Laboratorio di diffrazione RX su polveri XRPD
Italiano
Diffrattometro automatico per polveri Bruker AXS D8 Advance, operante in geometria θ/θ in trasmissione su capillari, dotato di camera riscaldante fino a T 1000°C e rivelatore PSD VÅntec-1.
In situ X-ray powder diffraction
Thermally induced behavior of the K-exchanged erionite. A further step in understanding the structural modifications of the erionite group upon heating
Fibrous erionite is a naturally occurring zeolite considered to be highly carcinogenic upon inhalation, even more than crocidolite. Since no iron is typically present in erionite, its toxicity has been attributed to ion-exchanged Fe participating in Fenton chemistry. Recently, a study aimed at investigating possible fiber inactivation routes surprisingly showed that, despite having completely occluded all available pores with K ions, the erionite-Na sample preserved the property to upload Fe (II) within the structure.