<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

Kinetics of oxygen adsorption on ZnS nanoparticles synthesized by precipitation process

Department of Materials Engineering, Imam Khomeini International University, Qazvin, Iran

Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran

School of Chemistry, University College of Science, University of Tehran, Tehran, Iran

Research Center for Molecular and Cellular Imaging (RCMCI), Tehran University of Medical Sciences, Tehran, Iran

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

ZnS nanoparticles were synthesized through a one-step precipitation process. Effect of time and temperature on the formation reaction was investigated. The...

t [min] →	30	60	90	120	150	180	210	240
T [°C] ↓	30	60	90	120	150	180	210	240
70	A1	A2	A3(S)	–	A4	A5	A6	–
90	B1	B2	B3	B4	B5	–	–	B6

Kinetics of oxygen adsorption on ZnS nanoparticles synthesized by precipitation process

Article Category: Research Article

Data publikacji: 24 maj 2016

Zakres stron: 260 - 265

Otrzymano: 21 kwi 2015

Przyjęty: 19 sty 2016

DOI: https://doi.org/10.1515/msp-2016-0037

© 2016 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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Fig. 6

Experimental conditions of synthesizing samples A1 to A6 and B1 to B6.