Evaluation of Dithiocarbamate-Modified Silica for Cisplatin Removal from Water

Despite the globally increasing use of platinum-based cytostatic drugs in treatment several types cancer, only limited attention has been paid to developing a for contaminated liquid samples originating from hospitals, laboratories and manufacturing facilities before after their administration. In this work, we assess efficiency low-cost adsorbent material, dithiocarbamate-functionalized silica, removing cisplatin solution containing it 0.5–150 mg L−1 concentration range. The advantage having surface-functionalized silica is that adsorption can occur by either non-covalent interaction or surface complexation. latter case platinum(II) de-complexed original drug no longer present. Adsorption occurs through first rapid step, followed second slower process. This likely due fact our operating conditions (0.9% w/v NaCl), compound present, which ligand substitution known proceed slowly. interesting performance, even at low metal concentration, facile synthesis material mean could be adapted other applications where recycling platinum realized.