Construction method of photoelectrochemical sensor for non-labeling detection of 4-chlorophenol

A photoelectrochemical and label detection technology, applied in the field of electrochemical detection, can solve the problems of being unsuitable for low-cost rapid detection, expensive equipment, complicated operation, etc., and achieve the effect of excellent photoelectric activity and rapid detection

Active Publication Date: 2019-01-04
江阴智产汇知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing methods for detecting 4-CP include gas chromatography, high performance liquid chromatography and other research methods. Although these methods can meet the requirements of sensitivity and specificity detection, they have certain limitations in practical application.
For example, the equipment used is expensive, the operation is complicated, and professional technicians are required, so it is not suitable for low-cost, on-site rapid detection

Method used

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  • Construction method of photoelectrochemical sensor for non-labeling detection of 4-chlorophenol
  • Construction method of photoelectrochemical sensor for non-labeling detection of 4-chlorophenol
  • Construction method of photoelectrochemical sensor for non-labeling detection of 4-chlorophenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1, the step of preparing graphite phase carbon nitride (GCN):

[0031] First weigh 0.6g of cyanuric chloride and 15mL of acetonitrile and mix them evenly, slowly transfer 0.1g of melamine into it, and after it is completely dissolved, transfer the resulting solution to an autoclave for solvent heat treatment, and place the autoclave at 140°C. After reacting for 48h, the solid product obtained was GCN.

[0032] Step 2, the step of preparing Ag / GCN / carbon sphere (Ag / GCN / C) ternary photoelectric active material:

[0033] First weigh 0.01g GCN and ultrasonically disperse it in 50mL water to obtain solution A, then weigh 0.001g AgNO 3 Dissolved in solution A to obtain solution B. Add solution B, and quickly add 0.001 g of ascorbic acid after solution B boils, keep stirring, and the reaction time is 8 hours to obtain Ag / GCN / C.

[0034] Step 3, constructing a photoelectrochemical sensor for sensitive non-labeled detection of 4-chlorophenol;

[0035] In step 3, prepare...

Embodiment 2

[0038] Step 1, the step of preparing graphite phase carbon nitride (GCN):

[0039] First weigh 1.7g of cyanuric chloride and 40mL of acetonitrile and mix them evenly, then slowly transfer 0.5g of melamine into it, and after it is completely dissolved, transfer the resulting solution to an autoclave for solvent heat treatment, and place the autoclave at 200°C. After reacting for 48h, the solid product obtained was GCN.

[0040] Step 2, the step of preparing Ag / GCN / carbon sphere (Ag / GCN / C) ternary photoelectric active material:

[0041] First weigh 0.04g GCN and ultrasonically disperse it in 50mL water to obtain solution A, then weigh 0.007g AgNO 3 Dissolved in solution A to obtain solution B. Add solution B, and quickly add 0.005 g of ascorbic acid after solution B boils, keep stirring, and the reaction time is 12 hours to obtain Ag / GCN / C.

[0042] Step 3, constructing a photoelectrochemical sensor for sensitive non-labeled detection of 4-chlorophenol;

[0043] In step 3, p...

Embodiment 3

[0046] Step 1, the step of preparing graphite phase carbon nitride (GCN):

[0047]First weigh 0.9g of cyanuric chloride and 20mL of acetonitrile and mix them evenly, then slowly transfer 0.3g of melamine into it, and after it is completely dissolved, transfer the resulting solution to an autoclave for solvent heat treatment, and place the autoclave at 160°C. After reacting for 48h, the solid product obtained was GCN.

[0048] Step 2, the step of preparing Ag / GCN / carbon sphere (Ag / GCN / C) ternary photoelectric active material:

[0049] First weigh 0.02g GCN and ultrasonically disperse it in 50mL water to obtain solution A, then weigh 0.0035g AgNO 3 Dissolved in solution A to obtain solution B. Add solution B, and quickly add 0.0025 g of ascorbic acid after solution B boils, continue stirring, and the reaction time is 12 hours to obtain Ag / GCN / C.

[0050] Step 3, constructing a photoelectrochemical sensor for sensitive non-labeled detection of 4-chlorophenol;

[0051] In step...

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Abstract

The invention belongs to the field of electrochemical detection, and particularly provides a construction method of a photoelectrochemical sensor for non-labeling detection of 4-chlorophenol. The construction method comprises the following steps that step 1, graphite-phase carbon nitride (GCN) is prepared; step 2, an Ag/GCN/carbon sphere (Ag/GCN/C) ternary photoelectric active material is prepared; step 3, the photoelectrochemical sensor for the non-labeling detection of 4-chlorophenol is constructed. Compared with a traditional detection method, a photoelectrochemical detection method of 4-chlorophenol has the advantages that the operation is simpler, more convenient and more flexible, instrument and equipment are simpler, the reagent dose is less, and the detection cost is low.

Description

technical field [0001] The invention belongs to the field of electrochemical detection, and refers to a construction method and application of a photoelectrochemical sensor for non-labeled detection of 4-chlorophenol in the environment. Background technique [0002] 4-Chlorophenol (4-CP) has been included in the list of pollutants by the U.S. Environmental Protection Agency and the European Union because of its severe toxicity and refractory degradation. Therefore, the detection and treatment of 4-CP must be focused and strengthened implement. Many researchers have devoted themselves to developing simple, rapid and sensitive methods for the detection of 4-CP. Existing methods for detecting 4-CP include gas chromatography, high performance liquid chromatography and other research methods. Although these methods can meet the requirements of sensitivity and specificity detection, they have certain limitations in practical application. For example, the equipment used is expens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/416
CPCG01N27/416
Inventor 李赫楠赵煜敖华琴李嘉雯徐丽
Owner 江阴智产汇知识产权运营有限公司
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