Efficient complexation-ultrafiltration process for metal ions removal from aqueous solutions using a novel carboxylated polyethylenimine derivative (PEI-COOH)

Andrea Masotti, Antonella Giuliano, Giancarlo Ortaggi

Research output: Contribution to journalArticle


The presence of large quantities of toxic heavy metals (i.e. cobalt, chromium, lead, cadmium, zinc, etc.) in the environment may be a serious threat to humans. Hence, the development of novel methods able to eliminate these toxic contaminants from wastewater in efficient and economically viable ways is highly desirable. In this work we assayed the ability of two polymers, polyethylenimine (PEI) and its carboxylated derivative (PEI-COOH), to complex heavy metals and to remove them from contaminated water by polymer-assisted ultrafiltration. PEI is able to complex efficiently Ag, Al, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sn and Zn and reduce their concentration in permeate to values

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalCurrent Analytical Chemistry
Issue number1
Publication statusPublished - Jan 2010



  • Complexation
  • Metal ions
  • Polyethylenimine
  • Ultrafiltration
  • Wastewater

ASJC Scopus subject areas

  • Analytical Chemistry

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