Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery
The recent increase in interest in rare earth elements is due to their increasing use in many areas of life. However, along with their increasing popularity, the problem of their natural resources availability arises. In this study, an alginate–lignin composite (ALG-L) was fabricated and tested for...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/944 |
| _version_ | 1797486634350936064 |
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| author | Dominika Fila Zbigniew Hubicki Dorota Kołodyńska |
| author_facet | Dominika Fila Zbigniew Hubicki Dorota Kołodyńska |
| author_sort | Dominika Fila |
| collection | DOAJ |
| description | The recent increase in interest in rare earth elements is due to their increasing use in many areas of life. However, along with their increasing popularity, the problem of their natural resources availability arises. In this study, an alginate–lignin composite (ALG-L) was fabricated and tested for adsorptive abilities of the rare earth elements (La(III), Ce(III), Pr(III), and Nd(III)) from aqueous solutions. The characterization of the newly synthetized calcium alginate–lignin composite was performed using ATR/FT-IR, SEM, EDX, OM, AFM, XRD, BET, sieve analysis and pH<sub>pzc</sub> measurements. The adsorption mechanism of the ALG<sub>5</sub>L<sub>1</sub> composite for REEs was analyzed through a series of kinetic, equilibrium and thermodynamic adsorption experiments. Under the optimum sorption conditions, i.e., sorbent mass 0.1 g, pH 5.0, temperature 333 K, the maximum adsorption capacities of the ALG<sub>5</sub>L<sub>1</sub> composite for La(III), Ce(III), Pr(III), and Nd(III) reached 109.56, 97.97, 97.98, and 98.68 mg/g, respectively. The desorption studies indicate that the new calcium alginate–lignin composite is characterized by good recycling properties and can be also reused. To sum up the advantages of low cost, easy synthesis, high adsorption efficiencies and reusability indicate that the ALG<sub>5</sub>L<sub>1</sub> composite has great application perspectives for REEs recovery. |
| first_indexed | 2024-03-09T23:36:05Z |
| format | Article |
| id | doaj.art-7296e57eb2324a44901f3f24d3095a10 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:36:05Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-7296e57eb2324a44901f3f24d3095a102023-11-23T16:59:59ZengMDPI AGMaterials1996-19442022-01-0115394410.3390/ma15030944Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements RecoveryDominika Fila0Zbigniew Hubicki1Dorota Kołodyńska2Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, PolandDepartment of Inorganic Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, PolandDepartment of Inorganic Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, PolandThe recent increase in interest in rare earth elements is due to their increasing use in many areas of life. However, along with their increasing popularity, the problem of their natural resources availability arises. In this study, an alginate–lignin composite (ALG-L) was fabricated and tested for adsorptive abilities of the rare earth elements (La(III), Ce(III), Pr(III), and Nd(III)) from aqueous solutions. The characterization of the newly synthetized calcium alginate–lignin composite was performed using ATR/FT-IR, SEM, EDX, OM, AFM, XRD, BET, sieve analysis and pH<sub>pzc</sub> measurements. The adsorption mechanism of the ALG<sub>5</sub>L<sub>1</sub> composite for REEs was analyzed through a series of kinetic, equilibrium and thermodynamic adsorption experiments. Under the optimum sorption conditions, i.e., sorbent mass 0.1 g, pH 5.0, temperature 333 K, the maximum adsorption capacities of the ALG<sub>5</sub>L<sub>1</sub> composite for La(III), Ce(III), Pr(III), and Nd(III) reached 109.56, 97.97, 97.98, and 98.68 mg/g, respectively. The desorption studies indicate that the new calcium alginate–lignin composite is characterized by good recycling properties and can be also reused. To sum up the advantages of low cost, easy synthesis, high adsorption efficiencies and reusability indicate that the ALG<sub>5</sub>L<sub>1</sub> composite has great application perspectives for REEs recovery.https://www.mdpi.com/1996-1944/15/3/944alginatelignincompositeadsorptionreusability |
| spellingShingle | Dominika Fila Zbigniew Hubicki Dorota Kołodyńska Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery Materials alginate lignin composite adsorption reusability |
| title | Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery |
| title_full | Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery |
| title_fullStr | Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery |
| title_full_unstemmed | Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery |
| title_short | Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery |
| title_sort | fabrication characterization and evaluation of an alginate lignin composite for rare earth elements recovery |
| topic | alginate lignin composite adsorption reusability |
| url | https://www.mdpi.com/1996-1944/15/3/944 |
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