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Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by cellulose and mercerized cellulose chemically modified with succinic anhydride
- Source :
-
Bioresource Technology . May2008, Vol. 99 Issue 8, p3077-3083. 7p. - Publication Year :
- 2008
-
Abstract
- Abstract: This work describes the preparation of new chelating material from mercerized cellulose. The first part treats the chemical modification of non-mercerized cellulose (cell 1) and mercerized cellulose (cell 2) with succinic anhydride. Mass percent gains (mpg) and degree of succinylation (DS) of cell 3 (from cell 1) and cell 4 (from cell 2) were calculated. Cell 4 in relation to cell 3 exhibited an increase in mpg and in the concentration of carboxylic functions of 68.9% and 2.8mmol/g, respectively. Cells 5 and 6 were obtained by treatment of cells 3 and 4 with bicarbonate solution to release the carboxylate functions and characterized by FTIR. The second part compares the adsorption capacity of cells 5 and 6 for Cu2+, Cd2+, and Pb2+ ions in an aqueous single metal solution. Adsorption isotherms were developed using Langmuir model. Cell 6 in relation to cell 5 exhibited an increase in Q max for Cu2+ (30.4mg/g), Cd2+ (86.0mg/g) and Pb2+ (205.9mg/g). [Copyright &y& Elsevier]
- Subjects :
- *ADSORPTION (Chemistry)
*HEAVY metals
*MERCERIZATION
*CELLULOSE
Subjects
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 99
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 29402229
- Full Text :
- https://doi.org/10.1016/j.biortech.2007.05.072