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中文摘要：
以二氧化钛（TiO2）和氢氧化钠（NaOH）为原料,经水热反应成功合成钛酸钠（Na2Ti3O7）晶体纤维。以合成的钛酸钠和五水硝酸铋（Bi（NO3）3·5H2O）为原料,NaOH为矿化剂,进行二次水热反应制备钛酸铋钠（Na0.5Bi0.5TiO3）粉体。通过X线衍射仪（XRD）和扫描电子显微镜（SEM）对反应制备的粉体进行物相分析,结果表明,通过二步水热反应,可制备出颗粒尺寸均匀的Na0.5Bi0.5TiO3聚集球。
英文摘要：
Sodium titanate（Na2Ti3O7）crystal fibers were synthesized by hydrothermal method using TiO2 and NaOH as raw materials.Then using Na2Ti3O7 and Bi（NO3）3·5H2O as raw materials,NaOH as mineralizer,Na0.5Bi0.5TiO3 powders was prepared successfully with two-step hydrothermal.The phase composition and particle morphology of the as-prepared powders were characterized by X-ray diffraction（XRD）and scanning electron microscopy（SEM）.Analysis results indicated that the uniformity spherical agglomerates of Na0.5Bi0.5TiO3 were successfully prepared by two-step hydrothermal.
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