A Statistical Experimental Design to Degradation of Aqueous Methyl Orange Solution with Photocatalyst of Ti-TiO₂ Nanotube Array

Abstract:

A statistical experimental design to the degradation of aqueous methyl orange, by using the Ti/TiO₂ nanotube array photocatalyst, under UV irradiation, was investigated. Concentration of methyl orange(5mg/L,15mg/L,25mg/L), catalytic time (0.5h,1h,1.5h) and UV light source (6w,11w,15w) were selected as major operating variables. To investigate the effects of variables to degradation rate, the statistical experiment of Box-Behnken design(BBD) and Response Surface methodology(RSM) was employed. Regression analysis showed that the experiment data accorded with the predicted values obtained from quadratic regression equation in BBD with R-Squared of 0.9806 and F-value of 39.34.

• Periodical: Advanced Materials Research (Volumes 479-481)
• Pages: 221-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.479-481.221
• Online since: February 2012
• Authors: Ying Cao Xu, Hong You
• Keywords: Methyl Orange (MO), Photocatalyst, Response Surface Methodology (RSM), Ti/TiO₂ Nanotube Array

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