论文成果
Highly sensitive and selective fluorescence sensor based on functional SBA-15 for detection of Hg2+ in Aqueous Media
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- 论文类型：期刊论文
- 发表时间：2010-04-15
- 发表刊物：TALANTA
- 收录刊物：SCIE、EI、PubMed
- 文献类型：J
- 卷号：81
- 期号：1-2
- 页面范围：643-649
- ISSN号：0039-9140
- 关键字：Chemosensor; Hg2+; Rhodamine B; Fluorescent probe; SBA-15
- 摘要：A new Rhodamine-based chemosensor RBSN designed for the selective detection of Hg2+ in aqueous media is synthesized and structural characterized. It features brightness blue emission in the presence of Hg2+ with the fluorescent detection limit for Hg2+ in aqueous media being ppb levels and exhibits excellent Hg2+-specific luminescence enhancement over various competitive cations, including alkali and alkaliearth, the first-row transition metals and heavy metals. By immobilizing RBSN to the mesoporous SBA-15, a highly selective and sensitive chemosensor toward mercury cations in aqueous solution was achieved. RBSN/SBA-15 could quantitatively determinate mercury cations at ppb level in the practical environmental media, suggesting the possibility for real-time quantitative detection of Hg2+ and the convenience for potential application in toxicological and environmental science. (C) 2010 Elsevier B.V. All rights reserved.
