The Innovation Comes from the Sea: Chitosan and Alginate Hybrid Gels and Films as Sustainable Materials for Wastewater Remediation.
The growing utilization of renewable and residual biomasses for environmental preservation and remediation are important goals to be pursued to minimize the environmental impact of human activities. In this paper, sodium alginate (derived from brown algae) was crosslinked using chitosan (mainly derived from the exoskeleton of crustaceans) in the presence of biowaste-derived substances isolated from green compost (BBS-GC), to produce hydrogels and dried films. The obtained materials were tested as adsorbents for wastewater remediation. To this purpose, gels were characterized using a multi-analytical approach and used as active substrates for the removal of three differently-charged molecules, chosen as model pollutants: crystal violet, rhodamine B, and orange II. The effectiveness of the gel formulations was demonstrated and attributed to the variety of active functionalities introduced by the different precursors, the structural factors and the peculiar physicochemical properties of the resulting materials.
['Tummino|Maria Laura|ML|0000-0002-1869-2602', 'Magnacca|Giuliana|G|0000-0002-3798-5232', 'Cimino|Dafne|D|0000-0002-6530-9303', 'Laurenti|Enzo|E|0000-0001-7363-4002', 'Nisticò|Roberto|R|0000-0001-8986-5542']
D000464:Alginates D001672:Biocompatible Materials D048271:Chitosan D000076282:Composting D052918:Environmental Restoration and Remediation D055772:Green Chemistry Technology D006801:Humans D020100:Hydrogels D062069:Inventions D008567:Membranes, Artificial D008855:Microscopy, Electron, Scanning D015394:Molecular Structure D000459:Phaeophyta D012623:Seawater D018505:Waste Management D062065:Waste Water
chitosan alginate wastewater remediation hydrogels biopolymers biowaste valorisation