Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles
This work evaluates the effects of different concentrations of Hibiscus sabdariffa flower (Jamaica) extracts on the green synthesis of zinc oxide (ZnO), for the photocatalytic degradation of methylene blue (MB). Zinc nitrate is used for the synthesis of ZnO as a source of the zinc ions. Extracts of...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-12-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221137971932738X |
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| author | C.A. Soto-Robles P.A. Luque C.M. Gómez-Gutiérrez O. Nava A.R. Vilchis-Nestor E. Lugo-Medina R. Ranjithkumar A. Castro-Beltrán |
| author_facet | C.A. Soto-Robles P.A. Luque C.M. Gómez-Gutiérrez O. Nava A.R. Vilchis-Nestor E. Lugo-Medina R. Ranjithkumar A. Castro-Beltrán |
| author_sort | C.A. Soto-Robles |
| collection | DOAJ |
| description | This work evaluates the effects of different concentrations of Hibiscus sabdariffa flower (Jamaica) extracts on the green synthesis of zinc oxide (ZnO), for the photocatalytic degradation of methylene blue (MB). Zinc nitrate is used for the synthesis of ZnO as a source of the zinc ions. Extracts of 1%, 4% and 8% (% weight-volume) of Hibiscus sabdariffa, in an aqueous medium, were used as reducing and stabilizing agents. In FTIR characterization, the ZnO bond was observed at 618 cm−1. By means of XRD, the material was observed to have a hexagonal crystalline phase (Wurzite). Through XPS, the energy values of 1022 eV for Zn and 531 eV for O were observed, showing the chemical state of Zn+2. The morphology of the ZnO nanoparticles (NPs) varies in its semicircular shape and size distributions depending on the extract used, which range from 30 to 8 nm. The values of the band gap decreased from 2.96 to 2.77 eV as the concentration of extract increased. These materials presented good photocatalytic activity, degrading 97% of MB in 150 min, which are efficient results comparable to ZnO NPs green synthesized via other extracts and other methods. Keywords: Methylene blue, Green synthesis of nanoparticles, Photocatalysis, Hibiscus sabdariffa, ZnO |
| first_indexed | 2024-12-22T19:57:37Z |
| format | Article |
| id | doaj.art-a2e54aea67e148008b5e0c9e2958da96 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-22T19:57:37Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-a2e54aea67e148008b5e0c9e2958da962022-12-21T18:14:23ZengElsevierResults in Physics2211-37972019-12-0115Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticlesC.A. Soto-Robles0P.A. Luque1C.M. Gómez-Gutiérrez2O. Nava3A.R. Vilchis-Nestor4E. Lugo-Medina5R. Ranjithkumar6A. Castro-Beltrán7Facultad de Ingeniería, Arquitectura y Diseño-Universidad Autónoma de Baja California, C.P. 22860 Ensenada, BC, MexicoFacultad de Ingeniería, Arquitectura y Diseño-Universidad Autónoma de Baja California, C.P. 22860 Ensenada, BC, Mexico; Corresponding author.Facultad de Ingeniería, Arquitectura y Diseño-Universidad Autónoma de Baja California, C.P. 22860 Ensenada, BC, MexicoFacultad de Ingeniería, Arquitectura y Diseño-Universidad Autónoma de Baja California, C.P. 22860 Ensenada, BC, MexicoCentro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Toluca, MexicoTecnológico Nacional de México-IT de Los Mochis, Los Mochis, Sinaloa, MexicoDepartment of Biotechnology, Kongunadu Arts and Science College, Coimbatore 641029, Tamilnadu, IndiaFacultad de Ingeniería Mochis, UAS, CP 81223 Los Mochis, Sinaloa, MexicoThis work evaluates the effects of different concentrations of Hibiscus sabdariffa flower (Jamaica) extracts on the green synthesis of zinc oxide (ZnO), for the photocatalytic degradation of methylene blue (MB). Zinc nitrate is used for the synthesis of ZnO as a source of the zinc ions. Extracts of 1%, 4% and 8% (% weight-volume) of Hibiscus sabdariffa, in an aqueous medium, were used as reducing and stabilizing agents. In FTIR characterization, the ZnO bond was observed at 618 cm−1. By means of XRD, the material was observed to have a hexagonal crystalline phase (Wurzite). Through XPS, the energy values of 1022 eV for Zn and 531 eV for O were observed, showing the chemical state of Zn+2. The morphology of the ZnO nanoparticles (NPs) varies in its semicircular shape and size distributions depending on the extract used, which range from 30 to 8 nm. The values of the band gap decreased from 2.96 to 2.77 eV as the concentration of extract increased. These materials presented good photocatalytic activity, degrading 97% of MB in 150 min, which are efficient results comparable to ZnO NPs green synthesized via other extracts and other methods. Keywords: Methylene blue, Green synthesis of nanoparticles, Photocatalysis, Hibiscus sabdariffa, ZnOhttp://www.sciencedirect.com/science/article/pii/S221137971932738X |
| spellingShingle | C.A. Soto-Robles P.A. Luque C.M. Gómez-Gutiérrez O. Nava A.R. Vilchis-Nestor E. Lugo-Medina R. Ranjithkumar A. Castro-Beltrán Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles Results in Physics |
| title | Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles |
| title_full | Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles |
| title_fullStr | Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles |
| title_full_unstemmed | Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles |
| title_short | Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles |
| title_sort | study on the effect of the concentration of hibiscus sabdariffa extract on the green synthesis of zno nanoparticles |
| url | http://www.sciencedirect.com/science/article/pii/S221137971932738X |
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