Small ionic compounds and dyes from industrial and domestic facilities pollute water to different degrees. In this research, a series of films was made from natural polysaccharides, including alginate, pectin, carrageenan and xylan, and crosslinked. A positively or negatively charged layer of polyelectrolyte (polyethylenimine or poly(methyl vinyl ether-alt-maleic acid), respectively) was prepared on the film with the target to capture these pollutants. Film thicknesses, swelling ratios and mechanical properties were measured. The surface morphologies of films before and after contaminant sorption were observed by scanning electron microscopy (SEM). Ways to optimize the film sorption capacities were also investigated.

Ionic contaminant and dye removal from water using polysaccharide blended films

251st National Meeting (2016)

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