ANYL 138 |
| Alumina-based nanomembranes with pores of ~200nm in diameter were treated with a variety of different substituted silanes. The transport of ions through these treated membranes was studied using several analytical tools such as ultraviolet-visible, fluorescence, infrared, and Raman spectroscopy. Silanes with variable functional groups, either hydrophobic (isobutyl trimethoxysilane, IBTMS) or polar/reactive (aminopropyl trimethoxysilane, AMPTMS and aldehydetrimethoxysilane, ALDTMS), were examined. Preliminary data demonstrates that the alumina membranes treated with hydrophobic silanes allow significantly less transport when compared to blank (untreated) and polar/reactive silane-based membranes. In contrast, the presence of polar/reactive silanes or the addition of a surfactant (dodecyl benzenesulfonate) slightly improves the transport as compared to untreated membranes. Future work will focus on further derivatizing membranes by attaching a second functional group directly to the AMPTMS and ALDTMS-based membranes. |
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General Papers
7:00 PM-9:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Division of Analytical Chemistry |