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Visible light photodegradation of rhodamine B over VDF/CTFE copolymer-templated crystalline mesoporous titania

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Abstract

Mesoporous TiO2 with anatase crystalline structure (MTiO2/F2319) has been synthesized by using vinylidene fluoride/chlorotrifluoroethylene copolymer (1:9 in mole, F2319) as template. The synthesized mesoporous titania samples were characterized by a combination of various physicochemical techniques, such as X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, and N2 adsorption/desorption. It was found that without any external doping, MTiO2/F2319 exhibited significantly higher photocatalytic activities for the degradation of rhodamine B (RhB) dye than P25 TiO2 under visible light irradiation. Furthermore, the UV-Vis absorption maximum of the dye solution exhibited a gradual hypsochromic shift due to de-ethylation and degradation of RhB dye.

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Acknowledgments

The authors thank the Natural Science Foundation of China (Project NSFC-YN U1033603, 20863009, 21063016,), Yunnan Province (Project 20008CD065), Specialized Research Fund for the Doctoral Program of Higher Education (200806730005), Program for Innovative Research Team (in Science and Technology) in University of Yunnan Province (IRTSTYN) the R&D Program of Kunming (11H-011101, 2011-15) for financial support.

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Authors and Affiliations

  1. Department of Applied Chemistry, The Universities’ Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Yunnan University, Kunming, 650091, People’s Republic of China

    Guoli Zi, Yi Wang, Kai Zheng, Huan Zhao, Fuzhi Wang, Wenjun Zhang, Zhiying Yan, Jiao He & Jiaqiang Wang

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  1. Guoli Zi
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  2. Yi Wang
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Correspondence to Jiaqiang Wang.

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Zi, G., Wang, Y., Zheng, K. et al. Visible light photodegradation of rhodamine B over VDF/CTFE copolymer-templated crystalline mesoporous titania. Res Chem Intermed 38, 2383–2391 (2012). https://doi.org/10.1007/s11164-012-0554-5

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