本文通过氨水扩散共沉淀法，在可溶纤维素的调控作用下制备得到了纳米带状羟基磷灰石。在120℃下加热回流高浓度氯化钙溶液和纤维素，作为后续合成羟基磷灰石的原料溶液。随后将磷酸二氢钠溶液加入到含有溶解纤维素和Ca2＋离子原料溶液中，通过氨水扩散来提高溶液的 pH 值，从而引发羟基磷灰石从溶液中析出，反应一段时间后，收集析出样品。对照实验样品在不加纤维素条件下反应收集得到。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、原子力显微镜（AFM）、傅立叶变换红外仪（FT-IR）和X射线衍射仪（ XRD）分析了纤维素对HA晶体形貌和晶体结构的影响。结果显示，实验合成了超薄纳米带状羟基磷灰石晶体，该晶体的合成可能是因为纤维素分子杂化到了HA的晶体中。%Hydroxyapatite nano-belts were synthesized via an aqueous ammonia diffusion co-precipitation method in the presence of dissolved cellulose .For this purpose ,a high-concentration calcium chloride solution was used to reflux treat cellulose at 120 ( C to form feedstock solution for the subsequent synthesis of hydroxyapate ( HA ) .The sodium dihydrogen phosphate was added to the feedstock solution which contains soluble cellulose and Ca 2+ions.The reaction of HA precipitates was initiated by elevating pH via the diffusion and dissolution of ammonia .The precipitates were finally collected after keeping the reaction for a period of time and the samples obtained in the absence of any cellulose were used as a control .The influence of cellulose on the morphology and crys-tallinity of HA was investigated by means of scanning electron microscopy (SEM),transmission electron microscopy(TEM),atomic force microscopy ( AFM) ,Fourier transform infrared spectroscopy ( FT-IR) and X-ray powder diffraction ( XRD) analyses .The present results show that ultra-thin hydroxyapatite nano-belts were achieved ,probably due to the incorporation of cellulose molecules into HA lattices .
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