Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang 50271, Indonesia
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@article{JKSA40088, author = {Gunawan Gunawan and Sarahtrinita Megawati and Nor Basid Prasetya and Roni Adi Wijaya}, title = {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)}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {25}, number = {8}, year = {2022}, keywords = {Thermistor; Negative Temperature Coefficient (NTC); Semiconductor; Ag2S; AgCl waste}, abstract = {Synthesis of Ag 2 S from AgCl waste of argentometric titration with heating temperature variations as a temperature sensor has been done. This study aims to synthesize Ag 2 S and examine the effect of heating temperature on crystal quality and electrical characteristics as a temperature sensor based on the Negative Temperature Coefficient (NTC). Ag 2 S synthesis was carried out by precipitation in a water bath with various heating temperatures of 40°C, 60°C, and 80°C. The success of the synthesis was confirmed by X-Ray Diffraction (XRD) with a typical peak of 2θ from Ag 2 S standard at 29.07°, 31.60°, 36.97°, 37.81°, and the highest crystallinity was obtained at a heating temperature of 60°C. Meanwhile, UV-Vis Diffuse Reflectance Spectroscopy (DRS UV-Vis) showed a band gap corresponding to Ag 2 S (0.9-1.05 eV). Furthermore, the Ag 2 S powder was made into pellets and applied as a temperature sensor. Then the resistance value and the electrical characteristics of the resulting sensor were measured. The best resistance was obtained from Ag 2 S synthesized at a temperature of 60°C with constant (B) and sensitivity (α) values of 2974 K and −3.35%, respectively. This indicated that Ag 2 S had been successfully synthesized, and the best sensor quality was obtained from Ag 2 S heated at a temperature of 60°C.}, issn = {2597-9914}, pages = {292--299} doi = {10.14710/jksa.25.8.292-299}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/40088} }
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EFFECT OF CALCINATION TEMPERATURE VARIATION ON GREEN SYNTHESIS OF CADMIUM SULFIDE FOR CIPROFLOXACIN PHOTODEGRADATION
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