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Polymeric alizarin functionalized single-wall carbon nanohorn-based electrochemical sensor

A single-wall carbon nanohorn and electrochemical technology, which is applied in the field of analytical instruments, can solve the problems of poor dispersion of single-wall carbon nanohorn, and achieve the effects of good sensitivity, convenient processing and high accuracy

Inactive Publication Date: 2015-04-29
NANJING COLLEGE OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcoming of poor dispersion of single-walled carbon nanohorns, provide a method for dissolving single-walled carbon nanohorns, adopt non-covalent functionalization, and prepare alizarin red functionalized single-walled carbon nanohorns solution

Method used

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  • Polymeric alizarin functionalized single-wall carbon nanohorn-based electrochemical sensor
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  • Polymeric alizarin functionalized single-wall carbon nanohorn-based electrochemical sensor

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Embodiment 1

[0016] Example 1: Polyalizarin Red Functionalized Single-wall Carbon Nanohorn Electrochemical Sensor Determination of Hydroquinone in Water

[0017] (1) Film printed chip electrode preparation: On the polypropylene synthetic paper insulating substrate, the silver wire layer, the carbon working layer, the silver-doped silver chloride layer, and the insulating layer are printed layer by layer according to the design pattern. Among them, the silver layer is used as a wire to enhance the conductivity, the carbon working layer is the working electrode, the counter electrode area and the tail connection, and the silver-doped silver chloride layer is the reference electrode. After printing, each layer needs to be dried at 100°C for 40 minutes, and the insulating layer needs to be cured under ultraviolet light for 20 minutes. Silver wire layer screen production requirements: mesh 200 mesh, film thickness 11-12μm, tension coefficient 22N / cm, net opening angle 45°; carbon worki...

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Abstract

The invention discloses a polymeric alizarin functionalized single-wall carbon nanohorn composite material-based electrochemical sensor. The alizarin functionalized single-walled carbon nanohorn solution can be prepared through non-covalent functionalization action, and the dispersity of single-walled carbon nanohorn in water can be enhanced. In addition, a polymeric alizarin-modified thin film printed chip electrode can be prepared by utilizing cyclic voltammetry electrochemical polymerization. According to the prepared sensor, the significant synergistic enhancement effect on the electrochemical determination of phenol compounds can be achieved by utilizing the excellent conductivity of the single-wall carbon nanohorn and the electric catalysis activity to the phenol compounds. The on-site fast detection to phenol pollutants can be realized, and the polymeric alizarin functionalized single-wall carbon nanohorn composite material-based electrochemical sensor is easy and portable, the method is simple and convenient and high in accuracy, good in sensitivity and low in detection limit.

Description

technical field [0001] The invention belongs to the electrochemical sensor in the technical field of analytical instruments, and in particular relates to electrochemically polymerizing and modifying alizarin red functionalized carbon nanohorns on the electrode surface of a film printing chip to realize the electrochemical catalytic measurement of phenolic pollutants. Background technique [0002] In the production of tanning, cosmetics, chemical, pharmaceutical and other industries, a large amount of phenolic wastewater will be produced, and a large amount of wastewater will be discharged into the water body. The phenolic pollutants entering the water body will seriously endanger human health. At present, methods for the determination of phenolic pollutants include chromatography, spectroscopy, and electrochemical methods. Among them, electrochemical sensors based on thin-film printed chip electrodes have attracted more attention due to their advantages of high sensitivity,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48
Inventor 宋伟朱超云
Owner NANJING COLLEGE OF CHEM TECH
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