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One-step-method-based method for synthesizing noble-metal-loaded solid carbon quantum dot sensor

A technology for synthesizing supported, carbon quantum dots for electrochemical detection

Active Publication Date: 2019-09-20
SHANGHAI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Because of its good plasticity and electrical conductivity, carbon materials are used in all aspects of life: such as energy, environment, life safety and other issues related to the national economy and people's livelihood. In recent years, the Chinese government has also continuously increased research investment in these areas. Various new materials and new technologies are introduced to meet the challenges of the new era. From graphite and graphene to carbon nanotubes and carbon quantum dots, scientists continue to use different substances to dope and load them to change their structures and improve their performance. At present, there is no bimetallic-loaded carbon quantum in the market for the detection of acetaminophen, the main component of cold medicine.

Method used

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  • One-step-method-based method for synthesizing noble-metal-loaded solid carbon quantum dot sensor
  • One-step-method-based method for synthesizing noble-metal-loaded solid carbon quantum dot sensor
  • One-step-method-based method for synthesizing noble-metal-loaded solid carbon quantum dot sensor

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Embodiment

[0039] see Figure 1-17 , the present invention provides a technical solution: a method for synthesizing a noble metal-loaded solid carbon quantum dot sensor in one step, comprising the following steps;

[0040] (a) AuPd / S-CQDs composite materials were prepared by a one-pot method: firstly, 20mL-35mL high-purity water was added to the reaction kettle, and then 15mM chloroauric acid and palladium chloride were added, and 0.48g dopamine and 0.45g glucose were added at the same time, Then add 5mL of oleylamine, and then heat in the hydrothermal reaction kettle at 150°C-200°C for 12-15 hours. After the reaction is stopped, after the system is cooled to room temperature, the product is transferred to a centrifuge tube, and the product is heated at a speed of 8000-10000rpm Centrifuge for 10 minutes, wash the precipitate several times with n-hexane and ethanol, repeat 3-4 times, until the supernatant is colorless, and finally transfer the product to a vacuum oven, and dry it at 60°C ...

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Abstract

The invention discloses a one-step-method-based method for synthesizing a noble-metal-loaded solid carbon quantum dot sensor. The method comprising the following steps: (a), preparing a AuPd / S-CQDs composite by a one-pot method; and (b), carrying out calcination on the AuPd / S-CQDs composite material and constructing a AuPd / S-CQDs composite sensor. Therefore, a problem that the double metal-loaded carbon quantum can not applied to the detection sensor of the acetaminophen as the main component of the cold medicine is solved.

Description

technical field [0001] The invention relates to the technical field of electrochemical detection, in particular to a method for synthesizing a noble metal-loaded solid carbon quantum dot sensor in one step. Background technique [0002] In today's society, the research on carbon materials is in full swing. Carbon quantum dots (CQDs), which are discrete quasi-spherical nanoparticles with a size of less than 10 nm, have become a rising star in a series of environmental and energy applications. Due to their unique physical and chemical, Optical and electrical properties, carbon quantum dots have unique applications in the fields of chemical catalysis, photocatalysis, electrocatalysis and energy storage, such as batteries and capacitors, including photochemical and electrochemical sensors. [0003] Because of its good plasticity and electrical conductivity, carbon materials are used in all aspects of life: such as energy, environment, life safety and other issues related to the ...

Claims

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Application Information

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IPC IPC(8): G01N27/48G01N27/30G01N27/06C09K11/87C09K11/02
CPCC09K11/025C09K11/873G01N27/06G01N27/308G01N27/48
Inventor 许武韬董俊萍徐甲强陈杨
Owner SHANGHAI UNIV