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A copper oxide/carbon nanotube/carbon nitride electrochemical sensor for detecting paracetamol and its preparation method and application

A paracetamol and carbon nanotube technology, applied in the field of electrochemical analysis and detection, can solve problems such as accumulation of toxic metabolites, nephrotoxicity, liver toxicity, etc., and achieve the effects of improving electrical conductivity, increasing surface area, and enhancing catalytic ability

Active Publication Date: 2020-06-26
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, overuse of acetaminophen can lead to the accumulation of toxic metabolites, which can lead to hepatotoxicity and nephrotoxicity, which in turn damage organs such as the liver

Method used

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  • A copper oxide/carbon nanotube/carbon nitride electrochemical sensor for detecting paracetamol and its preparation method and application
  • A copper oxide/carbon nanotube/carbon nitride electrochemical sensor for detecting paracetamol and its preparation method and application
  • A copper oxide/carbon nanotube/carbon nitride electrochemical sensor for detecting paracetamol and its preparation method and application

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preparation example Construction

[0021] In a first typical embodiment of the present disclosure, a method for preparing a copper oxide / carbon nanotube / carbon nitride composite material is provided, the method comprising the following steps: carboxylated carbon nanotubes, carbon nitride and water Mix evenly, perform ultrasonic treatment; then add copper acetate, mix uniformly, perform ultrasonic treatment; dry after ultrasonic treatment, and then perform calcination under an inert gas atmosphere, and obtain a copper oxide / carbon nanotube / carbon nitride composite material after calcination.

[0022] g-C 3 N 4 The intrinsic structure of α has abundant and uniform nitrogen complexing agents, which can provide more metal coordination sites as catalytic active sites in the electrocatalytic process. g-C 3 N 4 The strong coordination between N atoms and Cu atoms in the composite can increase the active sites of the composite material, thereby improving the overall electrocatalytic activity of the material. CuO / CN...

Embodiment 1

[0057] Embodiment 1 carbon nitride (g-C 3 N 4 ) preparation

[0058] Weigh 3 g of melamine, heat it to 550° C. at a heating rate of 3° C. / min in an argon atmosphere, and keep it for 5 hours. After the end, it was naturally cooled to room temperature and taken out to obtain light yellow blocky carbon nitride solid. The carbon nitride solid obtained above was ground into a powder in a mortar, and then calcined for 2 hours in the same environment as the above synthesis conditions, and then naturally cooled to room temperature to obtain dark yellow carbon nitride powder. Take 50mg of carbon nitride and disperse it in secondary water with a dispersion concentration of 2mg / mL.

Embodiment 2

[0059] Embodiment 2 carboxylated carbon nanotubes (CNT)

[0060] Weigh 40mg of carbon nanotubes in a beaker, add 20mL of concentrated nitric acid (98w / w%), take it out after ultrasonication for six hours, wash with secondary water until neutral, transfer the cleaned carbon nanotubes to a vacuum drying oven, Dry at 60° C. for 24 hours, take out and obtain dry carboxylated carbon nanotubes, which are dispersed in an aqueous solution with a concentration of 2 mg / mL.

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Abstract

A copper oxide / carbon nanotube / carbon nitride electrochemical sensor for detecting acetaminophen, a preparation method therefor and an application thereof. The method comprises: mixing carboxylated carbon nanotubes, carbon nitride, and water uniformly, and performing sonication; then adding copper acetate, mixing uniformly, and performing sonication; and drying after the sonication, and then calcining in an inert gas atmosphere to obtain a copper oxide / carbon nanotube / carbon nitride composite material. A CuO / CNT / g-C3N4 composite modified electrode is prepared and used as an electrochemical sensor for detecting acetaminophen. The electrochemical result shows that the composite material has a good detection effect on acetaminophen.

Description

technical field [0001] The disclosure belongs to the field of electrochemical analysis and detection, and in particular relates to a copper oxide / carbon nanotube / carbon nitride electrochemical sensor for detecting acetaminophen and its preparation method and application. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Acetaminophen (N-acetyl-P-aminophenol or acetaminophen) is one of the most commonly used pain relievers and is widely used to relieve fever, cold, cough and pain such as headache, toothache and back pain etc. disease. Acetaminophen does not appear to have any serious side effects when consumed in prescribed doses. However, excessive use of acetaminophen can lead to the accumulation of toxic metabolites, which may lead to hepatotoxicity and nephrotoxicity, which in turn damage organs such as the liver and kidneys. Therefore, rapid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30G01N27/48
CPCG01N27/308G01N27/48
Inventor 张菲菲袁月环王宗花王海燕
Owner QINGDAO UNIV
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