Solar energy utilization in degradation of 2-chlorophenol by immobilized photosensitizers |
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Authors: | D Gryglik J S Miller S Ledakowicz |
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Affiliation: | Department of Bioprocess Engineering, Faculty of Process and Environmental Engineering, Technical University of ?ód?, ul. Wólczańska 213, 93005 ?ód?, Poland |
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Abstract: | The aim of this work was to examine photosensitized oxidation of 2-chlorophenol using solar light. Rose bengal, methylene blue and chlorin e6 were used as sensitizers. They were immobilized in the silane gel and used in the form of a thin film covering glass plates. In some lab-scale experiments xenon arc lamps were used as solar simulators.The influence of various experimental conditions (light intensity, the amount of sensitizer, oxygen concentration) on the rate of 2-chlorophenol degradation was investigated. The obtained results indicate a possibility of the application of solar radiation in the middle latitudes for wastewater treatment. The use of silane gel as a carrier for the sensitizer enables the pollutants elimination at a higher rate than in a homogenous system. The stability and durability of immobilized sensitizers were also studied. |
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Keywords: | Photosensitized oxidation Solar radiation Singlet oxygen 2-Chlorophenol Rose bengal Methylene blue Chlorin e6 Sol– gel technique |
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