ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Cu(II) removal enhancement from aqueous solutions using ion-imprinted membrane technique
Soheil Zarghami, Mansoor Kazemimoghadam, and Toraj Mohammadi
Research Centre for Membrane Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology (IUST), 13114-16846, Narmak — Tehran, Iran
Abstract: In this study, Cu(II)-ion-imprinted membrane adsorbents were prepared via cross-linking of blended chitosan/poly(vinyl alcohol) using glutaraldehyde as cross-linker and copper ions as template. The ability of IIMs to adsorb copper ions from aqueous solutions was assessed using a batch of experiments under different conditions by changing cross-linking density (0.05 mass %, 0.1 mass %, and 0.2 mass %), template content (0.2 mass %, 0.5 mass %, and 0.9 mass %), initial analyte concentration (50 mg L−1, 100 mg L−1, and 150 mg L−1), and adsorbent concentration (0.5 g L−1, 1.0 g L−1, and 2.0 g L−1). The Taguchi method was used to plan a minimum number of experiments. The following optimal levels were thus determined for the four factors: cross-linking density: 0.1 mass %; template content: 0.5 mass %; initial analyte concentration: 150 mg L−1; and adsorbent concentration: 0.3 g L−1.
Keywords: Cu(II) removal – ion-imprinted membrane – template – chitosan – Taguchi method
Full paper is available at www.springerlink.com.
Chemical Papers 68 (6) 809–815 (2014)