Biossensores e Bioeletrônica

Green Synthesized Zinc Oxide Nanoparticles and Evaluation of their Use in Nanoelectronics Gas Sensing Result and Performance

Abstract

Dayanand B Jadhav, Rajendra D Kokate

Highly stable, eco-friendly ZnO nanoparticles synthesized by an easy and cost-effective plant (Aloe barbadensis miller gel as crystal growth modifier) mediated synthesis route. The synthesized ZnO nanoparticles of average particle size 70 nm-90 nm. LPG sensing properties were systematically investigated. The ZnO nanoparticles exhibited outstanding gas sensing characteristics like higher gas response (~500 ppm LPG gas at 350°C), the reaction time (~3 sec), recovery time (~35 sec), excellent repeatability and good selectivity. Structural, morphological and phase conformation characteristics are measured using XRD, EDS, FESEM, TEM and FTIR. This work provides a completely unique green approach to synthesize ZnO nanoparticles for the LPG sensing application.