Photocatalytic activity of TiO2 prepared by adding polyethyleneglycol |
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| Authors: | Chao-Yin Kuo and Han-Yu Lin |
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| Affiliation: | (1) Department of Safety Health and Environmental Engineering, National Yunlin University of Science and Technology, 123, Sec. 3, University Rd., Douliou, Yunlin, 640, Taiwan;(2) Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Yunlin, Taiwan |
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| Abstract: | TiO2 was produced by the sol-gel method with the addition of polyethyleneglycol (PEG) to study the effects of the molecular weight and the addition percentage of PEG. Bisphenol A (BPA) degradation rate constants were highest as 3.07, 4.02 and 4.23 h−1 at PEG addition percentages of 10%, 5% and 0.5%. After 12 h reaction, the total organic carbon (TOC) reductions in UV/TiO2, UV/TiO2/PEG(200, 10%), UV/TiO2/PEG(600, 5%) and UV/TiO2/PEG(3500, 0.5%) systems were 44%, 24%, 19% and 23%, in order. The results demonstrated that adding an appropriate percentage of PEG to the TiO2 preparation processes increased the BPA degradation and TOC reduction. |
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| Keywords: | Bisphenol A photocatalytic activity TiO2 polyethyleneglycol |
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