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.

The innovation comes from the sea: Chitosan and alginate hybrid gels and films as sustainable materials for wastewater remediation

Tummino M. L.;Magnacca G.;Laurenti E.;
2020

Abstract

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.
21
2
550
565
https://www.mdpi.com/1422-0067/21/2/550/pdf
Alginate; Biopolymers; Biowaste valorisation; Chitosan; Hydrogels; Wastewater remediation
Tummino M.L.; Magnacca G.; Cimino D.; Laurenti E.; Nistico R.
File in questo prodotto:
File Dimensione Formato  
ijms-21-00550 chitogel.pdf

Accesso aperto

Descrizione: pdf editoriale
Tipo di file: PDF EDITORIALE
Dimensione 1.39 MB
Formato Adobe PDF
1.39 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1731045
Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 10
social impact