In this study, chitosan and bio-based substances (BBS) obtained from composted biowaste were used as stabilizers for the synthesis of magnet-sensitive nanoparticles (NPs) via coprecipitation method. A pyrolysis treatment was carried out on both biopolymers at 550°C, and their consequent conversion into a carbon matrix was followed by means of different physicochemical characterization techniques (mainly FTIR spectroscopy and XRD), whereas magnetic properties were evaluated by magnetization curves. The prepared materials were tested in water remediation processes from arsenic (As) species (both inorganic and organic forms). These tests, explained by means of the most common adsorption models, evidenced that the best performances were reached by both materials obtained after pyrolysis treatments, pointing out the promising application of such magnet-sensitive materials as easy-recoverable tools for water purification treatments.

Sustainable magnet-responsive nanomaterials for the removal of arsenic from contaminated water

CELI, Luisella Roberta;BIANCO PREVOT, Alessandra;MAGNACCA, Giuliana;ZANZO, ELENA;MARTIN, Maria
Last
2018

Abstract

In this study, chitosan and bio-based substances (BBS) obtained from composted biowaste were used as stabilizers for the synthesis of magnet-sensitive nanoparticles (NPs) via coprecipitation method. A pyrolysis treatment was carried out on both biopolymers at 550°C, and their consequent conversion into a carbon matrix was followed by means of different physicochemical characterization techniques (mainly FTIR spectroscopy and XRD), whereas magnetic properties were evaluated by magnetization curves. The prepared materials were tested in water remediation processes from arsenic (As) species (both inorganic and organic forms). These tests, explained by means of the most common adsorption models, evidenced that the best performances were reached by both materials obtained after pyrolysis treatments, pointing out the promising application of such magnet-sensitive materials as easy-recoverable tools for water purification treatments.
342
260
269
http://www.sciencedirect.com/science/article/pii/S0304389417306258
Arsenic; Biomass valorization; Chitosan; Iron oxides; Magnetic materials; Pyrolysis
Nisticò, Roberto; Celi, Luisella; Bianco Prevot, Alessandra; Carlos, Luciano; Magnacca, Giuliana; Zanzo, Elena; Martin, Maria
File in questo prodotto:
File Dimensione Formato  
Nisticò_JHM_APERTO_2017.pdf

Accesso aperto con embargo fino al 15/10/2019

Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 1.18 MB
Formato Adobe PDF
1.18 MB Adobe PDF Visualizza/Apri
Nisticò et al_JHM_2018_published.pdf

Accesso riservato

Tipo di file: PDF EDITORIALE
Dimensione 2.48 MB
Formato Adobe PDF
2.48 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/2318/1649788
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 48
  • ???jsp.display-item.citation.isi??? 43
social impact