摘要
以胶原纤维为模板合成了介孔TiO2-Al2O3二元复合氧化物纤维,并利用扫描电镜(SEM)、X射线衍射仪(XRD)、比表面孔隙分析仪、X光电子能谱(XPS)对该二元复合氧化物纤维进行了表征。结果表明所合成的介孔TiO2-Al2O3二元复合氧化物呈纤维状,较好地保留了胶原纤维的结构。当Ti/Al摩尔比为4.88:1时,TiO2-Al2O3二元复合氧化物纤维的平均孔径为7.4 nm,比表面积可达131.0 cm2/g,其中TiO2主要以锐钛矿相存在,Al2O3则以无定形态分散于TiO2晶体间。
Mesoporous TiO2 -Al2O3 binary composite oxide fiber was synthesized using collagen fiber as the template, and it was characterized using scanning electron microscope (SEM), X ray diffraction (XRD), surface area and porosity analyzer (BET) and X -ray photoelectron spectroscopy (XPS). It can be observed that the me- soporous TiO2 - Al2O3 is in fibrous state, and the structure of collagen fiber is well preserved. When the Ti/AI molar ratio is 4.89 : 1, the average pore diameter of TiO2 - Al2O3 binary composite oxide fiber is 7.4 nm and its surface area is 131.0 cm^2/g. In addition, it is found that the TiO2 is in anatase phase, while the Al2O3 is in amorphous phase and is dispersed among the TiO2 crystals .
出处
《绵阳师范学院学报》
2011年第11期55-59,共5页
Journal of Mianyang Teachers' College
基金
国家自然科学基金(21176161)
全国百篇优秀博士论文作者专项基金(FANEDD 200762)