Study on the Performance of F-Doped TiO2

doi:10.7517/j.issn.1674-0475.2007.03.223

Abstract

Abstract: F-doped TiO₂ photocatalyst was prepared by sol-gel method with NH₄F as dopant.The catalyst was characterized by XRD,XPS,and PL.It was found that the phase formation of rutile was suppressed by F-doping due to the formation of Ti-F ligand.Moreover,the surface defect of TiO₂ was increased while the binding energy of Ti2P was decreased by F-doping.It was also found that the surface OOH concentration was decreased by F-doping due to the F ions replacing Ti-OH bond.The results of photocatalytic reaction indicated that the photocatalytic activity of F-doped TiO₂ was 1.5 times higher than that of undoped TiO₂.

Key words: TiO₂, photocatalysis, F-doping, NH₄F

CLC Number:

JIANG Hong-fu, ZHOU Zuo-xing, LIU Xing-qin, MENG Guang-yao. Study on the Performance of F-Doped TiO₂[J]. Imaging Science and Photochemistry, 2007, 25(3): 223-229.

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[1] 宋海燕.新型光催化材料的制备及催化性能研究(博士学位论文).合肥:中国科学技术大学材料科学与工程系,2006.

Study on the Performance of F-Doped TiO₂

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