Method for preparing electrochemical biphenol A sensors

An electrochemical and sensor technology, which is applied in the field of preparation of electrochemical bisphenol A sensors, can solve the problems of low yield and cumbersome process, and achieve the effects of low cost, simple preparation and convenient operation

Inactive Publication Date: 2016-10-26
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, most of the synthesis methods are synthesized separately, and then compound the catalyst and the carrier, the process is cumbersome and the yield is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 Mn-TiO 2 / MoS 2 preparation of

[0039] (1) Add 0.6 g of molybdenum disulfide powder and 0.2 mmol of manganese salt to 3 mL of n-butyllithium solution, and stir for 12 hours under nitrogen protection at 60 °C to obtain the reacted solution;

[0040] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 60 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain manganese Intercalated molybdenum disulfide nanomaterials;

[0041] (3) Take 500 mg of manganese-intercalated molybdenum disulfide nanomaterials prepared in step (2) and add them to 5 mL of tetrabutyl titanate. After stirring for 1 hour, slowly add 0.5 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 160°C for 18 hours;

[0042] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol...

Embodiment 2

[0047] Example 2 Mn-TiO 2 / MoS 2 preparation of

[0048] (1) Add 0.6 g of molybdenum disulfide powder and 1.0 mmol of manganese salt to 5 mL of n-butyllithium solution, and stir for 24 hours under nitrogen protection at 30 °C to obtain the reacted solution;

[0049] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 30 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain manganese Intercalated molybdenum disulfide nanomaterials;

[0050] (3) Add 200 mg of manganese-intercalated molybdenum disulfide nanomaterials prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, then slowly add 0.6 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 180°C for 20 hours;

[0051] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum...

Embodiment 3

[0056] Example 3 Mn-TiO 2 / MoS 2 preparation of

[0057] (1) Add 0.6 g of molybdenum disulfide powder and 2.0 mmol of manganese salt into 10 mL of n-butyllithium solution, and stir for 48 hours under nitrogen protection at 50 °C to obtain the reacted solution;

[0058] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 50 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain manganese Intercalated molybdenum disulfide nanomaterials;

[0059] (3) Add 10 mg of the manganese-intercalated molybdenum disulfide nanomaterials prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, slowly add 0.8 mL of hydrofluoric acid while stirring, and then Reaction in the reactor at 200°C for 24 hours;

[0060] (4) The reaction product obtained in step (3) was centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuu...

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Abstract

The invention discloses a method for preparing electrochemical biphenol A sensors. The method has the advantages that a novel two-dimensional nanometer electrode material Mn-TiO2/MoS2, namely, a two-dimensional nanometer composite material, is prepared at first, manganese-doped titanium dioxide nanometer blocks and molybdenum disulfide are subjected to in-situ composition to obtain the two-dimensional nanometer composite material, the novel two-dimensional nanometer electrode material is excellent in biocompatibility, has a large specific surface area and is loaded with biphenol A antibodies, hydrogen peroxide can be catalyzed by manganese-doped titanium dioxide to generate O2 in an in-situ manner, electrochemical signals can be generated, the current intensity can be correspondingly lowered by the aid of specific quantification of the antibodies and antigens and influence on the electron transport capacity, and accordingly the biochemical biphenol A sensors which are biosensors for detecting biphenol A by the aid of label-free electrochemical processes can be ultimately constructed.

Description

technical field [0001] The invention relates to a preparation method of an electrochemical bisphenol A sensor. It belongs to the technical field of new nanometer functional materials and biosensors. Background technique [0002] Environmental estrogen refers to a class of compounds that interfere with the synthesis, release, transport, binding, and metabolism of normal endocrine substances in the body after entering the body, activate or inhibit the function of the endocrine system, and thereby destroy the stability and regulation of the body. There are many kinds of environmental estrogens, including synthetic compounds and plant natural estrogens, which are widely distributed in nature. Bisphenol A is a bisphenol-like synthetic estrogen. [0003] At present, the methods for detecting bisphenol A mainly include chromatography and mass spectrometry. Such methods require expensive instruments and complex operations, and laboratory personnel need professional training befor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/327G01N27/30
CPCG01N27/30G01N27/3278
Inventor 张勇邓保军魏琴李燕马洪敏
Owner UNIV OF JINAN
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