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Paperback – March 14, 2012

by Maha Al-Qunaibit (Author)

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This study on the sites of coordination, nature, and mode of bonding of Fe, Cu, Cd, and Sn in different types of algae, employed FT-IR, Mössbauer and NMR to throw some light on the structural conformations of the formed metal ion moieties. The metal ion uptake by chlorella vulgaris exhibited a linear relationship with ionic radii, where ion exchange dominates at low concentrations of Cu, whilst electrostatic binding showed to be the main mode of binding at high concentrations. Changes in bond vibrations of carboxylates confirmed their dominance as binding sites. In addition, 113Cd NMR spectra suggested the participation of -N and -OH containing ligands, and a six-coordinate structure. The Mössbauer spectra of Fe-57 revealed unequal bond lengths between Fe(III) ion and the bonded ligand atoms, and marine algae exhibited a reducing ability into Fe(II) moieties of low octahedral symmetry. Three polyhedral geometries around Sn-119 tetravalent moieties are in equilibrium, and are concentration dependent. The alga chlorella vulgaris restored part of its lost capacity towards metal binding, upon reuse, by aqueous ethanol metal ion solutions which increased with decrease in ionic radii.

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About the Author

Maha H. Al-Qunaibit is an Associate Professor of Inorganic Chemistry, King Saud University. She is a coauthor and translator (English to Arabic) of books in Inorganic Chemistry and Spectroscopy. Her research interests combine Materials and Bioinorganic Chemistry.

Paperback: 180 pages
Publisher: LAP LAMBERT Academic Publishing (March 14, 2012)
Language: English
ISBN-10: 3846597236
ISBN-13: 978-3846597231
Product Dimensions: 5.9 x 0.4 x 8.7 inches
Shipping Weight: 11.2 ounces (View shipping rates and policies)
Average Customer Review: Be the first to review this item
Amazon Best Sellers Rank: #16,177,265 in Books (See Top 100 in Books)
- #4661 in Books > Science & Math > Chemistry > Inorganic

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