Preparation of iodine doped titanium dioxide to photodegrade aqueous bisphenol A under visible light |
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| Affiliation: | 1. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China;2. Parchn Sodium Isovitamin C Co. Ltd., Dexing 334221, PR China;3. Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing 334221, PR China;4. Department of Pharmaceutical, Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, PR China;5. School of Biotechnology, Jiangnan University, Wuxi 214122, PR China;1. College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, PR China;2. Korean Bioinformation Center (KOBIC), Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea;3. Department of Bioinformatics, University of Sciences and Technology, Daejeon 305-350, Republic of Korea;4. Zhejiang Provincial Key Laboratory of Applied Enzymology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, PR China;1. School of Nuclear Science and Technology, Xi''an Jiaotong University, No. 28 Xianning West Road, Xi''an, Shaanxi 710049, PR China;2. Shanghai Nuclear Engineering Research & Design Institute, 29 Hongchao Road, Shanghai 200233, PR China;3. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2200 Bonisteel, Ann Arbor, MI 48109, USA;1. Department of Mining and Minerals Engineering, Holden Hall, Virginia Tech, 445 Old Turner ST, Blacksburg, VA 24061, United States;2. Laboratory for Interdisciplinary Statistical Analysis, Hutcheson Hall, Virginia Tech, 250 Drillfield DR, Blacksburg, VA 24061, United States;3. Department of Mining Engineering, University of Kentucky, 504 Rose ST, 230 Mining and Minerals Resources Building, Lexington, KY 40506, United States;4. Department of Chemistry, Hahn Hall, Virginia Tech, 900 West Campus DR, Blacksburg, VA 24061, United States |
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| Abstract: | Highly photoactive iodine-doped titanium dioxide (I-doped TiO2) photocatalysts were synthesized to degrade aqueous bisphenol A (BPA) under irradiation by visible light and sunlight. The band gap energies of TiO2 and I-doped TiO2 (I/Ti mole ratio = 0.5%) were 3.01 and 3.04, and the BPA photodegradation rate constants were 1.61, and 5.11 h−1, respectively. The most probable reaction mechanism was proposed to involve IO4− and IO3− as electron acceptors that generate an inductive effect, increasing the photocatalytic efficiency of TiO2. Results indicated that I-doped TiO2 not only acted favorably as a photocatalyst, but also exhibited considerable mineralization effects. In addition, a recycling test after ten experiments demonstrated the stability and reusability of the photocatalyst. |
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| Keywords: | Iodine doped Photocatalysis Sunlight Bisphenol A |
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