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https://hdl.handle.net/1822/75499| Título: | Processing strategies to obtain highly porous silk fibroin structures with tailored microstructure and molecular characteristics and their applicability in water remediation |
| Autor(es): | Reizabal, A. Costa, Carlos Miguel Silva Saiz, P. G. Gonzalez, B. Pérez-Álvarez, L. Fernández de Luis, R. Garcia, A. Vilas-Vilela, J. L. Lanceros-Méndez, S. |
| Palavras-chave: | Silk fibroin Porous microstructure Adsorption mechanism Heavy metals removal Water remediation |
| Data: | Fev-2021 |
| Editora: | Elsevier |
| Revista: | Journal of Hazardous Materials |
| Citação: | Reizabal, A., Costa, C. M., Saiz, P. G., Gonzalez, B., Pérez-Álvarez, L., Fernández de Luis, R., . . . Lanceros-Méndez, S. (2021). Processing Strategies to Obtain Highly Porous Silk Fibroin Structures with Tailored Microstructure and Molecular Characteristics and Their Applicability in Water Remediation. Journal of Hazardous Materials, 403, 123675. doi: https://doi.org/10.1016/j.jhazmat.2020.123675 |
| Resumo(s): | The present work reports on the control of silk fibroin (SF) porous structures performance through various processing methods. The study includes the analysis of two dissolving techniques (CaCl2/H2O/EtOH ternary and LiBr/H2O binary solutions), three regeneration methods (gelation, lyophilization and gas foaming) and one post-processing (EtOH). In all the cases, followed steps lead to SF structures with porosity values above 94% and large surface areas. Also, results about samples microstructure, secondary organization, crystallinity and water behavior, reveal a direct correlation between processing and SF properties. Thanks to the achieved progress, the SF varying porous structures were evaluated for metalloids (As5+ and As3+) and heavy metals (Cr6+ and Cr3+) adsorption, observing a direct relationship between samples processing and ionic species adsorption ability. Thus, it is shown that the control of the properties of SF based porous structures through processing, represents a suitable and ecofriendly approach for the development of bio-based materials for environmental applications. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/75499 |
| DOI: | 10.1016/j.jhazmat.2020.123675 |
| ISSN: | 0304-3894 |
| Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0304389420316617 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: | CDQuim - Artigos (Papers) |
