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Acta Phys. Chim. Sin.  2008, Vol. 24 Issue (06): 992-996    DOI: 10.1016/S1872-1508(08)60045-5
Article     
Binding Characteristics of CoPc/SnO2 by In-situ Process and Photocatalytic Activity under Visible Light Irradiation
PAN Hai-Bo; WANG Fang; HUANG Jin-Ling; CHEN Nai-Sheng
College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, P. R. China
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Abstract  Cobalt phthalocyanine (CoPc) was synthesized and self-assembled on the surface of nanoscale tin dioxide (SnO2) by in-situ process, marked as i, and Co-O interaction was verified to conjugate axially between macromolecule (CoPc) and SnO2 in CoPc/SnO2(i). The results indicated that the binding constant of CoPc/SnO2(i) was two-order higher than that of CoPc/SnO2(d) synthesized by dipping process, marked as d, while the numbers of binding sites were comparable in both samples. The degradation rate in the photocatalytic activity of CoPc/SnO2(i) was 32.5% higher than that of CoPc/SnO2(d) under visible-light irradiation for 150 min due to the effective electron separation and energy injection from LUMO of CoPc to conduction band of SnO2 for CoPc/SnO2(i) based on the strong interaction between CoPc and SnO2. The degradation recyclability of CoPc/SnO2(i) retained 48.8% in 10 times under the same circular photocatalytic process.

Key wordsIn-situ synthesis      Binding characteristics      Photocatalysis under visible light irradiation      Sensitized mechanism      Stability     
Received: 18 February 2008      Published: 21 April 2008
MSC2000:  O643  
Corresponding Authors: PAN Hai-Bo     E-mail: hbpan@fzu.edu.cn
Cite this article:

PAN Hai-Bo; WANG Fang; HUANG Jin-Ling; CHEN Nai-Sheng. Binding Characteristics of CoPc/SnO2 by In-situ Process and Photocatalytic Activity under Visible Light Irradiation. Acta Phys. Chim. Sin., 2008, 24(06): 992-996.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.1016/S1872-1508(08)60045-5     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2008/V24/I06/992

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