Novel, Low Cost and Fast Detection Sensor for Biogenic H2S Gas Based on Polyaniline/ZnO, CdO and CeO2 nanocomposites at Room Temperature

Screen printed electrode (SPE) is considering one of the most prospective techniques for sensing purposes due to its low cost, easy fabrication and reusability. It worthwhile use SPE as a sensor fast detection biogenic H2S gas which sign sulfate-reducing bacteria (SRB) existence. SRB presence first indicator in industrial sector that causes catastrophic environmental issue give time decision makers avoid their consequences. Polyaniline (PANI), PANI/MOx nanocomposites were prepared materials. The materials have been characterized by FT-IR, Raman spectroscopy GPC techniques. morphological properties determined using SEM HR-TEM. particle size distributions dynamic light scattering (DLS). Moreover, fabricated sensors also applied detector electrical resistance changes. data confirmed PANI doped with ZnO NPs has best performance compared other sensors.