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Title

Photocatalytic degradation of methylene blue dye over immobilized ZnO nanoparticles: Optimization of calcination conditions

Year: 1394
COI: JR_JAEHR-3-1_003
Language: EnglishView: 302
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Authors

Reza Darvishi Cheshmeh Soltani - Department of Environmental Health, School of Health, Arak University of Medical Sciences, Arak, Iran
Abbas Rezaee - Department of Environmental Health, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Reza Rezaee - Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
Mahdi Safari - Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran

Abstract:

In the present study, calcination conditions during the synthesis of zinc oxide nanoparticles were optimized using response surface methodology (RSM) based on central composite design (CCD). After that, the effect of the type of UV irradiation on the photocatalysis of methylene blue (MB) dye was studied based on the kinetic model obtained at optimum conditions. Analysis of variance (ANOVA) exhibited a reasonable high correlation coefficient between the predicted and experimental values (R2 = 0.95). For a decolorization efficiency of 90%, the optimum calcination temperature and calcination time were identified to be 459 °C and 3.65 h, respectively. According to the reaction rate constant (k), the time required for the removal of MB using UVC lamps (0.027 1/min) was shorter than that of UVA lamps (0.0098 1/min), indicating higher exciting potential of the UVC irradiation for the generation of hydroxyl radicals through photocatalysis.

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This Paper COI Code is JR_JAEHR-3-1_003. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/753803/

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Darvishi Cheshmeh Soltani, Reza and Rezaee, Abbas and Rezaee, Reza and Safari, Mahdi,1394,Photocatalytic degradation of methylene blue dye over immobilized ZnO nanoparticles: Optimization of calcination conditions,https://civilica.com/doc/753803

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Type of center: علوم پزشکی
Paper count: 659
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