Fluorescence sensing material for Cu2+ and Fe3+ detection and preparation method and application thereof

A fluorescent sensing and base material technology, applied in the field of fluorescent chemical sensing materials, can solve the problems of not being widely used, low detection efficiency, inconvenient to carry, etc., and achieve the effect of simple mechanism of action, fast response, and improved sensitivity

Inactive Publication Date: 2013-04-17
SUZHOU UNIV
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Problems solved by technology

[0004] The application of fluorescent chemical sensing materials in ion detection has been widely reported. For example, the literature Nano Lett., 2008, 8, 104-109 and J.Am.Chem.Soc., 2009, 131, 2008-2012 introduced the use of amino and coumarin Cu 2+ liquid sensing system, but due to the disadvantages of inconvenient portability and waste of resources, it cannot be widely used
In recent years, solid-state fluorescent chemical sensing materials have also achieved rapid dev

Method used

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  • Fluorescence sensing material for Cu2+ and Fe3+ detection and preparation method and application thereof
  • Fluorescence sensing material for Cu2+ and Fe3+ detection and preparation method and application thereof
  • Fluorescence sensing material for Cu2+ and Fe3+ detection and preparation method and application thereof

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Embodiment 1

[0026] The method for preparing polyparaphenylene vinylene / polymethyl methacrylate (PPV / PMMA) nanofiber membrane material comprises following two major steps:

[0027] 0.25g polyparaphenylene vinylene precursor (pre-PPV) and 1.25g polymethylmethacrylate (PMMA) were dissolved in 3.50g of N, N-dimethylformamide (DMF) solvent, in Under the condition of temperature of 50-60°C, stir until poly-p-phenylene vinylene precursor (pre-PPV) and polymethyl methacrylate (PMMA) are completely dissolved in N, N-dimethylformamide (DMF ); after the solution was lowered to room temperature, the solution was injected into the spinning solution container of the electrospinning machine, the spinning temperature was room temperature, the output voltage of the high-voltage power supply was 10kV, and the distance between the receiving screen and the spinneret was 12cm. The solution hangs in the shape of droplets at the tip of the gun and forms a Taylor cone, and there is a light yellow fiber film on t...

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Abstract

The invention relates to a fluorescence sensing material for Cu2+ and Fe3+ detection and a preparation method and application thereof. The preparation method includes dissolving polyphenylene vinylene precursor and polymethyl methacrylate into N, N-dimethyl-formamide solvent, obtaining polyphenylene vinylene precursor/polymethyl methacrylate nanofiber membrane after electrostatic spinning, and subjecting the obtained nanofiber membrane to a heat eliminating treatment under a vacuum state at the temperature of 110 to 130 DEG C to obtain the fluorescent sensing material. The fluorescent sensing material has a high specific surface area, so that the contact surface of the fluorescent sensing material and detection molecule can be effectively enlarged to obtain greatly improved detection sensitivity. The fluorescent sensing material has no specific receptor and has a special porous nanofiber structure formed by high temperature elimination to realize identification of the substance to be detected. When subjected to optical excitation, the fluorescent sensing material shows high selectivity and sensitivity to Cu2+ and Fe3+ and has different responsiveness. The fluorescent sensing material can be reused and has a good application prospect.

Description

technical field [0001] The invention relates to a fluorescent chemical sensing material, in particular to a 2+ and Fe 3+ The invention relates to a porous nanofiber material with high selectivity and high sensitivity and rapid response, a preparation method and an application thereof, and belongs to the technical fields of polymer materials, fluorescent chemical sensing materials and chemical analysis and detection. Background technique [0002] With the increasing attention to environmental pollution and the improvement of monitoring requirements, there are more and more functional requirements for detection materials, such as fast, simple, high sensitivity, and low cost. Among the many analysis and detection methods, the fluorescence detection method has the characteristics of less dosage, fast response, simple operation, high selectivity and high sensitivity, and is widely used in different fields such as ion trace and micro analysis, biomolecular recognition, etc. In...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/728D06C7/00G01N21/64
Inventor 范丽娟宋婧张伟
Owner SUZHOU UNIV
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