Abstract
An inorganic–organic hybrid fluorescence chemosensor (DA/SBA-15) was prepared by covalent immobilization of a dansylamide derivative into the channels of mesoporous silica material SBA-15 via (3-aminopropyl)triethoxysilane (APTES) groups. The primary hexagonally ordered mesoporous structure of SBA-15 was preserved after the grafting procedure. Fluorescence characterization shows that the obtained inorganic–organic hybrid composite is highly selective and sensitive to Hg2+ detection, suggesting the possibility for real-time qualitative or quantitative detection of Hg2+ and the convenience for potential application in toxicology and environmental science.
Highlights
There has been growing interest during the last decade in the development of fluorescent molecular sensors for detecting metal ions in solution [1,2,3,4,5]
We report a new inorganic–organic hybrid fluorescence chemosensor (DA/SBA-15) for Hg2?
For SBA-15 and DA/SBA-15 Composites, the bands at 3,437 and 1,632 cm-1 are attributed to the stretching (3,437 cm-1) and bending (1,632 cm-1) vibrations of the surface silanol groups and the remaining adsorbed water molecules
Summary
There has been growing interest during the last decade in the development of fluorescent molecular sensors for detecting metal ions in solution [1,2,3,4,5]. Abstract An inorganic–organic hybrid fluorescence chemosensor (DA/SBA-15) was prepared by covalent immobilization of a dansylamide derivative into the channels of mesoporous silica material SBA-15 via (3-aminopropyl) triethoxysilane (APTES) groups. Fluorescence characterization shows that the obtained inorganic–organic hybrid composite is highly selective and sensitive to Hg2?
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