Humidity suppression in Bi2O3/SWCNT nanohybrid structures for room temperature acetone detection

In this research, a simple chemical procedure was employed for the formation of Bi2O3 nanoparticles/SWCNT nanohybrids to construct an acetone gas sensor that can tolerate the effect of humidity at room temperature. The morphological structure properties of the Bi2O3/SWCNT nanohybrids were analyzed with X-ray diffraction, transmission electron microscopy, and other surface area measurements. The humidity effect was investigated and carefully analyzed at room temperature (25 degrees C) through resistance and conductivity measurements. The nanohybrids displayed a stable and linear response toward acetone under conditions of increasing humidity (from 0 to 90%) and demonstrated better linearity in acetone response than pure Bi2O3 and pure SWCNTs.

Automated summary

In this research, Bi2O3 nanoparticles/SWCNT nanohybrids were synthesized using a simple chemical procedure to construct a room temperature acetone gas sensor that can tolerate humidity. The morphological structure properties of the nanohybrids were analyzed using X-ray diffraction, transmission electron microscopy, and other surface area measurements. The effect of humidity was investigated through resistance and conductivity measurements, and the nanohybrids demonstrated a stable and linear response to acetone under increasing humidity conditions (0-90%), outperforming pure Bi2O3 and pure SWCNTs.