Photocatalysis and wave-absorbing properties of polyaniline/TiO_2 microbelts composite by in situ polymerization method

摘要

Polyaniline (PANI)/TiO_2 composite is prepared by in situ polymerization of polyaniline on the surface of TiO_2 template obtained by the sol-gel process via cotton template. The TiO_2 microbelts are prepared by sol-gel method using the absorbent cotton as template for the first time. Then the TiO_2 microtubules are used as template for the preparation of polyaniline/TiO_2 composites. The structure, morphology and properties of the composites are characterized with scanning electron microscope (SEM), IR, Net-wok Analyzer. A possible formation mechanism of TiO_2 microtubules and polyaniline/TiO_2 composites has been proposed. The effect of the mol ratio of polyaniline/TiO_2 on the microwave loss properties and photocatalysis properties of the composites is investigated.