Sustainable Magnetic Materials (from Chitosan and Municipal Biowaste) for the Removal of Diclofenac from Water
by
Roberto Nisticò 1
, Alessandra Bianco Prevot 2, Giuliana Magnacca 2,3,*, Lorenzo Canone 2, Sara García-Ballesteros 4 and Antonio Arques 4
, Alessandra Bianco Prevot 2, Giuliana Magnacca 2,3,*, Lorenzo Canone 2, Sara García-Ballesteros 4 and Antonio Arques 4
1
Department of Applied Science and Technology DISAT, Polytecnic of Torino, C.so Duca degli Abruzzi 24, 10124 Torino, Italy
2
Chemistry Department, University of Torino, 10125 Torino, Italy
3
NIS Interdepartmental Centre, University of Torino, 10125 Torino, Italy
4
Department of Textile and Paper Engineering, Universitat Politècnica de València, E-03801 Alcoy, Spain
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(8), 1091; https://doi.org/10.3390/nano9081091
Received: 10 July 2019 / Revised: 22 July 2019 / Accepted: 25 July 2019 / Published: 30 July 2019
(This article belongs to the Special Issue Sustainable and Safe Nano-Enabled Water Treatment Applications)
The photodegradation of an aqueous solution of diclofenac (DCF) has been attempted in the presence of hydrogen peroxide and organic/inorganic hybrid magnetic materials under simulated and real solar light. The hybrid magnetic materials have been prepared via coprecipitation synthesis starting from iron(II) and iron(III) inorganic salts in the presence of bioderived organic products (i.e., chitosan or bio-based substances isolated from commercially available composted urban biowastes) acting as stabilizers of the iron-containing phase. In addition to the as prepared hybrid materials, the corresponding materials obtained after a pyrolytic step at low temperature (550 °C) have been tested. The obtained results evidenced the capability of the materials to activate hydrogen peroxide at mild pH promoting DCF (photo) degradation. All the materials feature also as adsorbents since a decrease of DCF is observed also when working in the dark and in the absence of hydrogen peroxide.
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Keywords:
bio-based substances; biomasses valorization; chitosan; magnetic materials; photocatalysis; wastewater treatments
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Nisticò, R.; Bianco Prevot, A.; Magnacca, G.; Canone, L.; García-Ballesteros, S.; Arques, A. Sustainable Magnetic Materials (from Chitosan and Municipal Biowaste) for the Removal of Diclofenac from Water. Nanomaterials 2019, 9, 1091.
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