Abstract
Submicrometre-sized EuPO4 hollow spheres were synthesised by utilising the colloidal spheres of Eu(OH)CO3 as the sacrificial template, for the first time. The EuPO4 hollow spheres were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and photoluminescence, respectively. The EuPO4 hollow spheres exhibit red colour emission from 5D0–7F J (J = 1, 2, 3, 4) transitions of the Eu3+ ions. The obtained EuPO4 hollow spheres may have potential applications in cell biology, drug release, diagnosis, due to the high chemistry stability and luminescence function.
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