Title of article
Adsorption of phenylalanine on single crystal rutile TiO2(1 1 0) surface
Author/Authors
Thomas، نويسنده , , A.G. and Flavell، نويسنده , , W.R. and Chatwin، نويسنده , , C.P. and Kumarasinghe، نويسنده , , A.R. and Rayner، نويسنده , , S.M. and Kirkham، نويسنده , , P.F. and Tsoutsou، نويسنده , , D. and Johal، نويسنده , , T.K. and Patel، نويسنده , , S.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2007
Pages
5
From page
3828
To page
3832
Abstract
The adsorption of the aromatic amino acid, phenylalanine on a TiO2 rutile (1 1 0) single crystal surface has been investigated with photoemission and NEXAFS (near edge X-ray absorption fine structure) spectroscopy. The results indicate initial adsorption via the carboxylate group in a bidentate configuration with the phenyl ring oriented at approximately 25° to the surface normal. The amino group remains as NH2. Subsequent layers of phenylalanine appear to adsorb as neutral molecules with H-bonding between NH2 and CO groups.
Keywords
Titanium dioxide , Single crystal , Rutile , Photoemission , NEXAFS , Adsorption geometry , Amino acid
Journal title
Surface Science
Serial Year
2007
Journal title
Surface Science
Record number
1701382
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