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以P123为模板剂,采用溶胶-凝胶的溶剂热合成方法制备了H3PW12O40掺杂TiO2介孔材料H3PW12O40/TiO2.利用紫外可见漫反射吸收光谱(UV-vis/DRS)、X射线粉末衍射(XRD)、N2吸附和透射电子显微镜(TEM)手段对所制备的材料进行结构表征,罗丹明B(RB)为模型污染物评价其光催化性能.结果表明,所制备的介孔材料具有锐钛矿与板钛矿复合的晶型结构、大的BET比表面积和孔径均匀分布的介孔结构.光催化实验表明,H3PW12O40/TiO2可将罗丹明B完全矿化.
H3PW12O40-doped TiO2 mesoporous material H3PW12O40 / TiO2 was prepared by sol-gel solvothermal synthesis using P123 as a template. UV-vis / DRS, XRD ), N2 adsorption and transmission electron microscopy (TEM) were used to characterize the photocatalytic activity of the prepared material. Rhodamine B (RB) was used as a model pollutant to evaluate its photocatalytic activity. The results showed that the prepared mesoporous material possesses anatase With the brookite composite crystal structure, large BET specific surface area and uniform pore size distribution of the mesoporous structure.Photocatalytic experiments showed that, H3PW12O40 / TiO2 rhodamine B can be completely mineralized.