Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue

doi:10.1016/S1872-2067(10)60258-6

催化学报 ›› 2011, Vol. 32 ›› Issue (9): 1457-1464.DOI: 10.1016/S1872-2067(10)60258-6

Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue

MENG Zada, ZHU Lei, CHOI Jong-geun, PARK Chong-yeon, OH Won-chun*

Department of Advanced Materials Science & Engineering, Hanseo University, Seosan, Chungnam 356-706, Korea

收稿日期:2011-04-17 修回日期:2011-05-28 出版日期:2011-09-09 发布日期:2015-01-24

Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue

MENG Zada, ZHU Lei, CHOI Jong-geun, PARK Chong-yeon, OH Won-chun*

Department of Advanced Materials Science & Engineering, Hanseo University, Seosan, Chungnam 356-706, Korea

Received:2011-04-17 Revised:2011-05-28 Online:2011-09-09 Published:2015-01-24

摘要/Abstract

摘要： Rare earth oxide-treated fullerene and titania composites (Y-fullerene/TiO₂) were prepared by the sol-gel method. The products had interesting surface compositions. X-ray diffraction patterns of the composites showed that the Y-fullerene/TiO₂ composites contained a single and clear anatase phase. The surface properties were observed by scanning electron microscopy, which gave a characterization of the texture on the Y-fullerene/TiO₂ composites and showed a homogenous distribution of titanium particles. The energy-dispersive X-ray spectra showed the presence of C and Ti with strong Y peaks. The composite obtained was also characterized with transmission electron microscopy and UV-Vis spectroscopy. The photocatalytic results showed that the Y-fullerene/TiO₂ composites had excellent activity for the degradation of methylene blue under visible light irradiation. This was attributed to both the effects on the photocatalysis of the supported TiO₂ by charge transfer by the fullerene, and the introduction of yttrium to enhance photo-generated electron transfer.

关键词: fullerene, yttrium, titania, visible light, methylene blue

Abstract: Rare earth oxide-treated fullerene and titania composites (Y-fullerene/TiO₂) were prepared by the sol-gel method. The products had interesting surface compositions. X-ray diffraction patterns of the composites showed that the Y-fullerene/TiO₂ composites contained a single and clear anatase phase. The surface properties were observed by scanning electron microscopy, which gave a characterization of the texture on the Y-fullerene/TiO₂ composites and showed a homogenous distribution of titanium particles. The energy-dispersive X-ray spectra showed the presence of C and Ti with strong Y peaks. The composite obtained was also characterized with transmission electron microscopy and UV-Vis spectroscopy. The photocatalytic results showed that the Y-fullerene/TiO₂ composites had excellent activity for the degradation of methylene blue under visible light irradiation. This was attributed to both the effects on the photocatalysis of the supported TiO₂ by charge transfer by the fullerene, and the introduction of yttrium to enhance photo-generated electron transfer.

Key words: fullerene, yttrium, titania, visible light, methylene blue

MENG Zada, ZHU Lei, CHOI Jong-geun, PARK Chong-yeon, OH Won-chun. Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue[J]. 催化学报, 2011, 32(9): 1457-1464.

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Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue

Rare Earth Oxide-Treated Fullerene and Titania Composites with Enhanced Photocatalytic Activity for the Degradation of Methylene Blue

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