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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2011,Vol.27>> Issue(04)>> 932-938     doi: 10.3866/PKU.WHXB20110329         中文摘要
CATALYSIS AND SURFACE SCIENCE
Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu2O Nanocomposites
CHEN Jin-Yi1,2, LI Nian1, LI Jing1, ZHU Liang1, PENG Chang-Jun1
1. School of Environment and Civil Engineering, Wuhan Institute of Technology, Wuhan 430073, P. R. China;
2. Engneering Research Center for Exploitation and Utilization of Phosphorous Resources, Ministry of Education, Wuhan 430073, P. R. China
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CN-REC/Cu2O nanocomposites were synthesized with Cu(CH3COO)2·H2O as a copper source and cross-linked sodium rectorite (CN-REC) as a carrier and template. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and ultraviolet visible diffuse reflectance spectrum (UV-Vis DRS). The results indicate that the regulatory effects of CN-REC on Cu2O are significant. Cu2O is dispersed in the interlayer and on the surface of?the lamellar structure of CN-REC. A Si―O―Cu bond was formed between the cuprous oxide crystal and the CN-REC crystal, which established a bridge for the transfer of photogenerated charge. The energy band gap of the nanocomposites became wider and the photoresponse properties of the nanocomposites became stronger. To study the visible light photocatalytic activity of the nanocomposites, reactive brilliant red (X-3B) was selected as a target contaminant. The photocatalytic degradation rate of X-3B with the nanocomposites is more than 80%, which is better than that with Cu2O. The degradation progress accorded with the L-H kinetics equations.



Keywords: Cross-linked sodium rectorite   Cu2O   Nanocomposites   Visible light photocatalytic activity  
Received: 2010-09-14 Accepted: 2010-12-02 Publication Date (Web): 2011-02-17
Corresponding Authors: CHEN Jin-Yi Email: jychwit@163.com

Fund: The project was supported by the National Natural Science Foundation of China (50804035), Natural Science Foundation of Hubei Province, China (2008CDB375), Wuhan Chenguang Scheme Established under Wuhan Science and Technology Bureau, China (200950431194) and Youth Foundation of Wuhan Institute of Technology, China (Q0806).

Cite this article: CHEN Jin-Yi, LI Nian, LI Jing, ZHU Liang, PENG Chang-Jun. Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu2O Nanocomposites[J]. Acta Phys. -Chim. Sin., 2011,27 (04): 932-938.    doi: 10.3866/PKU.WHXB20110329

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