the retention process of europium, in which the initial sorption velocity was 8.3 × 10−4 mg g−1 min−1 and kinetic constant was 1.8 × 10−3 g mg min−1. The maximum sorption capacity was 0.6 mg g−1. The results obtained from sorption edge showed the existence of two bidentate complexes on the surface. |
| format | Article |
| id | doaj-art-baba62e45026454283877db87698eded |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-baba62e45026454283877db87698eded2025-02-03T01:31:29ZengWileyThe Scientific World Journal2356-61401537-744X2017-01-01201710.1155/2017/26758972675897Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of EuropiumHuemantzin Balan Ortiz-Oliveros0Rosa María Flores-Espinosa1Eduardo Ordoñez-Regil2Suilma Marisela Fernández-Valverde3Dirección de Investigación Tecnológica, Instituto Nacional de Investigaciones Nucleares, A. P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, CP 11801, Ciudad de México, MexicoDirección de Investigación Científica, Instituto Nacional de Investigaciones Nucleares, A. P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, CP 11801, Ciudad de México, MexicoDirección de Investigación Científica, Instituto Nacional de Investigaciones Nucleares, A. P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, CP 11801, Ciudad de México, MexicoDirección de Investigación Científica, Instituto Nacional de Investigaciones Nucleares, A. P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, CP 11801, Ciudad de México, MexicoThis work addresses the synthesis of titanium pyrophosphate, as well as the characterization and evaluation of the sorption process of europium, for removal of trivalent heavy metals and actinides simulate. The evaluation of the surface properties of titanium pyrophosphate was carried out determining the surface roughness and surface acidity constants. The values obtained from the determination of the surface roughness of the synthesized solid indicate that the surface of the material presents itself as slightly smooth. The FITEQL program was used to fit the experimental titration curves to obtain the surface acidity constants: logK+=3.59±0.06 and logK-=-3.90±0.05. The results of sorption kinetics evidenced that the pseudo-order model explains the retention process of europium, in which the initial sorption velocity was 8.3 × 10−4 mg g−1 min−1 and kinetic constant was 1.8 × 10−3 g mg min−1. The maximum sorption capacity was 0.6 mg g−1. The results obtained from sorption edge showed the existence of two bidentate complexes on the surface.http://dx.doi.org/10.1155/2017/2675897 |
| spellingShingle | Huemantzin Balan Ortiz-Oliveros Rosa María Flores-Espinosa Eduardo Ordoñez-Regil Suilma Marisela Fernández-Valverde Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium The Scientific World Journal |
| title | Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium |
| title_full | Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium |
| title_fullStr | Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium |
| title_full_unstemmed | Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium |
| title_short | Titanium Pyrophosphate for Removal of Trivalent Heavy Metals and Actinides Simulated by Retention of Europium |
| title_sort | titanium pyrophosphate for removal of trivalent heavy metals and actinides simulated by retention of europium |
| url | http://dx.doi.org/10.1155/2017/2675897 |
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