采用溶胶-微波水热法使TiO2前驱体微球表面形成自组装介孔结构,得到F掺杂的介孔TiO2微球.利用SEM、TEM、XRD、XPS、PL对样品进行表征,并对其生长机理进行简要的分析.结果表明,微球的直径约为400nm,由于NaF的加入,纳米晶粒(12±0.5)nm和介孔(约10nm)的形成使粗糙度明显增强;F的掺杂没有引起新的萤光现象,但F的掺杂能够增加TiO2微球PL光谱的强度.PL谱表明样品在396和464nm范围内有很强的蓝光发射特性,这与样品的微观结构有很大关系.
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