Keratin Fibers and Structures for Nanofiltration
Keratin protein is the main composition of the fiber fraction separated from the feather. These fibers consist of a network of hollow fibrous structures which act as nanofilters. The metal binding capacity of functional groups present in the structure of the protein network is unique for removal of heavy metals from solutions. The fibers are stable at acidic as well as alkaline pH, and have substantial structural integrity. Keratin fibers can be reused several times by conducting loading-elution cycles. Adsorbed heavy metals can be desorbed from the fiber by pH adjustments. The alkaline ultrasonic activation process improves adsorption capacity of keratin protein fibers.
KeywordsHeavy Metal Copper Uptake Protein Fiber Atomic Force Micro Active Functional Group
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