Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite
Glyphosate is a widely used herbicide, however, its detection in water is an environmental problem due to its character as an emerging pollutant. The advanced oxidation processes - AOP are used for its degradation on materials modified with iron. In this study, the adsorption and catalytic degrad...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2023
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13806 |
| _version_ | 1801706352167354368 |
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| author | cruz vera, yeyzon Javier Montañez Velásquez, Ana María Ruiz Bravo, Lisette Dyanna Pazos Zarama, Mery Carolina |
| author_facet | cruz vera, yeyzon Javier Montañez Velásquez, Ana María Ruiz Bravo, Lisette Dyanna Pazos Zarama, Mery Carolina |
| author_sort | cruz vera, yeyzon Javier |
| collection | OJS |
| description |
Glyphosate is a widely used herbicide, however, its detection in water is an environmental problem due to its character as an emerging pollutant. The advanced oxidation processes - AOP are used for its degradation on materials modified with iron. In this study, the adsorption and catalytic degradation capacity of glyphosate was evaluated using bentonite and kaolinite impregnated with iron. The impregnated materials were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy (SEM), to determine structural changes, monitoring of incorporated iron content, and morphological changes, respectively. Subsequently, adsorption tests were carried out using aqueous glyphosate solutions in a concentration range between 12-27 mg/L of glyphosate, using UV-Vis spectroscopy for their quantification, the results showed that both bentonites and kaolinites impregnated with iron reached up to 55 % adsorption of the herbicide. Analysis by FT-IR showed that the impregnated bentonites after the adsorption process exhibit chemical interactions with the herbicide. The catalytic tests revealed that the materials used in this work and under the tested measurement conditions present a degradation percentage of up to 34%.
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| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-13806 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2023 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-138062024-03-25T03:53:58Z Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite Evaluación de los procesos de adsorción del glifosato en disoluciones acuosas utilizando bentonita y caolinita impregnadas con Fe(III) cruz vera, yeyzon Javier Montañez Velásquez, Ana María Ruiz Bravo, Lisette Dyanna Pazos Zarama, Mery Carolina Adsorción Degradación Glifosato Impregnación con Fe(III) Adsorption, Degradation, Glyphosate, Fe(III)-Impregnation Glyphosate is a widely used herbicide, however, its detection in water is an environmental problem due to its character as an emerging pollutant. The advanced oxidation processes - AOP are used for its degradation on materials modified with iron. In this study, the adsorption and catalytic degradation capacity of glyphosate was evaluated using bentonite and kaolinite impregnated with iron. The impregnated materials were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy (SEM), to determine structural changes, monitoring of incorporated iron content, and morphological changes, respectively. Subsequently, adsorption tests were carried out using aqueous glyphosate solutions in a concentration range between 12-27 mg/L of glyphosate, using UV-Vis spectroscopy for their quantification, the results showed that both bentonites and kaolinites impregnated with iron reached up to 55 % adsorption of the herbicide. Analysis by FT-IR showed that the impregnated bentonites after the adsorption process exhibit chemical interactions with the herbicide. The catalytic tests revealed that the materials used in this work and under the tested measurement conditions present a degradation percentage of up to 34%. El glifosato es un herbicida muy utilizado, sin embargo, su detección en agua es un problema ambiental debido a su carácter como contaminante emergente. Para su degradación se utilizan procesos de oxidación avanzada-POA sobre materiales modificados con hierro. En este estudio se evaluó la capacidad de adsorción y degradación catalítica del glifosato utilizando bentonita y caolinita impregnadas con hierro. Los materiales impregnados se caracterizaron mediante Difracción de Rayos X (DRX), Fluorescencia de Rayos X (FRX) y Microscopía Electrónica de Barrido (MEB), para determinar cambios estructurales, hacer un seguimiento al contenido de hierro incorporado y cambios morfológicos, respectivamente. Posteriormente, se realizaron pruebas de adsorción utilizando disoluciones acuosas de glifosato en un rango de concentraciones entre 12-27 mg/L de glifosato, utilizando espectroscopía UV-Vis para su cuantificación, los resultados demostraron que tanto las bentonitas como las caolinitas impregnadas con hierro alcanzaron hasta el 55% de adsorción del herbicida. El análisis por FT-IR demostró que las bentonitas impregnadas después del proceso de adsorción presentan interacciones químicas con el herbicida. Las pruebas catalíticas revelaron que los materiales utilizados en este trabajo y bajo las condiciones de medida probadas presentan un porcentaje de degradación de hasta el 34 %. Universidad Pedagógica y Tecnológica de Colombia 2023-03-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13806 10.19053/01217488.v14.n1.2023.13806 Ciencia En Desarrollo; Vol. 14 No. 1 (2023): Vol 14, Núm.1 (2023): Enero-Junio; 87-97 Ciencia en Desarrollo; Vol. 14 Núm. 1 (2023): Vol 14, Núm.1 (2023): Enero-Junio; 87-97 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13806/13486 |
| spellingShingle | Adsorción Degradación Glifosato Impregnación con Fe(III) Adsorption, Degradation, Glyphosate, Fe(III)-Impregnation cruz vera, yeyzon Javier Montañez Velásquez, Ana María Ruiz Bravo, Lisette Dyanna Pazos Zarama, Mery Carolina Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title | Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title_alt | Evaluación de los procesos de adsorción del glifosato en disoluciones acuosas utilizando bentonita y caolinita impregnadas con Fe(III) |
| title_full | Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title_fullStr | Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title_full_unstemmed | Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title_short | Evaluation of Glyphosate Adsorption Process in Aqueous Solutions on Fe(III) - Impregnated Bentonite and Kaolinite |
| title_sort | evaluation of glyphosate adsorption process in aqueous solutions on fe iii impregnated bentonite and kaolinite |
| topic | Adsorción Degradación Glifosato Impregnación con Fe(III) Adsorption, Degradation, Glyphosate, Fe(III)-Impregnation |
| topic_facet | Adsorción Degradación Glifosato Impregnación con Fe(III) Adsorption, Degradation, Glyphosate, Fe(III)-Impregnation |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13806 |
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