Author/s: E. J. Juárez-Pérez, P. Hubert Mutin, M. Granier, F. Teixidor, R. Núñez

Reference: Langmuir, 2010, 26(14), pp. 12185–12189

Abstract:

Cobaltabisdicarbollide derivatives have been anchored for the first time to the surface of TiO₂ particles using two phosphorus-containing cobaltabisdicarbollide derivatives: Cs[1,1′-μ-(HO)(O)P-3,3′-Co(1,2-C₂B₉H₁₀)₂], Cs[1], and Cs[8,8′-μ-(OH)(O)-P(O)₂-3,3′-Co(1,2-C₂B₉H₁₀)₂], Cs[2]. Grafting of cobaltabisdicarbollide anions to the TiO₂ particle surface through phosphinate or phosphate anchors has been achieved by using standard conditions. Characterization of the modified titanium dioxide surfaces by FTIR, ¹¹B and ³¹P NMR, DRUV−vis spectroscopy, and transmission electron microscopy (TEM) indicates an efficient functionalization on the particle surface.