International Journal of Environmental Science and Development

Abstract—In the present work, mesoporous particles was produced by calcining vetiver leaves at 600°C. Then, it was coated by TiO2 using sol-gel method. The crystal structure of TiO₂ coated particle was investigated using X-Ray Diffraction (XRD) technique. The organic dye removal efficiency were examined using photodegradation of methylene blue (MB) under UV-A irradiation. The pure TiO₂ particle reached only 40% of organic dye removal in 6 hours of irradiation time. On the other hand, the TiO₂-coated mesoporous particles got >90% of organic dye removal in 6 hour of irradiation time. It can be said that the organic dye removal efficiency of TiO₂-coated particles was higher than pure TiO₂ particles. This outcomes suggested that the adding of produced mesoporous particles increased the efficiency of MB adsorption, leading to the improvement of photocatalytic activity.

Index Terms—Mesoporous particle, vetiver grass, titanium dioxide, organic dye.

S. T. T. Le and D. T. T. Trinh are with the Department of Civil Engineering, Naresuan Univesity, Thailand (e-mail: tttdang247@gmail.com, janetle.176@gmail.com).
D. Channei is with the Department of Chemistry, Faculty of Science, Naresuan University, Thailand (e-mail: duangdaoc@nu.ac.th).
W. Khanitchaidecha is with the Department of Civil Engineering, Faculty of Engineering, Naresuan University, Thailand (e-mail: wilawank1@gmail.com).
A. Nakaruk is with the Department of Industrial Engineering, Faculty of Engineering, Naresuan University, Thailand (e-mail: auppathamn@nu.ac.th).

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Cite: S. T. T. Le, D. T. T. Trinh, D. Channei, W. Khanitchaidecha, and A. Nakaruk, "Using of TiO₂-Coated Mesoporous Particles for Organic Dye Removal," International Journal of Environmental Science and Development vol. 7, no. 7, pp. 507-510, 2016.