At higher temperatures, the surface of the TiO2 fibers was rough,

At higher temperatures, the surface of the TiO2 fibers was rough, which can increase their specific surface area and improve photocatalysis. However, when the temperature was too high, TiO2 is given priority to trend to transform to rutile phase from anatase phase, which is

detrimental for photocatalysis. The different nitriding atmospheres of preservation heating had different effects on the fibers. The effects of nitrogen in ammonia were better than those of nitrogen because ammonia activity is higher than nitrogen activity. However, nitrogen is more economical and environment-friendly than ammonia. Heat-treated fibers at 600°C are efficient catalysts for the photocatalytic degradation of MB. Acknowledgements The authors greatly appreciate the Fundamental Proteases inhibitor Research Funds for the Central Universities for financial support (grant nos. 2652013126 and 2652013051). References 1. Huang XH, Tang YC, Hu C, Yu HQ, Chen CS: Preparation and characterization of visible-light-active nitrogen-doped TiO 2 photocatalyst. J Environ Sci 2005,17(4):562–565. 2. Takeuchi M, Matsuoka M, Anpo M, Hirao T, Itoh N, Iwamoto N, Yamashita H: Photocatalytic decomposition of NO under visible light irradiation on the Cr-ion-implanted TiO 2 thin film photocatalyst. Catal BI 2536 supplier Lett 2000,67(2–4):135–137.CrossRef 3.

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