Thioether-Crown-Rich Calix[4]arene Porous Polymer for Highly Efficient Removal of Mercury from Water

Dinesh Shetty, Sandra Boutros, Asma Eskhan, Anna Marie De Lena, Tina Skorjanc, Zouhair Asfari, Hassan Traboulsi, Javed Mazher, Jesus Raya, Fawzi Banat, Ali Trabolsi

Research output: Contribution to journalArticle

Abstract

A rational design of adsorbents with high uptake efficiency and fast kinetics for highly toxic pollutants is a key challenge in environmental remediation. Here, we report the design of a well-defined thioether-crown-rich porous calix[4]arene-based mesoporous polymer S-CX4P and its utility in removal of highly relevant toxic mercury (Hg 2+ ) from water. The polymer shows an exceptional, record-high uptake efficiency of 1686 mg g -1 and the fastest initial adsorption rate of 278 mg g -1 min -1 . Remarkably, S-CX4P can effectively remove Hg 2+ from high concentration (5 ppm) to below the acceptable limit for drinking water (2 ppb) even in the presence of other competitive metals at high concentrations. In addition, the polymer can be easily regenerated at room temperature and reused multiple times with negligible loss in uptake rate and efficiency. The results demonstrate the potential of rationally designed thioether-crown-rich polymers for high performance mercury removal.

Original languageEnglish (US)
Pages (from-to)12898—12903.
Number of pages6
JournalACS Applied Materials and Interfaces
Volume11
Issue number13
DOIs
StatePublished - 2019

Keywords

  • calix[4]arene
  • mercury removal
  • pollutant adsorption
  • porous polymers
  • water purification

ASJC Scopus subject areas

  • Materials Science(all)

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    Shetty, D., Boutros, S., Eskhan, A., De Lena, A. M., Skorjanc, T., Asfari, Z., Traboulsi, H., Mazher, J., Raya, J., Banat, F., & Trabolsi, A. (2019). Thioether-Crown-Rich Calix[4]arene Porous Polymer for Highly Efficient Removal of Mercury from Water. ACS Applied Materials and Interfaces, 11(13), 12898—12903.. https://doi.org/10.1021/acsami.9b02259