Synthesis and properties of Ag2S-Hydroxyapatite nanocomposite materials

Oulguidoum, Abdeladim; Labrag, J.; Abbadi, M.; Es-saidi, I.; Bekkali, C. El; Laghzizil, A.

doi:10.1016/j.matpr.2022.03.149

Cited by 2 publications

(2 citation statements)

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“…Meanwhile, hydrothermal and sonochemical preparations require a vacuum and high temperature, and sol-gel takes a long time. In this study, the precipitation method will be employed because the preparation is easy, can be done at low temperatures of 25-90°C [8], has good composition control [9], and can be prepared in situ directly on the titration waste.…”

Section: Introductionmentioning

confidence: 99%

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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)

et al. 2022

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Synthesis of Ag2S from AgCl waste of argentometric titration with heating temperature variations as a temperature sensor has been done. This study aims to synthesize Ag2S and examine the effect of heating temperature on crystal quality and electrical characteristics as a temperature sensor based on the Negative Temperature Coefficient (NTC). Ag2S 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 Ag2S 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 Ag2S (0.9-1.05 eV). Furthermore, the Ag2S 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 Ag2S synthesized at a temperature of 60°C with constant (B) and sensitivity (α) values of 2974 K and −3.35%, respectively. This indicated that Ag2S had been successfully synthesized, and the best sensor quality was obtained from Ag2S heated at a temperature of 60°C.

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Section: Introductionmentioning

confidence: 99%

“…Several dissolution/precipitation processes of Ag2S have been done successfully from natural phosphates for photocatalyst applications [9]. Precipitation of Ag2S with L-cysteine (as a source of sulfur) [10], Ag and sulfurization of H2S with Ag-Ag2S nanohybrid NHS [11].…”

Section: Introductionmentioning

confidence: 99%