Abstract This work studies the cationic surfactant effects (CTAB) on the morphology and particle size of the hydroxyapatite (HAp), using the microwave method keeping the pH, time and temperature constant. The obtained products were characterized using transmission electron microscopy, X-ray diffraction, FT-IR and EDS spectroscopy. TEM results showed that surfactant had great impact on size of hydroxyapatite. The smallest nanorods structures with mean size of 43.17 nm in diameter and 136.52 nm in length were obtained by using 0.45w% [in proportion of Ca and P precursors] of surfactant. XRD analysis confirmed the presence of hexagonal hydroxyapatite and showed the crystallite size dimensions by Rietveld analysis. FT-IR technique corroborated the HAp presence by characteristic vibrational modes and EDS spectroscopy displayed the Ca/P ratio in all the samples. This work could be taken into account as a base for composite biomaterials development for gas sensing and biomaterial applications.

中文翻译：

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微波HAp合成中高pH值的阳离子表面活性剂

摘要 本研究使用微波方法保持 pH、时间和温度恒定，研究了阳离子表面活性剂 (CTAB) 对羟基磷灰石 (HAp) 的形态和粒径的影响。使用透射电子显微镜、X 射线衍射、FT-IR 和 EDS 光谱对所得产物进行表征。TEM结果表明表面活性剂对羟基磷灰石的粒径影响很大。通过使用 0.45w% [Ca 和 P 前驱体的比例] 的表面活性剂获得了最小的纳米棒结构，其平均直径为 43.17 nm，长度为 136.52 nm。XRD 分析证实了六方羟基磷灰石的存在，并通过 Rietveld 分析显示了微晶尺寸。FT-IR 技术通过特征振动模式证实了 HAp 的存在，EDS 光谱显示了所有样品中的 Ca/P 比。这项工作可以作为气体传感和生物材料应用的复合生物材料开发的基础。