THE FRIENDLY MATERIALS FOR ENVIRONMENTALLY PROTECTION
Journal Title: Journal of Science And Arts - Year 2008, Vol 9, Issue 2
Abstract
A common approach for achieving new polymer materials, characterized by metal ions selectivity, presumes the use of cyclic chelators. That supposes multistep synthesis and a prior knowledge of how the cycling process can affect the binding and the selectivity. There are two general ways to obtain polymer– metal ions complexes: 1. by retention of the metal ion in a fix cage. The density of the fix cages and the accessibility of the metal ions to the functional groups determine the retention efficiency. The metal ion retention is a consequence of a sterical effect. 2. through a complexing process determined by the polychelator groups position in the macromolecular chain and by their relative distances. This study is a report regarding the possibility to develop new polymer materials designated for waste waters treatment. This article presents the possible use of several new polymeric structures for the removal of Cu(II) and Cr (III) ions from aqueous solutions. The retention mechanism is suggested and discussed. Operational parameters such as chelator nature, pH value, and batch time were investigated.
Authors and Affiliations
Ana Maria Albu
Keywords
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