For the first time, sustainable LaFeO3 powders were prepared from soluble bio-based substances (SBO) extracted from urban wastes. For the reparation of the perovskite-type powders, a modified solution combustion synthesis route was used, where SBO have the triple role of fuel, complexant and microstructural templates. A careful examination of the LaFeO3 powders, using complementary characterization techniques, evidenced their peculiar microstructural, morphological, textural and photocatalytic properties. Preliminary photodegradation tests of a phenol-based wastewater pollutant and photobleaching of a model dye were performed on the waste-derived and reference LaFeO3 powders; the obtained results encourage further studies on the application of these materials as heterogeneous catalysts for wastewater treatment. Moreover, a meaningful amount of entrapped matter was evidenced in the powders, which is responsible for most of their peculiar properties.

A new, sustainable LaFeO3 material prepared from biowaste-sourced soluble substances

TUMMINO, MARIA LAURA;AVETTA, PAOLA;FABBRI, DEBORA;BIANCO PREVOT, Alessandra;MONTONERI, Enzo;MAGNACCA, Giuliana
2015

Abstract

For the first time, sustainable LaFeO3 powders were prepared from soluble bio-based substances (SBO) extracted from urban wastes. For the reparation of the perovskite-type powders, a modified solution combustion synthesis route was used, where SBO have the triple role of fuel, complexant and microstructural templates. A careful examination of the LaFeO3 powders, using complementary characterization techniques, evidenced their peculiar microstructural, morphological, textural and photocatalytic properties. Preliminary photodegradation tests of a phenol-based wastewater pollutant and photobleaching of a model dye were performed on the waste-derived and reference LaFeO3 powders; the obtained results encourage further studies on the application of these materials as heterogeneous catalysts for wastewater treatment. Moreover, a meaningful amount of entrapped matter was evidenced in the powders, which is responsible for most of their peculiar properties.
39
877
885
perovskite; soluble bio-based substances (SBO); urban wastes
Francesca Deganello; Maria Laura Tummino; Carla Calabrese; Maria Luisa Testa; Paola Avetta; Debora Fabbri; Alessandra Bianco Prevot; Enzo Montoneri; Giuliana Magnacca
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1507897
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