Hasri, Army Auliah, Diana E. Pratiwi, Sulfikar, Nur Yusaerah
A selective chitosan adsorbent may remove Cd2+ and Pb2+ ions in aquatic environment to reduce pollution. This study has applied crosslink chitosan to reduce Cd2+ and Pb2+ ions in water. The study is related to the searching of optimum condition with respect to citric acid and sodium tripolyphosphate concentrations in a batch method. The study also includes the determination of optimum pH and interaction study of complex molecule with either Cd2+ or Pb2+ ions in relation to competitive chitosan adsorption. The optimum pH is found at pH 5. The optimum concentration of citric acid with chitosan is found to be 1% (b / v). It is concluded that chitosan adsorbent is selective for Pb2+ over Cd2+ ions. © 2019 IOP Publishing Ltd.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Makassar, Parangtambung, Makassar, Indonesia
