一种用于铁、锶、二氧化硅和甲苯荧光传感的多响应铝基金属有机框架。
A Multi-response Aluminum Metal-organic Frameworks for Fluorescence Sensing of Fe, Sr, SiOand Toluene.
作者信息
Ma Xuelin, Zhang Xiaoyong, Han Limin, Hao Zhanzhong, Yong Shengli
机构信息
Chemical Engineering College, Inner Mongolia University of Technology, Hohhot, People's Republic of China.
Department of Chemistry, Baotou Teachers' College, Baotou, People's Republic of China.
出版信息
Methods Appl Fluoresc. 2021 Apr 1;9(2). doi: 10.1088/2050-6120/abf027.
A new Aluminum metal-organic frameworks(Al-MOF) based on tricarboxylate ligands(L){L = 2,2',2'-([1,3,5]-triazine-2,4,6-triimino)tribenzoic acid)} has been designed and synthesized. It can be served as a platform of multi-responsive fluorescence sensor for Fe, Srand SiOin water, which is mainly due to the significant enhancement effect of these ions on the fluorescence intensity of Al-MOF. Especially, Feions are rarely able to induce MOFs fluorescence enhancement. The limit of detection for three kinds of ions is 6.62* 10M, 5.37* 10M, 6.85* 10M respectively. Meanwhile, It can also be used as a multi-response fluorescence probe to detect toluene in DMF solution, limit of detection is 9.16* 10M respectively. The structure of Al-MOF was characterized by FTIR,H NMR, SEM, TAG, PXRD and element analysis. The PXRD showed that the structure of Al-MOF remained the high water stability and pH stability. The application of water samples and vegetables showed that Al-MOF had high sensitive detection for Feions.
一种基于三羧酸配体（L）{L = 2,2',2'-([1,3,5]-三嗪-2,4,6-三亚氨基)三苯甲酸}的新型铝基金属有机框架（Al-MOF）已被设计并合成。它可作为水中铁、锶和硅酸根的多响应荧光传感器平台，这主要是由于这些离子对Al-MOF的荧光强度有显著增强作用。特别是，铁离子很少能诱导MOF荧光增强。三种离子的检测限分别为6.62×10⁻⁶M、5.37×10⁻⁶M、6.85×10⁻⁶M。同时，它还可作为多响应荧光探针检测DMF溶液中的甲苯，检测限分别为9.16×10⁻⁶M。通过傅里叶变换红外光谱（FTIR）、核磁共振氢谱（¹H NMR）、扫描电子显微镜（SEM）、热重分析（TAG）、粉末X射线衍射（PXRD）和元素分析对Al-MOF的结构进行了表征。PXRD表明Al-MOF的结构具有高水稳定性和pH稳定性。对水样和蔬菜的应用表明，Al-MOF对铁离子具有高灵敏度检测能力。
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