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以四氟化钛为前驱物、P123为表面活性剂、柠檬酸为稳定剂、盐酸为酸性调节剂、氟化铵为添加剂,利用水热方法首次制备出暴露{111}面的截顶点四棱双锥锐钛矿多面体.通过XRD,SEM,TEM,HRTEM,SEAD和EDX对所制备的多面体的组成、结构和形貌进行了分析和表征.结果显示:柠檬酸和氟化铵的使用,有利于锐钛矿多面体的取向生长和{111}晶面的保留.同时研究发现,所制备的多面体在碱性和紫外光照条件下对亚甲基蓝(MB)具有很好的催化活性和降解效果,显示出潜在的应用价值.
P123 as surfactant, citric acid as stabilizer, hydrochloric acid as acid regulator, ammonium fluoride as additive, hydrothermal method for the first time to expose the {111} surface of the truncated quadrilateral Birefringent anatase polyhedron.The composition, structure and morphology of the prepared polyhedrons were analyzed and characterized by XRD, SEM, TEM, HRTEM, SEAD and EDX.The results showed that the use of citric acid and ammonium fluoride had Which is conducive to the orientation growth of the anatase polyhedron and the retention of the {111} crystal plane.At the same time, it was found that the prepared polyhedron has good catalytic activity and degradation effect on methylene blue (MB) in the alkaline and ultraviolet light conditions, Potential application value.