Volume No. 3 Issue No.: 3 Page No.: 763-772 Jan-Mar 2009

 

ACCELERATED SOLAR PHOTOCATALYTIC DEGRADATION OF PHENOL USING TITANIUM DIOXIDE

 

Hanuman Naik Sugali, Biraj Kr. Kakati and Anil Verma*

Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039, (INDIA)

 

Received on : October 29, 2008

 

ABSTRACT

 

In the present study, accelerated solar photocatalytic degradation of phenol by the simulated Sun light / (UV-light) using low cost TiO2 catalyst (anatase) was investigated. A photochemical reactor was developed using Sun simulated light source. The performance of the system was analyzed and optimized by studying the effect of TiO2 loading, phenol concentration, temperature, light intensity, suspended impurity and type of catalyst. It was found that the photocatalytic efficiency for phenol degradation was very high at 10 ppm as compared to 20, 30, and 40 ppm phenol concentration in water for the particular experimental set-up. The optimum TiO2 loading was found to be 1.0 g.L-1. g.L-1 More that 75% phenol was degraded at 1.0 g.L-1 of TiO2 loading at 10 ppm concentration of phenol. The reaction intermediates were negligible for the TiO2 loading and confirmed with chemical oxygen demand analysis.

 

Keywords : AOP, Photocatalyst, Phenol, Sun simulated light, Titanium dioxide.

 

 

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