Behaviour of Ru(bpy)2+3 on the Surface of Water-Soluble Single-Walled Carbon Nanotubes on Adding Other Cations


Behaviour of excited Ru(bpy)2+3 bound to the surface of water-soluble single-walled carbon nanotubes on addition of other cations have been investigated by measuring Ru(bpy) luminescence. In contrast to what was observed with a solution containing rod-like aggregation particles of Nafion, we found that Ru(bpy)2+3 has a stronger attraction than that of other cations to the sulfonic groups on the carbon nanotubes. Such a difference is attributed to the unique micro-environmental characteristics of the molecular assemblies.

Share and Cite:

H. Shioyama, "Behaviour of Ru(bpy)2+3 on the Surface of Water-Soluble Single-Walled Carbon Nanotubes on Adding Other Cations," Journal of Surface Engineered Materials and Advanced Technology, Vol. 2 No. 2, 2012, pp. 95-99. doi: 10.4236/jsemat.2012.22015.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] H. Tributsch and M. Calvin, “Electrochemistry of Excited Molecules: Photo-Electrochemical Reactions of Chlorophylls,” Photochemistry and Photobiology, Vol. 14, No. 2, 1971, pp. 95-112. doi:10.1111/j.1751-1097.1971.tb06156.x
[2] G. M. Brown, B. S. Brunschwig, C. Creutz, J. F. Endicott and N. J. Sutin, “Homogeneous Catalysis of the Photo-reduction of Water by Visible Light. Mediation by a Tris(2,2’-bipyridine)ruthenium(II)-Cobalt(II) Macrocycle System,” Journal of the American Chemical Society, Vol. 101, No. 5, 1979, pp. 1298-1300. doi:10.1021/ja00499a051
[3] S. Nishitani, N. Kurata, Y. Sakata, S. Misumi, A. Karen, T. Okada and N. Mataga, “A New Model for the Study of Multistep Electron Transfer in Photosynthesis,” Journal of the American Chemical Society, Vol. 105, No. 26, 1983, pp. 7771-7772. doi:10.1021/ja00364a065
[4] H. Shioyama, A. Takami and N. Mataga, “Comparative Studies of Anionic Molecular Assemblies as Mediums for Electron Transfer Quenching of Excited [Ru(bpy)3]2+ by Cationic Quenchers,” Bulletin of the Chemical Society of Japan, Vo. 58, No. 3, 1985, pp. 1029-1032.
[5] D. Gust and T. A. Moore, “Mimicking Photosynthesis,” Science, Vol. 244, 1989, pp. 35-41. doi:10.1126/science.244.4900.35
[6] B. O’Regan and M. Graetzel, “A Low-Cost, High-Efficiency Solar Cell Based on Dye-Sensitized Colloidal TiO2 Films,” Nature, Vol. 353, No. 6346, 1991, pp. 737- 740. doi:10.1038/353737a0
[7] H. Ko-tani, K. Ohkubo, Y. Takai and S. Fukuzumi, “Viologen-Modified Platinum Clusters Acting as an Efficient Catalyst in Photocatalytic Hydrogen Evolution,” Journal of Physical Chemistry B, Vol. 110, No. 47, 2006, pp. 24047-24053. doi:10.1021/jp065215v
[8] H. Shioyama, “Study of Quenching of [Ru(bpy)3]2+ Luminescence by C60F36 in an Ethanol Solution of Nafion,” Tanso, Vol. 232, 2008, pp. 82-84. doi:10.7209/tanso.2008.82
[9] H. Shioyama, “Quenching of Excited Ru(bpy) in Nafion Ionomer Solution and in Nafion Membrane,” Molecular Crystals and Liquid Crystals, Vol. 515, No. 1, 2009, pp. 230-238. doi:10.1080/15421400903290402
[10] H. Shioyama and K. Kamada, “A New Method to Evaluate the Mobility of Ions in the Nanochannels of Polymer Electrolyte Membrannes,” Polymer Science Series A, Vol. 52, No. 7, 2010, pp. 727-731. doi:10.1134/S0965545X10070072
[11] S.-J. Lee, T. L. Yu, H.-L. Lin, W.-H. Liu and C.-L. Lai, “Solution Properties of Nafion in Methanol/Water Mixture Solvent,” Polymer, Vol. 45, No. 8, 2004, pp. 2853-2862. doi:10.1016/j.polymer.2004.01.076
[12] B. Loppinet, G. Gebel and C. E. Williams, “Small-Angle Scattering Study of Perfluorosulfonated Ionomer Solutions,” Journal of Physical Chemistry B, Vol. 101, No. 10, 1997, pp. 1884-1892. doi:10.1021/jp9623047
[13] H. Shioyama, “Absorption Coefficient and Electron Affinity of a Water-Soluble Single-Walled Carbon Nanotube,” Tanso, Vol. 247, 2011, pp. 59-61. doi:10.7209/tanso.2011.59
[14] B. Zhao, H. Hu and R. C. Haddon, “Synthesis and Properties of a Water-Soluble Single-Walled Carbon Nanotube-Poly(m-Aminobenzene Sulfonic Acid) Graft Copolymer,” Advanced Functional Materials, Vol. 14, No. 1, 2004, pp. 71-76. doi:10.1002/adfm.200304440

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.