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CELLULOSE MODIFIED WITH CITRIC ACID AND ITS ABSORPTION OF Pb2+ and Cd2+ IONS
Published: 05 November 2009 by MDPI in The 13th International Electronic Conference on Synthetic Organic Chemistry session Polymer and Supramolecular Chemistry
Abstract: Cellulose was modified with citric acid in high temperature. Investigations of its absorption of heavy metal ions (such as Pb2+ and Cd2+) showed that modified cellulose in conditions 120°C and 12 h and in mass ratio of cellulose :citric acid=1:3 had highest absorption capacity. Absorption capacity of modified cellulose increased in accordance with increase of concentrations of ions. Structure of modified cellulose was confirmed by IR spectra and SEM pictures.