The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent
In this study, the potential of bone char for Royal Blue Tiafix and Black Tiassolan dyes adsorption from aqueous solutions was evaluated. The adsorbent was characterized physically and chemically by adsorption/desorption of N 2 at 77 K, scanning electron microscopy, X-ray diffraction, and infrared s...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617418759776 |
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| _version_ | 1846097834810540032 |
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| author | Rowander A Moura Araceli A Seolatto Maria E de Oliveira Ferreira Fernanda F Freitas |
| author_facet | Rowander A Moura Araceli A Seolatto Maria E de Oliveira Ferreira Fernanda F Freitas |
| author_sort | Rowander A Moura |
| collection | DOAJ |
| description | In this study, the potential of bone char for Royal Blue Tiafix and Black Tiassolan dyes adsorption from aqueous solutions was evaluated. The adsorbent was characterized physically and chemically by adsorption/desorption of N 2 at 77 K, scanning electron microscopy, X-ray diffraction, and infrared spectroscopy. The equilibrium adsorption results for bone char can be successfully modeled by the Langmuir and Freundlich isotherms. Pseudo-first-order and pseudo-second-order models were used to describe the kinetic data and rate constants were evaluated. Kinetics of each dye was found to follow pseudo-second-order rate kinetic model, with great correlation (higher than 0.99). In order to reduce the number of experiments to achieve better dye removal efficiency, a 2³ full factorial design with three central points and six axial points was applied in the equilibrium experiments. The variables analyzed were agitation, temperature, and pH. |
| format | Article |
| id | doaj-art-88bd01865a68439c8fd0f6200fc9bc6c |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-88bd01865a68439c8fd0f6200fc9bc6c2025-01-02T02:59:04ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-05-013610.1177/0263617418759776The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbentRowander A MouraAraceli A SeolattoMaria E de Oliveira FerreiraFernanda F FreitasIn this study, the potential of bone char for Royal Blue Tiafix and Black Tiassolan dyes adsorption from aqueous solutions was evaluated. The adsorbent was characterized physically and chemically by adsorption/desorption of N 2 at 77 K, scanning electron microscopy, X-ray diffraction, and infrared spectroscopy. The equilibrium adsorption results for bone char can be successfully modeled by the Langmuir and Freundlich isotherms. Pseudo-first-order and pseudo-second-order models were used to describe the kinetic data and rate constants were evaluated. Kinetics of each dye was found to follow pseudo-second-order rate kinetic model, with great correlation (higher than 0.99). In order to reduce the number of experiments to achieve better dye removal efficiency, a 2³ full factorial design with three central points and six axial points was applied in the equilibrium experiments. The variables analyzed were agitation, temperature, and pH.https://doi.org/10.1177/0263617418759776 |
| spellingShingle | Rowander A Moura Araceli A Seolatto Maria E de Oliveira Ferreira Fernanda F Freitas The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent Adsorption Science & Technology |
| title | The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent |
| title_full | The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent |
| title_fullStr | The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent |
| title_full_unstemmed | The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent |
| title_short | The adsorption study of Royal Blue Tiafix and Black Tiassolan dyes using bone char as adsorbent |
| title_sort | adsorption study of royal blue tiafix and black tiassolan dyes using bone char as adsorbent |
| url | https://doi.org/10.1177/0263617418759776 |
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