Electron Interaction Among the Noncovalently Engineered Graphene-methylene Blue Nanocomposites

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (3): 520-523.

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Electron Interaction Among the Noncovalently Engineered Graphene-methylene Blue Nanocomposites

LI Zhi¹, SHI Xiao-jun^1,2, GE Xue-ping¹, WEI Jian-jun¹, YANG Cun-zhong¹, FANG Bin¹, XIE Hai-fen¹, AN Xing-cai³

1. School of Sciences, East China University of Science and Technology, Shanghai 200237, P. R. China;
2. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China;
3. Gansu Natural Energy Research Institute, Lanzhou 730000, P. R. China

Received:2011-07-07 Revised:2011-12-08 Online:2012-05-25 Published:2012-05-03
Contact: YANG Cun-zhong, AN Xing-cai E-mail:czyang@ecust.edu.cn; anxc_6699@163.com

Abstract

Abstract: The electron interaction among the noncovalently engineered graphene-methylene blue(MB) nanocomposite with a dipolar pull-push hybrid model was studied. The π-π interaction between reduced graphene oxide(rGO) and MB molecule was studied by ¹HNMR spectroscopy. The electrochemical investigation indicates MB has a stronger electron transfer interaction with rGO than with GO. The ability of graphene-MB nanocomposites to undergo photoinduced electron transfer was confirmed from the capability of the nanocomposites coated electrode to generate photocurrent in a photoelectrochemical cell. The role of graphene as electron acceptor in the opto-electronic assembly was discussed.

Key words: Graphene, Methylene blue, Electron interaction, Photocurrent

LI Zhi, SHI Xiao-jun, GE Xue-ping, WEI Jian-jun, YANG Cun-zhong, FANG Bin, XIE Hai-fen, AN Xing-cai. Electron Interaction Among the Noncovalently Engineered Graphene-methylene Blue Nanocomposites[J]. Chemical Research in Chinese Universities, 2012, 28(3): 520-523.

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Electron Interaction Among the Noncovalently Engineered Graphene-methylene Blue Nanocomposites

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