Synthesis, Structure, and Luminescent Properties of Europium-Doped Hydroxyapatite Nanocrystalline Powders

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Samples</td><td align="center"><svg height="10.7375" id="M25" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 34.700001 10.7375" width="34.700001" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.7375)">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑎</tspan>
<tspan style="font-size: 12.50px; " x="9.7398367" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.780226" y="0">𝑏</tspan>
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</svg>/deviation (nm)</td><td align="center"><svg height="7.1875" id="M26" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 7.3874998 7.1875" width="7.3874998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,7.1875)">
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</svg>/deviation (nm)</td><td align="center" rowspan="2">Doping concentration (%)</td></tr><tr><td align="left">JCPDS 9-0432</td><td align="center">0.9418</td><td align="center">0.6884</td></tr><tr><td align="left" colspan="4"><hr/></td></tr><tr><td align="left">HAp</td><td align="center">0.9417/0.0001</td><td align="center">0.6883/0.0001</td><td align="center">0</td></tr><tr><td align="left">Hap_E1</td><td align="center">0.9417/0.0001</td><td align="center">0.6883/0.0001</td><td align="center">1</td></tr><tr><td align="left">Hap_E2</td><td align="center">0.9416/0.0002</td><td align="center">0.6881/0.0003</td><td align="center">2</td></tr><tr><td align="left">Hap_E10</td><td align="center">0.9412/0.0006</td><td align="center">0.6879/0.0005</td><td align="center">10</td></tr><tr><td align="left">Hap_E20</td><td align="center">0.9409/0.0009</td><td align="center">0.6878/0.0006</td><td align="center">20</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Calculated lattice constants and the deviation for Eu:Hap, Ca<sub>10−<i>x </i></sub>Eu<i><sub>x</sub></i>(PO<sub>4</sub>)<sub>6</sub>(OH) with different <svg height="7.1624999" id="M23" style="vertical-align:-0.11285pt" version="1.1" viewbox="0 0 8.7250004 7.1624999" width="8.7250004" xmlns="http://www.w3.org/2000/svg">
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Journal of Nanomaterials

tab1

Table 1

Table 1: Synthesis, Structure, and Luminescent Properties of Europium-Doped Hydroxyapatite Nanocrystalline Powders 