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Vol.3 , No. 1, Publication Date: Feb. 24, 2016, Page: 26-32
, Periwinkle Shell Ash and Snail Shell Ash (local catalysts), were used for the study. The catalysts were used to determine the most efficient catalyst needed for the degradation of ethylbenzene from aqueous solutions using UV from sunlight. The effect of various parameters such as catalyst loading, initial substrate concentration, pH, Oxidants and time variation were studied. The results of the study showed that the difference in percentage degradation between the four catalysts was statistically significant (ANOVA, p < 0.05). Titanium oxide was the best catalyst having the highest percentage degradation of 50%. Langmuir–Adsorption Isotherm was used to test the experimental data. The optimum conditions for the degradation of ethylbenzene initial concentration was found to be 100mg/l, pH 6.0 and titanium oxide catalyst dose of 2.0g/l. According to experimental data, the photocatalytic degradation of etylbenzene follows Pseudo–first order kinetics with a regression range of 0.979-0.983.&picture=http://www.aascit.org/aascit/decorators/img/journal/924.jpg)
| [1] | Ozogu A. N., Textile Division, National Research Institute for Chemical Technology, Zaria, Kaduda State, Nigeria. |
| [2] | F. A. Aisien, Department of Chemical Engineering, Faculty of Engineering, University of Benin, Benin City, Nigeria. |
| [3] | Udiba U. U., Environmental Technology Division, National Research Institute for Chemical Technology, Zaria, Kaduda State, Nigeria. |
| [4] | Chukwurah N. C., Dept of Chemical Engineering, School of Engineering Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria. |
Photocatalysis is an effective treatment method for the removal of toxic pollutants from industrial wastewater. In this research work, the photocatalytic degradation of ethylbenzene was studied in a batch slurry system using solar radiation. Four catalysts; Titanium oxide and Zinc oxide (commercial catalysts), Periwinkle Shell Ash and Snail Shell Ash (local catalysts), were used for the study. The catalysts were used to determine the most efficient catalyst needed for the degradation of ethylbenzene from aqueous solutions using UV from sunlight. The effect of various parameters such as catalyst loading, initial substrate concentration, pH, Oxidants and time variation were studied. The results of the study showed that the difference in percentage degradation between the four catalysts was statistically significant (ANOVA, p < 0.05). Titanium oxide was the best catalyst having the highest percentage degradation of 50%. Langmuir–Adsorption Isotherm was used to test the experimental data. The optimum conditions for the degradation of ethylbenzene initial concentration was found to be 100mg/l, pH 6.0 and titanium oxide catalyst dose of 2.0g/l. According to experimental data, the photocatalytic degradation of etylbenzene follows Pseudo–first order kinetics with a regression range of 0.979-0.983.
Keywords
Photocatalytic Degradation, Ethylbenzene, Titanium Dioxide, Periwinkle Shell, Langmuir-Hinshelwood Model
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