使用多步流动系统快速连续制备聚酰亚胺细颗粒包裹的TiO纳米颗粒及其应用。
Rapid and continuous fabrication of TiO nanoparticles encapsulated by polyimide fine particles using a multistep flow-system and their application.
作者信息
Ishizaka Takayuki, Chatterjee Maya, Kawanami Hajime
机构信息
Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST) 4-2-1 Nigatake, Miyagino-ku Sendai Miyagi 983-8551 Japan
Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
出版信息
RSC Adv. 2021 Jan 7;11(4):2083-2087. doi: 10.1039/d0ra09810h. eCollection 2021 Jan 6.
PI fine particles encapsulating a large number of TiO nanoparticles (PI FPs/TiO NPs) were successfully fabricated rapidly and continuously by the emulsion re-precipitation method using a multistep flow synthetic system. The fabricated material, PI FPs/TiO NPs, was spherical in structure with a diameter of 214 nm, and the mean size of TiO NPs was 5.2 nm. Line scan elemental analysis with SEM-EDX showed that the TiO NPs were disproportionately embedded near the surface of the PI FPs. UV-vis transmission spectra revealed high UV shielding efficiency of the PI FPs/TiO NPs as the NPs are located near the surface.
通过使用多步流动合成系统的乳液再沉淀法，成功快速且连续地制备了包裹大量TiO纳米颗粒的聚酰亚胺细颗粒（PI FPs/TiO NPs）。所制备的材料PI FPs/TiO NPs结构呈球形，直径为214nm，TiO NPs的平均尺寸为5.2nm。利用扫描电子显微镜-能谱仪（SEM-EDX）进行的线扫描元素分析表明，TiO NPs不成比例地嵌入在PI FPs的表面附近。紫外-可见透射光谱显示，由于纳米颗粒位于表面附近，PI FPs/TiO NPs具有很高的紫外线屏蔽效率。
Zotero 插件