Preparation of CuS-graphene oxide/TiO2 composites designed for high photonic effect and photocatalytic activity under visible light

doi:10.1016/S1872-2067(11)60502-0

催化学报 ›› 2013, Vol. 34 ›› Issue (4): 711-717.DOI: 10.1016/S1872-2067(11)60502-0

Preparation of CuS-graphene oxide/TiO₂ composites designed for high photonic effect and photocatalytic activity under visible light

PARK ChongYeon, GHOSH Trisha, MENG ZeDa, KEFAYAT Ullah, VIKRAM Nikam, OH WonChun

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

出版日期:2013-04-23 发布日期:2013-04-24
通讯作者: OH WonChun

Preparation of CuS-graphene oxide/TiO₂ composites designed for high photonic effect and photocatalytic activity under visible light

PARK ChongYeon, GHOSH Trisha, MENG ZeDa, KEFAYAT Ullah, VIKRAM Nikam, OH WonChun

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

Online:2013-04-23 Published:2013-04-24
Supported by:
This work was supported by Research Foundation from Hanseo University in 2012.

摘要/Abstract

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.

关键词: Graphene oxide, Photocatalyst, Titania, Coper sulfide, Methylene blue, Visible light

Abstract:

Key words: Graphene oxide, Photocatalyst, Titania, Coper sulfide, Methylene blue, Visible light

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]. 催化学报, 2013, 34(4): 711-717.

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Preparation of CuS-graphene oxide/TiO₂ composites designed for high photonic effect and photocatalytic activity under visible light

Preparation of CuS-graphene oxide/TiO₂ composites designed for high photonic effect and photocatalytic activity under visible light

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