Thermal inertization of amphibole asbestos modulates Fe topochemistry and surface reactivity

Anno
2020
Proponente Paolo Ballirano - Professore Ordinario
Sottosettore ERC del proponente del progetto
PE10_10
Componenti gruppo di ricerca
Componente Qualifica Struttura Categoria
Francesco Turci Dr. Centro Scansetti, Università di Torino Altro personale aggregato Sapienza o esterni, titolari di borse di studio di ricerca
Abstract

This study aims at disclosing the morphological and chemical-structural modifications that occur during thermal degradation of amphibole asbestos. Low-iron tremolite and iron-rich crocidolite will be heated at temperatures ranging from r.t. to 1200°C. Pristine and heated samples will be analysed by X-ray powder diffraction, FESEM and TEM. The effects of the thermal modifications on toxicologically relevant asbestos reactivity will be evaluated by quantifying carbon- and oxygen-centred, namely ¿OH), radicals. The expected outcomes will be useful for asbestos inertization studies as we expect that morphology and surface reactivity, beyond crystallinity, should be considered when proving that a thermally inactivated asbestos-containing material is safe.

ERC
PE10_10, PE10_11, LS7_9
Keywords:
MINERALOGIA AMBIENTALE, CRISTALLOCHIMICA, CRISTALLOGRAFIA

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