Adsorption dynamics for the electrospun konjac glucomannan fabrics containing alginate for removal of the environmental pollutants from aqueous solutions

Abstract

Electrospun non-woven fabric was fabricated from the mixtures of konjac glucomannan (KGM) and sodium alginate to introduce the selective adsorption properties of alginate. The adsorption curves of methylene blue, used as a model substance for the absorbents of the fabrics, were determined for the KGM fabrics with different compositions of alginate. The adsorption data at the initial stage showed a typical feature for the diffusion-limited adsorption, depending on the composition of alginate in the fabric and the molar concentration of methylene blue in the immersing solution. The theoretical data analyzed were investigated to characterize the adsorption properties of the electrospun KGM-alginate composite fabrics.