Citation: 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 Physico-Chimica Sinica, ;2011, 27(04): 932-938. doi: 10.3866/PKU.WHXB20110329 shu

Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu₂O Nanocomposites

CHEN Jin-Yi ^1,2, ,
LI Nian ¹ ,
LI Jing ¹ ,
ZHU Liang ¹ ,
PENG Chang-Jun ¹

1.
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

Received Date: 14 September 2010
Available Online: 17 February 2011
Fund Project: 国家自然科学基金(50804035)，湖北省自然科学基金(2008CDB375) (50804035)，湖北省自然科学基金(2008CDB375) 武汉市青年科技晨光计划(200950431194) (200950431194)武汉工程大学青年基金(Q0806)资助项目 (Q0806)

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.
- Cross-linked sodium rectorite,
- Cu₂O,
- Nanocomposites,
- Visible light photocatalytic activity
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Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu2O Nanocomposites

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Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu₂O Nanocomposites