A green metal–organic framework to monitor water contaminants. Issue 55 (5th September 2018)

• Record Type: Journal Article
• Authors: Rocío-Bautista, Priscilla; Pino, Verónica; Ayala, Juan H.; Ruiz-Pérez, Catalina; Vallcorba, Oriol; Afonso, Ana M.; Pasán, Jorge
• Is Part Of: RSC advances. Volume 8:Issue 55(2018)
• Page Start: 31304
• Page End: 31310
• Publication Date: 2018-09-05
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra05862h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A low cytotoxic MOF prepared with an environmental-friendly approach, as a novel extractant of water pollutants using a microextraction method. Abstract : The CIM-80 material (aluminum(iii )-mesaconate) has been synthetized in high yield through a novel green procedure involving water and urea as co-reactants. The CIM-80 material exhibits good thermal stability with a working range from RT to 350 °C with a small contraction upon desolvation. Moreover, this material is stable in water at different pH values (1–10) for at least one week, and shows a LC50 value higher than 2 mg mL −1 . The new material has been tested in a microextraction methodology for the monitoring of up to 22 water pollutants while presenting little environmental impact: only 20 mg of CIM-80 and 500 μL of acetonitrile are needed per analysis. The analytical performance of the CIM-80 in the microextraction strategy is similar to or even better for several pollutants than that of MIL-53(Al). The average extraction efficiencies range from ∼20% for heavy polycyclic aromatic hydrocarbons to ∼70–100% for the lighter ones. In the case of the emerging contaminants, the average extraction efficiency can reach values up to 70% for triclosan and carbamazepine.