Photocatalytic Degradation of 2,6-Dichlorophenol in Aqueous Phase Using Titania as a Photocatalyst

Sushil Kumar Kansal, Mani Chopra

University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India.

DOI: 10.4236/eng.2012.48055                

Abstract

The paper includes the studies on photocatalytic degradation of 2,6-DCP in aqueous phase using titania (PC-105) as a photocatalyst. The degradation experiments were carried out by irradiating the aqueous suspensions of the model compound in the presence of photocatalysts under UV light. The rate of degradation was estimated from residual concentration spectrophotometrically. Various parameters affecting the degradation process viz. catalyst dose, pH, initial substrate concentration and time were investigated in order to obtain their optimum values. The maximum degradation of 2,6-DCP was achieved with 1.25 g/L catalyst dose at pH-4. The disappearance of 2,6-DCP obeyed pseudo-first order kinetics and the rate constant value was calculated to be 4.78 × 10^-4s^-1.

Keywords

Photocatalysis; Dichlorophenol; Titania; UV Light; Degradation

Conflicts of Interest

The authors declare no conflicts of interest.

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