| 可见光下具有高光子效应和光催化活性的CuS-石墨烯氧化物/TiO2复合材料的制备（英文） |
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| 作者姓名： | PARK ChongYeon GHOSH Trisha MENG ZeDa KEFAYAT Ullah VIKRAM Nikam OH WonChun |
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| 作者单位： | Department of Advanced Materials &; Science Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea |
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| 基金项目： | supported by Research Foundation from Hanseo University in 2012 |
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| 摘 要： | CuS-graphene oxide/TiO2 composites were prepared using a sol-gel method to improve the photocatalytic performance of the photocatalyst. The composites were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, and transmission electron microscopy. The photocatalytic activities were examined by the degradation of methylene blue (MB) under visible-light irradiation. The photodegradation of MB under visible-light irradiation reached 90.1% after 120 min. The kinetics of MB degradation was plotted alongside the values calculated from the Langmuir-Hinshelwood equation. The CuS-graphene oxide/TiO2 sample prepared using 0.2 mol of TiO2 showed the best photocatalytic activity. This was attributed to a cooperative reaction as a result of increased photoabsorption by graphene oxide and an increased photocatalytic effect by CuS.
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| 关 键 词： | Graphene oxide Photocatalyst Titania Coper sulfide Methylene blue Visible light |
Preparation of CuS-graphene oxide/TiO2 composites designed for high photonic effect and photocatalytic activity under visible light |
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| PARK ChongYeon,GHOSH Trisha,MENG ZeDa,KEFAYAT Ullah,VIKRAM Nikam,OH WonChun.Preparation of CuS-graphene oxide/TiO2 composites designed for high photonic effect and photocatalytic activity under visible light[J].Chinese Journal of Catalysis,2013,34(4):711-717. |
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| Authors: | PARK ChongYeon GHOSH Trisha MENG ZeDa KEFAYAT Ullah VIKRAM Nikam OH WonChun |
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| Institution: | Department of Advanced Materials &; Science Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea |
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| Abstract: | CuS-graphene oxide/TiO2 composites were prepared using a sol-gel method to improve the photocatalytic performance of the photocatalyst. The composites were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, and transmission electron microscopy. The photocatalytic activities were examined by the degradation of methylene blue (MB) under visible-light irradiation. The photodegradation of MB under visible-light irradiation reached 90.1% after 120 min. The kinetics of MB degradation was plotted alongside the values calculated from the Langmuir-Hinshelwood equation. The CuS-graphene oxide/TiO2 sample prepared using 0.2 mol of TiO2 showed the best photocatalytic activity. This was attributed to a cooperative reaction as a result of increased photoabsorption by graphene oxide and an increased photocatalytic effect by CuS. |
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| Keywords: | Graphene oxide Photocatalyst Titania Coper sulfide Methylene blue Visible light |
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