Volume 2, Issue 3 (6-2017)                   J. Hum. Environ. Health Promot 2017, 2(3): 154-160 | Back to browse issues page


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Nabavi N, Peyda M, Sadeghi G. The Photocatalytic Kinetics of the Methyl Orange Degradation in the Aqueous Suspension of Irradiated TiO2. J. Hum. Environ. Health Promot. 2017; 2 (3) :154-160
URL: http://zums.ac.ir/jhehp/article-1-115-en.html
1- Department of Environmental Health Engineering, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran.
Abstract:   (1579 Views)
Background: In the present study, the photocatalytic (TiO2/UV) batch process has been used for the methyl orange (MO) degradation.
Methods: In the catalyst range from 0.25 to 1.5 g/L, the optimum concentration of TiO2 was found to be 0.5 g/L. The kinetic behavior of MO degradation has been evaluated using the non-linear form of pseudo-first order and pseudo-second order models.
Results: The goodness of the fit was evaluated using the correlation coefficient R2 value and the mean square error (MSE) function.
Conclusion: The kinetic studies revealed that the pseudo-first order model (k1 = -0.0593 min-1) is more suitable to fit the experimental data (R2 = 0.957, MSE = 0.00271) of MO degradation.

 
Full-Text [PDF 433 kb]   (468 Downloads)    
Type of Study: Research Article | Subject: Public Health
Received: 2017/04/24 | Accepted: 2017/05/31 | Published: 2017/06/20

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