Abstract
Herein, we report the successful synthesis, characterization and fabrication of high sensitive, reproducible and reliable 4-nitrophenol chemical sensor based on Sn-doped ZnO nanoparticles. The Sn-doped ZnO nanoparticles were synthesized by facile hydrothermal process and characterized in terms of their morphological, structural and compositional properties. The morphological investigation revealed that the synthesized Sn-doped ZnO material possess nanoparticle shape which are grown in high density. The structural and compositional properties confirmed that the synthesized nanoparticles are well-crystalline pure Sn-doped ZnO. The synthesized nanoparticles were used as electron mediator to fabricate 4-nitrophenol chemical sensor which exhibited a high sensitivity of 129.05 mu A . mM(-1)cm(-2) and experimental detection limit of 0.50 mM. The observed results demonstrate that Sn-doped ZnO nanoparticles are potential material to fabricate high sensitive, reproducible and reliable chemical sensors.