Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water

Dinesh Shetty, Ilma Jahovic, Jesus Raya, Zouhair Asfari, John Carl Olsen, Ali Trabolsi

    Research output: Contribution to journalArticle

    Abstract

    Organic micropollutants are hazards to the environment and human health. Conventional technologies are often inefficient at removing them from wastewater. For example, commercial activated carbon (AC) exhibits slow uptake rates, limited capacities, and is costly to regenerate. Here, we report the utility of porous calix[4]arene-based materials, CalPn (n = 2-4), for water purification. Calixarenes are a common motif in supramolecular chemistry but have rarely been incorporated into extended, porous networks such as organic polymers. CalPn exhibit pollutant uptake rates (kobs) and adsorption capacities (qmax) that are among the highest reported. For example, the kobs of CalP4 for bisphenol A (BPA) is 2.12 mg/g·min, which is significantly higher (16 to 240 times) than kobs for ACs and 1.4 times higher than that of the most efficient material previously reported; the qmax of CalP4 for BPA is 403 mg/g. The CalPn polymers can be regenerated several times, with performance levels left undiminished, by a simple wash procedure that is less energy intensive than that required for ACs. These findings demonstrate the potential of calixarene-based materials for organic micropollutant removal.

    Original languageEnglish (US)
    Pages (from-to)2976-2981
    Number of pages6
    JournalACS Applied Materials and Interfaces
    Volume10
    Issue number3
    DOIs
    StatePublished - Jan 24 2018

    Fingerprint

    Calixarenes
    Water
    Supramolecular chemistry
    Organic polymers
    Activated carbon
    Purification
    Hazards
    Polymers
    Wastewater
    Health
    Adsorption
    bisphenol A

    Keywords

    • adsorption
    • bisphenol A
    • calix[n]arenes
    • micropollutants
    • porous organic polymers
    • propranolol
    • water purification

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water. / Shetty, Dinesh; Jahovic, Ilma; Raya, Jesus; Asfari, Zouhair; Olsen, John Carl; Trabolsi, Ali.

    In: ACS Applied Materials and Interfaces, Vol. 10, No. 3, 24.01.2018, p. 2976-2981.

    Research output: Contribution to journalArticle

    Shetty, Dinesh ; Jahovic, Ilma ; Raya, Jesus ; Asfari, Zouhair ; Olsen, John Carl ; Trabolsi, Ali. / Porous Polycalix[4]arenes for Fast and Efficient Removal of Organic Micropollutants from Water. In: ACS Applied Materials and Interfaces. 2018 ; Vol. 10, No. 3. pp. 2976-2981.
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