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https://hdl.handle.net/1822/92327
Título: | Polydopamine bridging encapsulated laccase on MOF-based mixed-matrix membrane for selective dye/salt separation |
Autor(es): | Yang, Xue Chen, XinYi Su, Xiaolei Cavaco-Paulo, Artur Wang, Hongbo Su, Jing |
Palavras-chave: | Dye/salt separation Laccase Metal-organic frameworks |
Data: | 2024 |
Editora: | Elsevier Ltd |
Revista: | International Journal of Biological Macromolecules |
Citação: | Yang, Xue; Chen, XinYi; Su, Xiaolei; Cavaco-Paulo, Artur; Wang, Hongbo; Jing Su, Polydopamine bridging encapsulated laccase on MOF-based mixed-matrix membrane for selective dye/salt separation. International Journal of Biological Macromolecules, 274, Part 1(133387), 2024 |
Resumo(s): | Mixed-matrix membranes (MMMs) exhibit significant potential for dye/salt separation. However, overcoming the trade-off between permeability and selectivity, as well as membrane fouling, remains a formidable task. In this work, a biocatalytic membrane was prepared using polydopamine (PDA) as a bridge connecting the metal-organic framework (MOF)-based MMM and immobilized laccase. The MOF-based MMM featured an interconnected MOF anchoring on the polyvinylidene fluoride (PVDF) skeleton structure, effectively mitigating the trade-off phenomenon and enabling efficient separation of dyes and salts. Enzyme-MOF was in situ grown on the MOF-based MMM via coordination reactions between PDA and metal ion, effectively degrading the adhesion of organic pollutants and fouling, ensuring the long-term stable operation of the membrane. The Lac-MOF@PDA MMM exhibited excellent water permeability of 142.4 L·m2·h1, 100 % rejection for dye, and less than 10 % rejection for NaCl. Furthermore, the separation mechanism of Lac-MOF@PDA MMM was systematically investigated, and the results suggested a synergistic combination of rejection, adsorption and catalysis processes. This biocatalytic membrane with multiple sieving and biological catalysis is expected to pave a promising way for efficient wastewater treatment applications. |
Tipo: | Artigo |
Descrição: | Version of Record 26 June 2024 |
URI: | https://hdl.handle.net/1822/92327 |
DOI: | 10.1016/j.ijbiomac.2024.133387 |
ISSN: | 0141-8130 |
e-ISSN: | 1879-0003 |
Versão da editora: | http://www.elsevier.com/locate/issn/01418130 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_57910_1.pdf Acesso restrito! | 7,47 MB | Adobe PDF | Ver/Abrir |