In the literature, thiosemicarbazones have demonstrated an array of uses, including analytical applications and separation of metals. This is in part due to their ability to form chelates with metals efficiently. In this study, resins were separately loaded with three new 5-formylfuran-2-sulfonic acid thiosemicarbazone (FFSA-TSC) ligands and were tested to determine if they could be utilized for heavy metal water remediation. Strong anion exchange resins used in the study were loaded with one percent by weight of each ligand, and then they were exposed to Co-57, Ni-63, or Cd-109. Using batch techniques for these radiotracers, the resins were placed under various environmental pH levels at different time intervals. The adsorption values of the metals to the resin beads were calculated as dry-weight distribution (Dw) values. The metals, specifically the Cd-109, were extracted at very high levels in these conditions. These materials which we call DIFANEX could potentially be used to extract heavy metals from water sources under environmental conditions, or they could be used to separate mixtures of metals for analytical purposes.

Potential heavy metal water remediation using 5-formylfuran-2-sulfonic acid thiosemicarbazone (DIFANEX) chelating resins

249th National Meeting (2015)

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