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通过溶胶-凝胶法制备了TiO2纳米粒子,并用十六烷基三甲基溴化铵(CTAB)/正己醇/水反胶束体系作为微反应器合成了聚吡咯(PPy)/TiO2纳米复合粒子。利用透射电镜(TEM)、扫描电镜(SEM)、红外光谱仪(FTIR)、X-射线衍射仪(XRD)对纳米复合粒子进行了表征。实验结果表明,PPy/TiO2球形粒子的平均粒径为150～200nm,在复合粒子中球形粒子占据优势,并有团聚的趋势。FTIR和XRD结果显示纳米复合材料由PPy和TiO2组成,无机复合粒子只有部分形成晶体。从该研究结果中可以看出,反胶束法可以有效地应用于有机-无机纳米复合材料的制备。
The TiO2 nanoparticles were prepared by the sol-gel method and the polypyrrole (PPy) / TiO2 nanocomposite was synthesized by using CTAB / n-hexanol / water reverse micelle system as a microreactor particle. The nanocomposite particles were characterized by TEM, SEM, FTIR and XRD. The experimental results show that the average particle size of PPy / TiO2 spherical particles is 150 ~ 200nm, the spherical particles in the composite particles occupy the dominant position, and there is a tendency of agglomeration. FTIR and XRD results showed that the nanocomposites consisted of PPy and TiO2, and only some of the inorganic composite particles formed crystals. It can be seen from the results of this study that the reverse micelle method can be effectively applied to the preparation of organic-inorganic nanocomposites.