Chemosensory rhodamine-immobilized mesoporous silica material for extracting mercury ion in water with improved sensitivity
Chemosensory rhodamine-immobilized mesoporous silica material for extracting mercury ion in water with improved sensitivity
复制标题
化学感应罗丹明固定介孔二氧化硅材料用于提取水中汞离子并提高灵敏度
DOI：
10.1016/j.matchemphys.2012.09.055
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发表时间：
2012-11
影响因子：
4.6
通讯作者：
Huang, Wei
中科院分区：
文献类型：
--
作者：
Wu, Dayu;Wang, Zhuqing;Wu, Genhua;Huang, Wei
介孔二氧化硅材料SBA-15是构建荧光表面传感器的良好载体。在本文中，我们报道了一种三步表面反应的策略，即通过在APES功能化的SBA-15上点击罗丹明荧光团来构建高效的汞离子荧光表面传感器，并通过红外光谱、热重分析、元素分析、氮吸附实验和透射电子显微镜对其进行了全面的表征。我们的实验结果表明，这种策略在SBA-15上的加载效率明显高于以前报道的策略。SBAIR对Hg2+的提取效率提高了约89%。除了高选择性外，目前的化学传感器还表现出更高的灵敏度，可以响应低至ppb水平的Hg2+(1.0x×10−8M，2 ppb)。
Mesoporous silica material, SBA-15, is an excellent support for constructing fluorescent surface sensor. In this paper, we reported a three-step surface reaction involved strategy to construct efficient fluorescent surface sensor for mercury ion by clicking rhodamine fluoroionophores onto APES-functionalized SBA-15, which is fully characterized by IR spectra, TGA analysis, elemental analysis, nitrogen adsorption experiment and TEM. Our experimental results indicated that such a strategy exhibits an obviously higher loading efficiency within SBA-15 than a previously reported strategy. The Hg2+extracting efficiency for SBAIR was found to be enhanced (ca. 89%). In addition to the high selectivity, the current chemosensor shows improved sensitivity and can respond to Hg2+as low as ppb level (1.0 × 10−8M, 2 ppb) in water.
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影响因子：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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