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Highly Sensitive Fluorescence Probe Based on Functional SBA-15 for Selective Detection of Hg2+

Author(s): Wang Xiaoyu | Wang Pan | Dong Zihao | Dong Zhengping | Ma Zongyan | Jiang Jian | Li Rong | Ma Jiantai

Journal: Nanoscale Research Letters
ISSN 1931-7573

Volume: 5;
Issue: 9;
Start page: 1468;
Date: 2010;
Original page

Keywords: SBA-15 | Dansylamide | DA/SBA-15 | Hg2+ ion | Detection

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.
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