Synthesis, Characterization of Ag2s from AgCl Waste of Argentometry Titration with Heating Temperature Variations and Its Application as a Temperature Sensor Based on Negative Temperature Coefficient (NTC)

Synthesis of Ag2S from AgCl waste argentometric titration with heating temperature variations as a sensor has been done. This study aims to synthesize and examine the effect on crystal quality electrical characteristics based Negative Temperature Coefficient (NTC). synthesis was carried out by precipitation in water bath various temperatures 40°C, 60°C, 80°C. The success confirmed X-Ray Diffraction (XRD) typical peak 2θ standard at 29.07°, 31.60°, 36.97°, 37.81°, highest crystallinity obtained 60°C. Meanwhile, UV-Vis Diffuse Reflectance Spectroscopy (DRS UV-Vis) showed band gap corresponding (0.9-1.05 eV). Furthermore, powder made into pellets applied sensor. Then resistance value resulting were measured. best synthesized 60°C constant (B) sensitivity (α) values 2974 K −3.35%, respectively. indicated that had successfully synthesized, heated