Structural Characterization of Low-Sr-Doped Hydroxyapatite Obtained by Solid-State Synthesis

被引：14
|
作者：
Baldassarre, Francesco [1 ]
Altomare, Angela [1 ]
Mesto, Ernesto [2 ]
Lacalamita, Maria [2 ]
Dida, Bujar [3 ]
Mele, Altin [4 ,5 ]
Bauer, Elvira Maria [6 ]
Puzone, Massimo [7 ]
Tempesta, Emanuela [8 ]
Capelli, Davide [9 ]
Siliqi, Dritan [1 ]
Capitelli, Francesco [9 ]
机构：
[1] Natl Res Council CNR, Inst Crystallog IC, Via G Amendola 122-O, I-70126 Bari, Italy
[2] Univ Bari Aldo Moro, Dept Earth & Environm Sci, Via E Orabona 4, I-70125 Bari, Italy
[3] Polytech Univ Tirana, Fac Math Engn & Phys Engn, Dept Chem, Tirana 1001, Albania
[4] Ivodent Acad, Ctr Tech Studies, Rruga Prokop Myzeqari 10, Tirana 1016, Albania
[5] Univ Tirana, Fac Nat Sci, Dept Chem, Blvd Zog I 25-1, Tirana 1001, Albania
[6] Natl Res Council CNR, Inst Struct Matter ISM, Via Salaria Km 29-300, I-00016 Monterotondo, Italy
[7] ENEA Trisaia Res Ctr, SS 106 Jon Km 419-500, I-75026 Rotondella, Italy
[8] Natl Res Council CNR, Inst Environm Geol & Geoengn IGAG, Via Salaria Km 29-300, I-00016 Monterotondo, Italy
[9] Natl Res Council CNR, Inst Crystallog IC, Via Salaria Km 29-300, I-00016 Monterotondo, Italy
来源：
CRYSTALS | 2023年 / 13卷 / 01期
关键词：
hydroxyapatite; strontium; solid-state synthesis; PXRD; FTIR; Raman; CRYSTAL-STRUCTURE; SUBSTITUTED HYDROXYAPATITE; RIETVELD REFINEMENT; CALCIUM; APATITE; SERIES;
D O I：
10.3390/cryst13010117
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Strontium-substituted Ca-10(PO4)(6)(OH)(2) hydroxyapatite (HAp) powders, with Sr wt% concentrations of 2.5, 5.6 and 10%, were prepared by a solid-state synthesis method. The chemical composition of the samples was accurately evaluated by using inductively coupled plasma (ICP) spectroscopy. The morphology of the samples was analyzed via optical microscopy, while structural characterization was achieved through powder X-ray diffraction (PXRD) and infrared (FTIR) and Raman spectroscopy. The PXRD structural characterization showed the presence of the Sr dopant in the Ca1 structural site for HAp with a lower Sr concentration and in the Ca2 site for the sample with a higher Sr concentration. FTIR and Raman spectra showed slight band shifts and minor modifications of the (PO4) bands with increasing the Sr doping rate.
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页数：16
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