Carbon composite membrane derived from MIL-125-NH2 MOF for the enhanced extraction of emerging pollutants
| Autor: | Neus Crespí Sánchez, Carlos Palomino Cabello, Gemma Turnes Palomino, Jorge Luis Guzmán-Mar, Laura Hinojosa-Reyes |
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| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Carbonization Chemistry Health Toxicology and Mutagenesis 0208 environmental biotechnology Extraction (chemistry) Public Health Environmental and Occupational Health chemistry.chemical_element Sorption 02 engineering and technology General Medicine General Chemistry Permeance 010501 environmental sciences 01 natural sciences Pollution 020801 environmental engineering Membrane Adsorption Chemical engineering Environmental Chemistry Solid phase extraction Carbon 0105 earth and related environmental sciences |
| Zdroj: | Chemosphere. 231:510-517 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2019.05.173 |
| Popis: | Porous carbon derived from amine-functionalized MIL-125 metal-organic framework (C-MIL-125-NH2) was prepared by carbonization at high temperature under inert atmosphere, and used for adsorption of bisphenol A (BPA) and 4-tert-butylphenol (4-tBP). The obtained carbon showed bimodal porosity and fast extraction of both pollutants in batch conditions following a pseudo-second-order model. The adsorption mechanism was studied by the measurement of zeta potential, and the results suggested that π-π stacking interactions between the carbon material and the phenol molecules probably are the main sorption mechanism. The prepared C-MIL-125-NH2 was incorporated into mechanically stable membranes for flow-through solid-phase extraction of studied phenols prior to HPLC analysis. The hybrid material showed excellent permeance to flow, easy regeneration and good performance for the simultaneous enrichment of mixtures of BPA and 4-tBP, facilitating their determination when present at low concentration levels. |
| Databáze: | OpenAIRE |
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