Photocatalytic Degradation of Ethylene Dichloride in Water Using Nano TiO₂ Supported on Clinoptilolite as a Photocatalyst

Manouchehr Nikazar, Soheil Jalali Farahani, Mastaneh Reza Soltani

Chemical Engineering Department of Amirkabir University of Technology, Tehran, Iran.

DOI: 10.4236/ampc.2012.24B070                

Abstract

In this article one of the advanced oxidation processes (AOP) combined methods, photocatalyst /H₂O₂, is utilized in order to study photodegradation of ethylene dichloride (EDC) in water. Nano Titanium (IV) Oxide, supported on Clinoptilolite (CP) (Iranian natural zeolite) using solid-state dispersion (SSD) method for improvement of its photocatalytic properties. The results show that the TiO₂/Clinoptilolite (SSD) is an active photocatalyst. The effects of five important photocatalytic reaction parameters including the initial concentration of ethylene dichloride, the ratio of TiO₂/Clinoptilolite, the catalyst concentration, H₂O₂ concentration and pH in photodegradation of ethylene dichloride were examined. In this experiments, the design and also the optimum parameters were obtained by Taguchi Method, using Design Expert8^® software. Taguchi's L27 (5^3) orthogonal array design was employed for the experimental plan. Four parameters were found to be significant whereas, pH was found to be an insignificant parameter after conducting experiments. A first order reaction with K = 0.007 min-1 was observed for the photocatalytic degradation reaction.

Keywords

Photodegradation; Photocatalysts; TiO₂/Clinoptilolite; Ethylene Dichloride

Conflicts of Interest

The authors declare no conflicts of interest.

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