Valorisation of rhodamine B adsorbed copolymer beads for the recovery of Cu2+ from e-waste: Green approach
| Autor: | K K Arun Viswan, D. Gangadharan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
021110 strategic defence & security studies Elution Process Chemistry and Technology 0211 other engineering and technologies Langmuir adsorption model 02 engineering and technology 010501 environmental sciences 01 natural sciences Pollution chemistry.chemical_compound symbols.namesake Adsorption chemistry Rhodamine B symbols Acetone Copolymer Chemical Engineering (miscellaneous) Suspension polymerization Selectivity Waste Management and Disposal 0105 earth and related environmental sciences Nuclear chemistry |
| Zdroj: | Journal of Environmental Chemical Engineering. 6:7002-7009 |
| ISSN: | 2213-3437 |
| DOI: | 10.1016/j.jece.2018.10.054 |
| Popis: | The methacrylic acid-divinylbenzene copolymer beads were prepared by suspension polymerization and used for the removal of rhodamine B (RhB) dye. Batch experiments were carried out to find the adsorption parameters. Langmuir adsorption isotherm model was found to be the best suited for the adsorption of RhB on the copolymer beads. The RhB adsorbed copolymer beads were valorised as adsorbent for the removal of Cu2+ from e-waste solution, which was compared with electrolytic solution. The Cu2+ loaded on the RhB containing copolymer beads was recovered by using 1 M HNO3. The RhB loaded on the copolymer beads were successfully eluted by using a mixture of acetone and acetic acid. Selectivity of RhB dye for the recovery of Cu2+ ions from e-waste was also carried out in this work. Methods were developed to recover both the Cu2+ and RhB dye separately. Microscopic analysis was performed to understand the adsorption of RhB and ion-exchange of Cu2+ onto the copolymer beads. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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