期刊
ANALYTICAL METHODS
卷 11, 期 34, 页码 4382-4389出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ay01093a
关键词
-
资金
- National Natural Science Foundation of China [81772290, 81271930]
- Graduate Research and Innovation Foundation of Chongqing, China [CYB18026]
- Chongqing Science and Technology Commission [CSTC2018jcyjAX0062]
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province [2018GTJ010]
- Brew Microorganisms Technology and Application of Key Laboratory Project in Sichuan Province [NJ2018-01]
- sharing fund of Chongqing University's large equipment
A luminescent amino-functionalized metal-organic framework (Cu-MOFs) was synthesized from 2-aminoterephthalic acid and Cu(ii) ions by a solvothermal method. Cu-MOFs displayed blue fluorescence with a peak at 430 nm under 330 nm excitation. Its structure was characterized by FTIR, TEM, XRD, and XPS. The fluorescence of the Cu-MOFs was quenched by Fe3+ in aqueous solutions. The limit of detection was 0.5 mu M, and the linear working range extended from 2 mu M to 35 mu M. Additionally, a good logarithmic relationship between relative fluorescence intensity (F/F-0) and Fe3+ concentrations ranging from 2 to 180 mu M was obtained with a detection limit of 1.56 mu M (R-2 = 0.9975). No clear interference was observed when challenged with a wide variety of cations and anions. The recoveries from spiked real water samples were in the range of 91.7-107.7%, and the detection results were consistent with inductively coupled plasma mass spectrometry (ICP-MS) results. Therefore, the fluorescent sensor has great potential in environmental monitoring.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据