1. Uptake of Pb2+ and Cu2+ by novel biopolymers
- Author
-
John R. Deans and Brian G. Dixon
- Subjects
Terephthalic acid ,Environmental Engineering ,Hydroxamic acid ,Ecological Modeling ,Inorganic chemistry ,engineering.material ,Pollution ,Chitosan ,chemistry.chemical_compound ,chemistry ,Chitin ,engineering ,Biopolymer ,Cellulose ,Ion-exchange resin ,Waste Management and Disposal ,Water Science and Technology ,Civil and Structural Engineering ,Nuclear chemistry ,Alginic acid - Abstract
A series of different functionalized biopolymers were prepared and their comparative efficiencies for removing lead (II) and copper (II) ions from water at part per million concentrations determined. The biopolymers evaluated included cellulose, alginic acid, chitin, chitosan and carrageenan. Besides the base biopolymers, the carboxymethyl and hydroxamic acid derivatives of these materials were prepared and tested as well. Terephthalic acid and its hydroxamic acid derivative and a state of the art ion exchange resin, Chelex 20™ (Bio-Rad), were also tested as controls. It was found that, generally, the hydroxamic acid derivatives were the most efficient at removing both metals at a number of different starting ion concentrations although no one material was found to be the best under all experimental circumstances.
- Published
- 1992