Bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode as well as preparation method and application thereof

A technology of carbon nanotubes and composite electrodes, which is applied to the electrochemical variables of materials, material analysis through electromagnetic means, and measurement devices, etc., can solve the problems that have not yet been reported on bisphenol A electropolymerization film functionalized carbon nanotube electrodes, etc. Achieve good redox activity, low energy consumption, enhanced photosensitivity and photo-increased conductivity

Inactive Publication Date: 2017-01-04
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on carbon nanotube electrodes

Method used

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  • Bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode as well as preparation method and application thereof
  • Bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode as well as preparation method and application thereof
  • Bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0034] Example 1 Preparation of bisphenol A electropolymerization film functionalized carbon nanotube / cadmium sulfide composite electrode

[0035] The SWCNTSs / CdS / ITO electrode in this example is prepared by the following method:

[0036] (1) Preparation of CdS / ITO electrode: Using cyclic voltammetry (CV) electrodeposition technology, in the three-electrode system, the working electrode is indium tin oxide ITO conductive glass, the counter electrode is titanium sheet, and the reference electrode is saturated sweetener. Mercury electrode, the electrolyte is sodium thiosulfate solution containing 0.01mol / L cadmium chloride, 0.01mol / L pH 2.0, the potential range of deposition is -0.3V~-0.9V, and the sweep rate is 0.05V s -1 , the number of scanning circles is 100 circles; in order to remove the undeposited electrode, the modified electrode was immersed in double distilled water for 5 minutes, then taken out and dried in an oven at 40°C for 12 hours, and the CdS / ITO electrode was ...

Example Embodiment

[0041] Example 2 Visible light enhanced electropolymerization of bisphenol A on SWCNTs / CdS / ITO electrode

[0042] The SWCNTs / CdS / ITO electrode prepared in Example 1 promotes the electropolymerization of bisphenol A under visible light radiation, and the specific operation steps are as follows:

[0043] at 0.18mW cm -2 Under visible light radiation, differential pulse voltammetry electropolymerization technology is adopted. In the three-electrode system, the working electrode is SWCNTs / CdS / ITO electrode, the counter electrode is titanium sheet, the reference electrode is saturated calomel electrode, and the electrolyte is pH= 3.0 0.2mmol / L bisphenol A, 0.1mol / L sodium chloride solution, the potential range of deposition is -0.1V~1.0V, and the number of scanning circles is 10 circles, the results are as follows figure 2 As shown, the peak potential of the tenth differential pulse scan under visible light conditions is 0.322V, and the peak current is 96.8μA. and figure 1 Compar...

Example Embodiment

[0044] Example 3 Redox Activity Characterization of PBPA / SWCNTs / CdS / ITO Composite Electrode Made in the Present Invention

[0045] For the test of the redox activity of the PBPA / SWCNTs / CdS / ITO composite electrode constructed in Example 1, the specific steps are as follows:

[0046] In the three-electrode system, the working electrode is PBPA / SWCNTs / CdS / ITO electrode, the counter electrode is titanium sheet, and the reference electrode is saturated calomel electrode. , 0.02, 0.01 (unit: V / s, corresponding image 3 and Figure 4 Under the conditions of No. 1 to 6) to measure the change of the current with the potential change, the cyclic voltammogram is obtained as shown in image 3 and Figure 4 .

[0047] from image 3 and Figure 4 It can be seen that bisphenol A can be directly oxidized by continuous differential pulse voltammetry scanning and its oxidation product can be fixed on the SWCNTs / CdS / ITO electrode, and the prepared PBPA / SWCNTs / CdS / ITO electrode has good red...

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Abstract

The invention belongs to the technical field of preparation of functional composite electrodes and discloses a bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode as well as a preparation method and application thereof. The bisphenol A electro-polymerized film functional carbon nanotube/cadmium sulfide composite electrode is prepared by taking a single-walled carbon nanotube/cadmium sulfide electrode as a photo-anode, a titanium electrode as a counter electrode and a saturated calomel electrode as a reference electrode, and electro-polymerizing bisphenol A on the carbon nanotube/cadmium sulfide composite electrode under visible radiation through applying a continuous differential pulse voltammetry. The preparation method has the advantages of simplicity and convenience for operation, high controllability, low cost, environment protection and the like, and the prepared electrode has good oxidation-reduction activity, cooperatively enhanced light sensitivity and photosensitive conductivity.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional composite electrodes, and in particular relates to a bisphenol A electropolymerization film functionalized carbon nanotube / cadmium sulfide composite electrode and its preparation method and application. Background technique [0002] Bisphenol A (BPA) is an important organic chemical raw material, a monomer for the production of epoxy resin and polycarbonate, and can be used as an antioxidant and stabilizer for many plastics. Because bisphenol A contains phenolic hydroxyl groups, oxidation reactions can occur on the electrode surface, so bisphenol A can be degraded or detected by electrochemical methods, but because the oxidation products of bisphenol A on the electrode surface are easy to poison the electrode and cause electrochemical oxidation reactions. Termination, and the size of this poisoning mainly depends on the performance of the electrode, so it is necessary to find an ...

Claims

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Application Information

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IPC IPC(8): G01N27/30G01N27/48
CPCG01N27/308G01N27/48
Inventor 李晓丹黄明高邓强李红
Owner SOUTH CHINA NORMAL UNIVERSITY
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