Synthesis and Characterizations of Conductive Polymer-Metal Oxide Hybrid Nanocomposites Using V2O5, TiO2 and Polypyrrole
نویسندگان
1 Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
2 Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
3 Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
doi
10.22052/JNS.2024.02.021چکیده
Characterizations of conductive polymers can improve through their hybridization with other materials. In this work, an ultrasound-based method was employed to synthesize conductive polymer-metal oxide (CPMO) hybrid nanocomposites in the presence of pyrrole and different percentages of vanadium and titanium oxides. FESEM images indicated cubic-shape vanadium oxide and spherical-shape titanium oxide are distributed in polypyrrole matrix. Electrochemical impedance spectroscopy and direct measuring resistance were used to evaluate the electrical properties of the synthesized nanocomposites. The optimized CPMO hybrid nanocomposite (0.5 g vanadium oxide and 0.5 titanium oxide) displayed a relatively good electrical properties such as charge transfer resistance of 5.12 k Ω and resistance of 78.1 Ω.square–1. Also, the synthesized CPMO hybrid nanocomposite showed a good photocatalytic activity through degradation of methylene blue with a degradation rate constant of 16.1×10–3 min–1 and efficiency of 87.3 % and 120 min. The synergetic effects of vanadium oxide and titanium oxide in the synthesized nanocomposites improved their functional features.
