CAJ | 학술논문

利用水解法和热溶剂法分别制备了 TiO2微球.所得样品形貌及结构采用热场发射扫描电镜(TFE-SEM)、X射线衍(XRD)、氮气吸附-脱附等测试方法进行分析表征.结果表明:水解法和热溶剂法所制备的TiO2微球均为锐钛矿相,比表面积较高,分别为116.1 m2·g-1和165.1 m2·g-1,且粒径均匀、分散性良好.热溶剂法制备样品的均匀性和可重复性更佳.
이용수해법화열용제법분별제비료 TiO2미구.소득양품형모급결구채용열장발사소묘전경(TFE-SEM)、X사선연(XRD)、담기흡부-탈부등측시방법진행분석표정.결과표명:수해법화열용제법소제비적TiO2미구균위예태광상,비표면적교고,분별위116.1 m2·g-1화165.1 m2·g-1,차립경균균、분산성량호.열용제법제비양품적균균성화가중복성경가.
The monodisperse titania spheres are prepared by hydrolysis and solvothermal synthesis. The titania spheres are characterized by means of thermal-field emission scanning electron microcopy (TFE-SEM), X-ray diffraction (XRD) and nitrogen absorption-desorption technique. The results show that the spheres from both methods are pure anatase. BET surface area is about 116.1 m2·g-1 and 165.1 m2·g-1, respectively. The titania spheres possess narrow size distribution and excellent dispersibility. In terms of uniformity and reproducibility of the titania spheres, the solvothermal synthesis is found to be a better method.