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采用具有八面体形貌的氧化亚铜为模板,制备了聚苯胺/TiO2(PANI/TiO2)微/纳米球,TiO2纳米粒子很均匀地分散在聚苯胺中.研究了不同TiO2/苯胺(TiO2/ANI)摩尔比对PANI/TiO2复合物的结构、形貌和电学性能的影响.实验结果表明,随着TiO2/ANI摩尔比的增加,PANI/TiO2复合物的直径逐渐减小,当TiO2/ANI摩尔比为0.16时,复合物的平均直径为373nm,而当TiO2/ANI摩尔比增加到1.6时,复合物的平均直径降到80nm.PANI/TiO2复合微/纳米球的电导率随着TiO2/ANI摩尔比的增加先升高后降低,当TiO2/ANI摩尔比达到1.6时,电导率由10-4S/cm提高到100S/cm,达到最大值.产物的形貌和结构分别采用扫描电镜、透射电镜、红外吸收光谱和X-射线衍射等手段进行了表征.
Polyaniline / TiO2 (PANI / TiO2) micro / nano spheres were prepared by using cuprous oxide with octahedral morphology as template, and TiO2 nanoparticles were uniformly dispersed in polyaniline.The effects of different TiO2 / ANI) molar ratio on the structure, morphology and electrical properties of PANI / TiO2 composites.The experimental results show that the diameter of PANI / TiO2 composites decreases with the increase of molar ratio of TiO2 / ANI, The average diameter of the composites was 373 nm when the molar ratio was 0.16, while the average diameter of the composite decreased to 80 nm when the molar ratio of TiO2 / ANI was increased to 1.6. The conductivity of PANI / TiO2 composite micro / The increase of molar ratio of ANI first increased and then decreased, and when the molar ratio of TiO2 / ANI reached 1.6, the conductivity increased from 10-4S / cm to 100S / cm, reaching the maximum value.The morphology and structure of the product were characterized by scanning electron microscopy, TEM, IR and X-ray diffraction.