A study of photon-induced processes with adsorption-desorption of glycine at the TiO2(110)(1 x 2) surface

bProcesses of adsorption-desorption with glycine admitted to the TiO2(110)( 1 x 2) reconstructed surface have been studied using synchrotron light, ene rgy 55 eV, and with coverages both sub to monolayer, and multilayer at room temperature. The findings are discussed in terms of processes of dissociat ive adsorption at the sub-monolayer stage with only minor amounts of the am ino radical of the glycine molecule remaining at the surface. The Ti 3d) pe ak is significantly affected in the evolution towards initial monolayer cov erage. Aspects of photon induced desorption with photoelectron spectroscopy are compared with thermal treatments of the glycine-covered surface. (C) 2 000 Elsevier Science B.V. All rights reserved.