Photoluminescence Based Fast Detection of Ammonia Gas Through TiO_2 Nanoparticles

摘要

TiO_2 nanoparticles can be produced by a variety of techniques ranging from simple chemical to mechanical to vacuum methods, including many variants of physical and chemical vapour deposition techniques. In the present research work we reported the highly dispersible Titanium dioxide nanoparticles were produced via a simple aqueous solution growth technique with ～54 nm Average grain size. The surface morphology of the material have been studied by using scanning electron (SEM) and atomic force microscopes (AFM). Using photoluminescence, interaction between ammonia gas and Titanium dioxide nanoparticles were also investigated. The material shows average significant increment in the PL intensity with no shifting in peak, which conform its tremendous applicability in optical gas sensor to detect ammonia gas (25-35 ppm) using photoluminescence.