Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories
Educational and research laboratories often produce relatively small amounts of highly diverse organic wastes. Treating waste can contribute significantly to the cost of running laboratories. This study introduced a simple and economical waste management system such that readily available used chrom...
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MDPI AG
2022-06-01
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| Online Access: | https://www.mdpi.com/2297-8739/9/6/144 |
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| author | Anifat Adenike Bankole Vijo Poulose Tholkappiyan Ramachandran Fathalla Hamed Thies Thiemann |
| author_facet | Anifat Adenike Bankole Vijo Poulose Tholkappiyan Ramachandran Fathalla Hamed Thies Thiemann |
| author_sort | Anifat Adenike Bankole |
| collection | DOAJ |
| description | Educational and research laboratories often produce relatively small amounts of highly diverse organic wastes. Treating waste can contribute significantly to the cost of running laboratories. This study introduced a simple and economical waste management system such that readily available used chromatography-grade inorganic materials, such as silica and alumina (basic and acidic), are utilized to treat remnant dye solutions and solution wastes from educational and small research laboratories. To recycle the adsorbents, they were heated to 600 °C, where the adsorbates were combusted. The results showed that acidic alumina is an effective adsorbent material for azo dyes and anionic dyes/stains, as well as textile dyes, with a 98 to 100% removal efficiency. Furthermore, alumina and silica possess excellent regeneration properties, where the dye removal efficiency of the materials was retained after regeneration at 600 °C. The adsorption properties of the materials were compared with those of aliginite and activated biomass from coffee grounds. Kinetic and thermodynamic studies of the sorption processes on the different materials were carried out. Overall, the inorganic materials used were efficient at removing contaminating remnant organic dyes stemming from educational and small research laboratories. |
| first_indexed | 2024-03-09T22:30:39Z |
| format | Article |
| id | doaj.art-24133a9b25cf4e4cb37bd37f36c18f49 |
| institution | Directory Open Access Journal |
| issn | 2297-8739 |
| language | English |
| last_indexed | 2024-03-09T22:30:39Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Separations |
| spelling | doaj.art-24133a9b25cf4e4cb37bd37f36c18f492023-11-23T18:57:02ZengMDPI AGSeparations2297-87392022-06-019614410.3390/separations9060144Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research LaboratoriesAnifat Adenike Bankole0Vijo Poulose1Tholkappiyan Ramachandran2Fathalla Hamed3Thies Thiemann4Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesDepartment of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesDepartment of Physics, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesDepartment of Physics, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesDepartment of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesEducational and research laboratories often produce relatively small amounts of highly diverse organic wastes. Treating waste can contribute significantly to the cost of running laboratories. This study introduced a simple and economical waste management system such that readily available used chromatography-grade inorganic materials, such as silica and alumina (basic and acidic), are utilized to treat remnant dye solutions and solution wastes from educational and small research laboratories. To recycle the adsorbents, they were heated to 600 °C, where the adsorbates were combusted. The results showed that acidic alumina is an effective adsorbent material for azo dyes and anionic dyes/stains, as well as textile dyes, with a 98 to 100% removal efficiency. Furthermore, alumina and silica possess excellent regeneration properties, where the dye removal efficiency of the materials was retained after regeneration at 600 °C. The adsorption properties of the materials were compared with those of aliginite and activated biomass from coffee grounds. Kinetic and thermodynamic studies of the sorption processes on the different materials were carried out. Overall, the inorganic materials used were efficient at removing contaminating remnant organic dyes stemming from educational and small research laboratories.https://www.mdpi.com/2297-8739/9/6/144remnant dyessilicaacidic aluminaadsorptionregenerationkinetics |
| spellingShingle | Anifat Adenike Bankole Vijo Poulose Tholkappiyan Ramachandran Fathalla Hamed Thies Thiemann Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories Separations remnant dyes silica acidic alumina adsorption regeneration kinetics |
| title | Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories |
| title_full | Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories |
| title_fullStr | Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories |
| title_full_unstemmed | Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories |
| title_short | Comparative Study of the Selective Sorption of Organic Dyes on Inorganic Materials—A Cost-Effective Method for Waste Treatment in Educational and Small Research Laboratories |
| title_sort | comparative study of the selective sorption of organic dyes on inorganic materials a cost effective method for waste treatment in educational and small research laboratories |
| topic | remnant dyes silica acidic alumina adsorption regeneration kinetics |
| url | https://www.mdpi.com/2297-8739/9/6/144 |
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