Abstract
The present work deals with the detection of ammonia gas by using TiO2/Stilbite composites. It also presents the dielectric properties of Stilbite and it’s composites. The composites are prepared by using Stilbite as a main matrix and TiO2 metal oxide as a filler material with variable wt% via mechanical mixing method. The prepared composites material are characterized by XRD, FTIR technique. The XRD and FTIR pattern of composites ensure the presence of TiO2 in composites. The thick film of TiO2/stilbite composites prepared by using screen printing technique are used to detect ammonia gas. The sensing parameter such as operating temperature, response/recovery time, transient response and gas uptake capacity have been determined. In addition, dielectric properties of composites, in pellets form are studied. The sensitivity of ammonia gas sensing increasing as increase the TiO2 concentration in composites. In addition, dielectric constant of composites are also increases as function of TiO2 concentration.
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