General Information
    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Dr. Eldin W. C. Lim
    • Executive Editor: Mr. Ron C. Wu
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Editor-in-chief
Dr. Eldin W. C. Lim
Dept. of Chemical and Biomolecular Engineering,
National University of Singapore, Singapore
IJCEA 2016 Vol.7(4): 273-276 ISSN: 2010-0221
doi: 10.18178/ijcea.2016.7.4.588

Investigation of Intermediate Compounds of Phenol in Photocatalysis Process

D. T. T. Trinh, S. T. T. Le, D. Channei, W. Khanitchaidecha, and A. Nakaruk
Abstract—Determining the degradation mechanism of phenol under illumination of titanium dioxide (TiO2) is main task in this present work. The experiment carried out with 100 ppm of phenol solution and 0.9 g/L TiO2 under UV-C light. The COD and UV-Vis measurement were applied in the present work to evaluate the efficiency of phenol removal. The results showed that photocatalysis removed effectively phenol from water after 24 hours of UV-C illumination. In the first 16 hours, there was a slight decrease in the COD value. However, it decreased dramatically after 24 hours of illumination. Similarly, the result from UV-Vis spectrophotometer also showed the same reduction of phenol peak. These proved that the photocatalytic degradation of phenol include two main phases. Phenol was transformed to by-products in the intermediate compound phase. Subsequently, these intermediate compoundss were removed from water under the form of carbon dioxide and water in the mineralization phase. Therefore, it is necessary to identify intermediate phase of phenol photodegradation in the further work.

Index Terms—Phenol, titanium dioixde, photodegradation, intermediate compounds.

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

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Cite: D. T. T. Trinh, S. T. T. Le, D. Channei, W. Khanitchaidecha, and A. Nakaruk, "Investigation of Intermediate Compounds of Phenol in Photocatalysis Process," International Journal of Chemical Engineering and Applications vol. 7, no. 4, pp. 273-276, 2016.

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