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Luminescent probe with visual recognition effect for benzene steam as well as preparation method and application of luminescent probe

A fluorescent probe and vapor technology, applied in chemical instruments and methods, fluorescence/phosphorescence, color-changing fluorescent materials, etc., can solve problems such as real-time detection of unsuitable benzene compound vapor, cumbersome sample pretreatment, complicated operating procedures, etc., to achieve good results Light and heat stability, good reusability, effect without professional knowledge

Inactive Publication Date: 2014-12-10
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods have the characteristics of fast analysis speed, good separation efficiency, high sensitivity, and wide application range, but they have high technical content, cumbersome sample pretreatment, relatively complicated operating procedures, expensive instruments, and require specific experimental conditions and professionals. Operation, not suitable for real-time detection of benzene compound vapor by the general population

Method used

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  • Luminescent probe with visual recognition effect for benzene steam as well as preparation method and application of luminescent probe
  • Luminescent probe with visual recognition effect for benzene steam as well as preparation method and application of luminescent probe
  • Luminescent probe with visual recognition effect for benzene steam as well as preparation method and application of luminescent probe

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0021] Step 1: Preparation of [3,8-bis(trimethylsilylethynyl)-1,10-phenanthroline]platinum dichloride. Take an equivalent amount of 3,8-bis(trimethylsilylethynyl)-1,10-phenanthroline and dimethyl sulfoxide platinum chloride and stir in anhydrous acetonitrile under nitrogen protection for 8 hours. The product was separated by silica gel column, and the yield was 65-70%. Elemental analysis results: press C 22 h 24 Cl 2 N 2 PtSi 2 Calculated value (%) C41.38, H3.79, N4.39; found value (%) C41.34, H3.83, N4.41. 1 HNMR ( d6 -DMSO):0.338(s,18H),8.227(s,2H),9.201(s,2H),9.479(d,2H)

[0022] Step 2: Preparation of Pt(II) complex luminescence probe. Under the protection of nitrogen, take the product obtained in step 1, 2.5 equivalents of p-chlorophenylacetylene, 0.05 equivalents of cuprous iodide, and stir i...

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Abstract

The invention discloses a luminescent probe with a visual recognition effect for benzene steam as well as a preparation method and an application of the luminescent probe. The probe is a complex prepared from platinum (II), a 3, 8-bi(trimethylsilylacetylene)-1, 10-phenanthroline ligand and an auxiliary 4-chlorophenylacetylene ligand. When the probe is not in contact with benzene vapor, emission peaks of the probe are located at the wavelength positions of 543nm and 581nm under the excitation of light with the wavelength of 250-500nm, and the light is yellowish green. When the probe is in contact with the benzene vapor, an emission spectrum is subjected to bathochromic shift to a position near the wavelength of 630-660nm, and the color of the emitted light is remarkably changed from yellowish green to bright red. The probe disclosed by the invention not only has high sensitivity and high selectivity for the benzene vapor, but also has the advantages of high analysis speed, good repeatability, visualization, low detecting cost and simple detecting method so as to have a high application value in the field of environment detection. The probe has good reversibility, so that the performance of the probe is not influenced after the probe is repeatedly used.

Description

technical field [0001] The invention belongs to the field of synthesis and application of vapor luminescent and color-changing materials, and in particular relates to a luminescent probe capable of visually recognizing benzene vapor, a preparation method and an application thereof. Background technique [0002] Benzene compounds are a kind of volatile substances, which are widely used in industrial production and people's daily life as reaction solvents, chemical raw materials, solvents or thinners for various glue paints, coatings and waterproof building materials. Benzene compounds are highly toxic and have been identified as strong carcinogens by the World Health Organization. Studies have shown that long-term inhalation of benzene compound vapor can lead to various serious physiological diseases such as regenerative anemia, leukemia, cancer, fetal malformation, kidney and central nervous system damage. Therefore, it is of great significance to develop a method for the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K9/02G01N21/64
Inventor 倪钧康佳佳王会慧盖旭巧
Owner DALIAN UNIV OF TECH
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