Photocatalytic Degradation of Chlorophenol Compounds using Poly Aromatic Star Copolymer

Choi, Jae-Woo; Chung, Seung-Gun; Cho, Kie-Yong; Baek, Kyung-Youl; Hong, Seok-Won; Kim, Dong-Ju; Yi, Sang-hyŏp

Photocatalytic Degradation of Chlorophenol Compounds using Poly Aromatic Star Copolymer

2012

This study investigated the encapsulation and photocatalysis of chlorophenol compounds in water using porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer. The chloride ions generated during photocatalytic process were identified and quantified. 2,4,6-Trichlorophenol, pentachlorophenol, and 2,4-dichlorophenol were satisfactorily decomposed in the photoreactor using porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer, with removal efficiencies of 2,454, 498, and 760 mg/g of porphyrin-(polystyrene-b-2-dimethylaminoethyl acrylate) star polymer. The half-life times reached around 30 min, with the exception of that for 2,4-dichlorophenol. The star polymer-impregnated porphyrin is a promising photocatalyst for the removal of chlorophenols.

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