以十六烷基三甲基溴化铵为模板剂,通过水解钛酸正丁酯合成了介孔二氧化钛分子筛,探讨了合成条件的影响。采用X射线粉末衍射(XRD)、红外光谱(FT-IR)、透射电子显微镜(TEM)和N2吸附-脱附等技术对介孔二氧化钛的晶相、结构、形貌、比表面积和孔径分布进行了表征。实验结果表明:得到的介孔二氧化钛分子筛的孔径为4-4.3nm,用抽提的方法去除模板剂得到的介孔二氧化钛的比表面积比焙烧的要高。以甲基橙为模型污染物,检验了所合成介孔二氧化钛的光催化性质。 Mesoporous titania was synthesized by hydrolysis of n-butyl titanate with cetyltrimethylammonium bromide as template, and the effect of synthesis conditions was discussed. The crystal phase, structure, morphology, specific surface area and pore size distribution of mesoporous titania were characterized by X-ray powder diffraction (XRD), infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and N2 adsorption-desorption Characterization. The experimental results show that the mesoporous titania has a pore size of 4-4.3 nm, and the specific surface area of ​​the mesoporous titania obtained by removing the template by extraction is higher than that of the mesoporous titania. Using methyl orange as a model pollutant, the photocatalytic properties of the synthesized mesoporous titania were examined.