Abstract
Mesoporous nano-hydroxyapatite (mn-HAP) was successfully synthesized via a novel micelle-templating method using lauryl dimethylaminoacetic acid as zwitterionic surfactant. The systematic use of such a surfactant in combination with microwave energy input enables the precise control of pore size in a narrow-size distribution range (36nm). The comparison of the specific surfaces area of dried and calcined mn-HAP (87m2g−1 and 55m2g−1, respectively) illustrates the fundamental role of zwitterionic surfactant in the synthesis of mn-HAP. The controlled growth of hydroxyapatite is confirmed by means of thermogravimetric analyses (TGA), Fourier transform infrared (FT-IR) and Raman spectroscopy, powder X-ray diffraction (XRD), solid-state NMR, N2 adsorption–desorption measurements (BET), and transmission electron microscopy (TEM) techniques.
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