【摘要】 以我们研制的体块TiO2 多孔纳米固体为原料 ,通过强制交换方法 ,将罗丹明B (RhB)组装进TiO2 多孔纳米固体的孔道中制备了TiO2 /RhB复合材料 ,用扫描电子显微镜、压汞仪、红外吸收光谱和可见吸收光谱等方法对样品进行了表征 .测试结果表明 ,TiO2 多孔纳米固体的比表面积为 60 6m2 /g ,主要孔径分布在 5～ 13nm很窄的范围内 .另外 ,我们从实验上观察到了TiO2 多孔纳米固体在无光照的情况下对RhB具有催化降解作用 ,而且交换时间、交换温度等因素对这种降解作用有明显的影响 .更多还原

【Abstract】 Using bulk TiO 2 porous nanosolids and Rhodamine B (RhB) as the starting materials, TiO 2/RhB composite was synthesized by assembling RhB into the channels of TiO 2 porous nanosolids. The properties of the composite were characterized by scanning electron microscopy, mercury intrusion porosimetry, Fourier transformation infrared spectroscopy and visible light absorption spectroscopy. The results showed that the specific surface area and major pore radius distribution of TiO 2 porous nanosolids were 60.6 m 2/g and 5～13 nm, respectively. In addition, the catalytic effect of TiO 2 porous nanosolids on the degradation of RhB was also investigated in this paper. It was found that, the catalytic efficiency of TiO 2 porous nanosolids was affected by both temperature and time of exchange process.更多还原