Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue
In this study, ryegrass straw agricultural residue (<i>Lolium multiflorum</i> L.) was employed as an adsorbent material to remove methylene blue (MB) dye from aqueous solutions. Four adsorbents were produced using phosphoric acid and pyrolysis as activating agents. The samples were analy...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/2311-5629/9/2/44 |
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| author | Elenara Oliveira da Silva Alaor Valério Filho Emanuelle Butato de Araujo Taís Douglas Andrade Maele Costa dos Santos Ricardo Zottis Gabriela Silveira da Rosa André Ricardo Felkl de Almeida |
| author_facet | Elenara Oliveira da Silva Alaor Valério Filho Emanuelle Butato de Araujo Taís Douglas Andrade Maele Costa dos Santos Ricardo Zottis Gabriela Silveira da Rosa André Ricardo Felkl de Almeida |
| author_sort | Elenara Oliveira da Silva |
| collection | DOAJ |
| description | In this study, ryegrass straw agricultural residue (<i>Lolium multiflorum</i> L.) was employed as an adsorbent material to remove methylene blue (MB) dye from aqueous solutions. Four adsorbents were produced using phosphoric acid and pyrolysis as activating agents. The samples were analyzed with TGA, FTIR, SEM, and XRD techniques. A rapid adsorption of the MB was obtained with the ryegrass treated with 40% H<sub>3</sub>PO<sub>4</sub>, reaching equilibrium in 2 min. Moreover, a maximum adsorption capacity of 80.79 mg g<sup>−1</sup> and a removal efficiency of 99% were achieved. The results demonstrate a good performance of adsorbents from ryegrass for removing dye contaminants, such as methylene blue, from the aqueous solutions. |
| first_indexed | 2024-03-09T10:57:03Z |
| format | Article |
| id | doaj.art-342722ec88f94f79af9972e880da66bf |
| institution | Directory Open Access Journal |
| issn | 2311-5629 |
| language | English |
| last_indexed | 2024-03-09T10:57:03Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | C |
| spelling | doaj.art-342722ec88f94f79af9972e880da66bf2023-12-01T01:32:16ZengMDPI AGC2311-56292023-04-01924410.3390/c9020044Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene BlueElenara Oliveira da Silva0Alaor Valério Filho1Emanuelle Butato de Araujo2Taís Douglas Andrade3Maele Costa dos Santos4Ricardo Zottis5Gabriela Silveira da Rosa6André Ricardo Felkl de Almeida7Graduate Program in Engineering, Federal University of Pampa, Alegrete 97546-550, BrazilGraduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas 96010-610, BrazilChemical Engineering, Federal University of Pampa, Bagé 96413-172, BrazilChemical Engineering, Federal University of Pampa, Bagé 96413-172, BrazilChemical Engineering, Federal University of Pampa, Bagé 96413-172, BrazilChemical Engineering, Federal University of Pampa, Bagé 96413-172, BrazilGraduate Program in Engineering, Federal University of Pampa, Alegrete 97546-550, BrazilGraduate Program in Engineering, Federal University of Pampa, Alegrete 97546-550, BrazilIn this study, ryegrass straw agricultural residue (<i>Lolium multiflorum</i> L.) was employed as an adsorbent material to remove methylene blue (MB) dye from aqueous solutions. Four adsorbents were produced using phosphoric acid and pyrolysis as activating agents. The samples were analyzed with TGA, FTIR, SEM, and XRD techniques. A rapid adsorption of the MB was obtained with the ryegrass treated with 40% H<sub>3</sub>PO<sub>4</sub>, reaching equilibrium in 2 min. Moreover, a maximum adsorption capacity of 80.79 mg g<sup>−1</sup> and a removal efficiency of 99% were achieved. The results demonstrate a good performance of adsorbents from ryegrass for removing dye contaminants, such as methylene blue, from the aqueous solutions.https://www.mdpi.com/2311-5629/9/2/44ryegrassmethylene blueagricultural waste |
| spellingShingle | Elenara Oliveira da Silva Alaor Valério Filho Emanuelle Butato de Araujo Taís Douglas Andrade Maele Costa dos Santos Ricardo Zottis Gabriela Silveira da Rosa André Ricardo Felkl de Almeida Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue C ryegrass methylene blue agricultural waste |
| title | Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue |
| title_full | Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue |
| title_fullStr | Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue |
| title_full_unstemmed | Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue |
| title_short | Application of <i>Lolium multiflorum</i> as an Efficient Raw Material in the Production of Adsorbent for Removal of Methylene Blue |
| title_sort | application of i lolium multiflorum i as an efficient raw material in the production of adsorbent for removal of methylene blue |
| topic | ryegrass methylene blue agricultural waste |
| url | https://www.mdpi.com/2311-5629/9/2/44 |
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