Abstract

AbstractThe present study is aimed to tailor the structure of zircon (ZrSiO4) for potential application in hard tissue replacements. In this context, zircon (Zr,Ti)1−x(Dy)x(SiO4)1−x(PO4)x type solid solution has been formed through a simple sol–gel technique. Zircon formation is induced by the Ti4+ substitution, whereas the progressive addition of Dy3+/PO43− led to their accommodation at the resultant lattice sites. The maximum occupancy limit of Dy3+/PO43− is determined as 20 wt.% beyond, in which the ZrSiO4 structure is destabilized to enable the exclusion of Ti4+ and Zr4+ and subsequently yields ZrTiO4 trace alongside the crystallization of DyPO4. Dy3+ accommodation facilitated the improved absorption and emission (blue [483 nm] and yellow [576 nm]) phenomena and further the paramagnetic features are also induced in the resultant ZrSiO4.

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