Adsorption of cationic dye from water using an iron oxide/activated carbon magnetic composites prepared from sugarcane bagasse by microwave method
In this work, using an agricultural waste of sugarcane bagasse, new biomass of magnetic sugarcane bagasse activated carbon (MSBAC) has been successfully prepared by a simple microwave method. The composition and structure of MSBAC were characterised by SEM, XRD, BET, and FT-IR. It was found that MSB...
| Veröffentlicht in: | Environmental technology. - 1993. - 42(2021), 3 vom: 19. Jan., Seite 337-350 |
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| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2021
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| Zugriff auf das übergeordnete Werk: | Environmental technology |
| Schlagworte: | Journal Article Regenerate Sugarcane bagasse adsorption magnetic microwave Ferric Compounds Water Pollutants, Chemical Water 059QF0KO0R mehr... |
| Zusammenfassung: | In this work, using an agricultural waste of sugarcane bagasse, new biomass of magnetic sugarcane bagasse activated carbon (MSBAC) has been successfully prepared by a simple microwave method. The composition and structure of MSBAC were characterised by SEM, XRD, BET, and FT-IR. It was found that MSBAC was a mesoporous material with a loose structure and rough surface, and it had a high specific surface area. The pHPZC was 4.1, and MSBAC presented a greater amount of acid functional groups than basic groups, making it efficient for adsorption of cationic dye. To study the adsorption ability of MSBAC, methylene blue (MB) was selected as sample pollutant. Effects of pH, MSBAC dosage, initial MB concentration, temperature, time on the adsorption of MB, and the possibility of regeneration of MSBAC were investigated. The adsorption results showed that the maximum adsorption capacity was 36.14 mg·g-1, and the pH had no significant effect on the MB adsorption in the range of 2-10. The equilibrium data fitted Langmuir isotherm, and the adsorption kinetic data obeyed pseudo-second-order kinetic model. The adsorption process involving the surface diffusion and film diffusion. The positive value of ΔH revealed the adsorption behaviour was an endothermic process. The salt concentration had a negative effect on MB removal. MSBAC had a good magnetic separation performance. The used MSBAC could be regenerated by a simple calcination method under the temperature of 300℃ for 30 min |
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| Beschreibung: | Date Completed 28.01.2021 Date Revised 28.01.2021 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1479-487X |
| DOI: | 10.1080/09593330.2019.1627425 |