Sapienza Research Calls - GEO06
PRINCIPAL INVESTIGATOR: Giovanni B. ANDREOZZI
TITLE: Campi di stabilità e prodotti di reazione dei borosilicati axinite e tormalina
FUNDING AGENCY: Progetti di Ricerca Piccoli, Università La Sapienza, Roma
START DATE: marzo 2022
END DATE: marzo 2023
ABSTRACT:
PRINCIPAL INVESTIGATOR: Paolo BALLIRANO
TITLE: Thermal inertization of amphibole asbestos modulates Fe topochemistry and surface reactivity
FUNDING AGENCY: Università degli Studi di Roma "la Sapienza" Progetti di Ateneo Piccoli 2020
START DATE: dicembre 2020
END DATE: dicembre 2021
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 inertisation 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.