【摘要】 以硅酸钠、硫酸钛为原料,添加乙二醇单甲醚,采用沸腾回流水解法,制备出二氧化钛-二氧化硅复合光催化剂。讨论了二氧化钛-二氧化硅复合光催化剂的最佳制备条件,并用XRD、XPS、TEM、BET等手段对样品进行了表征。结果表明,所制备的二氧化钛-二氧化硅复合光催化剂,由锐钛矿型二氧化钛和无定型二氧化硅组成,粒径在10nm左右。更多还原

【Abstract】 Nanometer TiO₂-SiO₂ composite photo-catalyst is prepared by hydrolysis with boiling reflux from Na₂SiO₃ and (Ti(SO₄)₂,)which are as raw materials.The optimum preparing conditions of the TiO₂-SiO₂ composite photo-catalyst are discussed and the specimen is characterized by XRD,XPS,TEM and BET.The results show that the TiO₂-SiO₂ particles obtained are spherical and their sizes are about 10 nm,they are composed of anatase TiO₂ and amorphous SiO₂.更多还原