Visible light photodegradation of dyes over mesoporous titania prepared by using chrome azurol S as template |
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| Authors: | Wen-Juan Gong Hui-Wang Tao Guo-Li Zi Xiao-Yun Yang Ya-Li Yan Bin Li Jia-Qiang Wang |
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| Institution: | 1. Department of Applied Chemistry, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, 650091, Kunming, People’s Republic of China
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| Abstract: | Mesoporous TiO2 with anatase crystalline structure (MTiO2/CAS) has been synthesized by using chrome azurol S (CAS, 2″,6″-dichloro-3,3′-dimethyl-4′-hydroxy-3″-sulfofuchson-5,5′-dicarboxylic acid) as template. It was characterized by X-ray diffraction, nitrogen adsorption/desorption, diffuse reflectance UV–visible and FT-IR spectrometry, and transmission electron microscopy. It was found that MTiO2/CAS had substantial photocatalytic activity in the degradation of methylthionine chloride, rhodamine B, gentian violet, safranin T, methyl violet, and fuchsine basic whereas Degussa P25 (P25) had negligible photodegradation yield (<6%) under visible light irradiation. |
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