简便的一锅法制备Ag@MOF(Ag)纳米复合材料用于水相中2,4,6-三硝基苯酚的高选择性检测。
Facile one-pot fabrication of Ag@MOF(Ag) nanocomposites for highly selective detection of 2,4,6-trinitrophenol in aqueous phase.
作者信息
Guo Hongxu, Zhang Yanhui, Zheng Zishan, Lin Haibin, Zhang Yi
机构信息
College of Chemistry & Environment, Minnan Normal University, Zhangzhou 363000, Fujian, PR China.
College of Chemistry & Environment, Minnan Normal University, Zhangzhou 363000, Fujian, PR China.
出版信息
Talanta. 2017 Aug 1;170:146-151. doi: 10.1016/j.talanta.2017.03.096. Epub 2017 Apr 5.
Ag@MOF(Ag) nano-composites were fabricated through one-pot facile reflux reaction from the raw materials of AgNO and 2-aminoterephthalic acid, and were then characterized through SEM, TEM, XRD, XPS, and FTIR, which showed a high fluorescence quantum yield (10.6%) and exhibited outstanding selectivity and excellent sensitivity for 2,4,6-trinitrophenol (TNP) over a concentration range of 1-29μM in water. The fluorescence quenching mechanism may be attributed to hydrogen-bonding interactions and resonance energy transfer.
通过一锅法简便回流反应，以硝酸银和2-氨基对苯二甲酸为原料制备了Ag@MOF(Ag)纳米复合材料，然后通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线衍射（XRD）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FTIR）对其进行表征。该复合材料显示出高荧光量子产率（10.6%），并且在水中1-29μM的浓度范围内，对2,4,6-三硝基苯酚（TNP）表现出出色的选择性和优异的灵敏度。荧光猝灭机制可能归因于氢键相互作用和共振能量转移。
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