Anchorage of Dye Molecules and Organic Moieties to the Inner Surface of Si-MCM-41

0181632 - UFCH-W 20030053 RIV NL eng C - Conference Paper (international conference)
Rohlfing, Y. - Wöhrle, D. - Rathouský, Jiří - Zukal, Arnošt - Wark, M.
Anchorage of Dye Molecules and Organic Moieties to the Inner Surface of Si-MCM-41.
Impact of Zeolites and Other Porous Materials on the New Technologies at the Beginning of the New Millennium. Amsterdam: Elsevier, 2002 - (Aiello, R.; Giordano, G.; Testa, F.), s. 1067-1074. Studies in Surface Science and Catalysis., 142.
[International of FEZA /2./. Taormina (IT), 01.09.2002-05.09.2002]
Institutional research plan: CEZ:AV0Z4040901
Keywords : MCM-41 * adsorption * silicas
Subject RIV: CF - Physical ; Theoretical Chemistry

Based on siliceous MCM-41 material obtained according to a pH dependent method of homogeneous precipitation host-guest-systems with covalently grafted organic moieties, especially chromophores, were prepared. The highly ordered mesoporous material does not suffer from the multi-step procedure including passivation of surface silanol groups, functionalization with 3-aminopropyltriethoxysilane and subsequent anchorage of dye molecules and anhydrides via peptide, sulfonamide and anhydride imide bonds. The present work gives a survey on the incorporation of anhydrides and chromophores of four different types and proves their uniform distribution in the host pore system as well as their diffusion stability by different optical spectroscopy methods and physisorption studies.
Permanent Link: http://hdl.handle.net/11104/0078168