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Kinetics of oxygen adsorption on ZnS nanoparticles synthesized by precipitation process

Ahmadi, R ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1515/msp-2016-0037
  3. Publisher: Walter de Gruyter GmbH
  4. Abstract:
  5. ZnS nanoparticles were synthesized through a one-step precipitation process. Effect of time and temperature on the formation reaction was investigated. The synthesized samples were characterized by X-ray diffraction (XRD), ultraviolet (UV) visible absorption and photoluminescence (PL) spectrophotometry. Based on XRD and UV-Vis data, the particles produced at 70 °C had a mean particle size of about 5 nm. Increasing time and temperature of the synthesis reaction resulted in photoluminescence intensification. PL spectroscopy helped understanding the adsorption kinetics of oxygen on ZnS nanoparticles during the precipitation synthesis process. Fabrication of ZnS structures with appropriate oxygen adsorption capacity was suggested as a means of PL emission intensity control
  6. Keywords:
  7. Adsorption ; Gas adsorption ; Nanoparticles ; Oxygen ; Particle size ; Photoluminescence ; Spectrophotometry ; Synthesis (chemical) ; X- ray diffraction ; Zinc sulfide ; Absorption and photoluminescence ; Adsorption kinetics ; Avrami models ; Precipitation process ; Precipitation synthesis ; Synthesis reaction ; UV-vis spectrophotometry ; ZnS nanoparticles ; Precipitation (chemical)
  8. Source: Materials Science- Poland ; Volume 34, Issue 2 , 2016 , Pages 260-265 ; 20831331 (ISSN)
  9. URL: https://www.degruyter.com/view/j/msp.2016.34.issue-2/msp-2016-0037/msp-2016-0037.xml