Fe_2O_3-CPs-TiO_2纳米复合材料的制备、表征及其光催化性能

Preparation and Characterization of Fe_2O_3-CPs-TiO_2 Nanocomposites and Its Photocatalytic Property

以苯乙烯单体,TiCl4和Fe3O4为原料,采用两步合成法合成Fe2O3-CPs-TiO2纳米复合材料,并通过UV-Vis、FT-IR、XRD、SEM等技术进行了表征。结果表明,CPs的共轭链上有C=O;且TiO2与CPs间以Ti-O-C键结合;复合微粒的平均粒径为80 nm,复合微粒的小尺寸和共轭键上极性基团的存在有利于Ti-O-C、Fe-O-C键的形成。催化性实验结果表明:在自然光下,该纳米复合材料在45 min内可使染料MB溶液完全脱色。

Through a two-step preparation method with styrene monomer, TIC14 and Fe3O4, Fe2O3- CPs-TiO2 complex nanoparticles were successfully prepared and characterized by SEM, XRD, UV-Vis and FT-IR techniques. IR result showed the groups of C=O and C-O-Ti; from its SEM, the average size was about 80nm, the nanosize and the polar groups are advantageous for strong interaction of Fe2O3, TiO2 and CPs. The photocatalytie experiments indicated that under the irradiation of natural light, the complex nanomaterial could fully decolorize dye MB in 45 min.