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A kind of solid ion carrier and its preparation method and application

An ionophore, solid-state technology, applied in the field of ionophore preparation and application, to achieve stable potential response, easy non-combustibility, and overcome the effect of unstable potential response readings

Active Publication Date: 2021-09-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to find a non-toxic and environmentally friendly sensing membrane material that can tolerate the embedding of active component particles from a large number of organic materials, so as to realize the stable detection of lead ions, has not been reported.

Method used

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  • A kind of solid ion carrier and its preparation method and application
  • A kind of solid ion carrier and its preparation method and application
  • A kind of solid ion carrier and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2

[0103] Embodiment 1~2 thermal expansion method prepares expanded graphite

Embodiment 1

[0105] Weigh 0.5g of graphite in a porcelain crucible, sprinkle it into a plate placed in a muffle furnace at 800°C, take it out after 20 seconds, put it on a temperature-resistant test bench, cover it, and wait until it cools to close to room temperature Cool in a desiccator filled with blue silica gel. Obtain expanded graphite, weigh, measure volume, can calculate its expansion ratio 365mL / g.

Embodiment 2

[0107] Other conditions are the same as in Example 1, but a muffle furnace at 1200° C. is used instead, and the expansion ratio is 331 mL / g.

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Abstract

The invention relates to a solid ion carrier and its preparation method and application. Graphene nanosheets, conductive polymer monomers, and conductive polymer monomers containing various functional groups, after stirring, ultrasonication, adding an oxidant, and then performing a polymerization reaction under water bath conditions, so that the conductive polymer monomers and the conductive polymer monomers containing various functional groups Conductive polymer monomers are in-situ polymerized on graphene nanosheets to form a nanocomposite composed of functional group-rich conductive polymer nanoparticles and graphene nanosheets, that is, a solid-state ionophore, which is mainly used as a lead ionophore. The active functional groups in the ion carrier of the present invention are more easily exposed, increasing the complexation sites of the solid carrier; and graphene can endow the ion carrier with electronic conduction and ion conduction capabilities and the conversion between the two, which solves the current problem Difficulties in electrical signal transmission in all-solid-state sensing films. The synergistic effect between the two enables the sensing membrane to have a fast and stable signal response.

Description

technical field [0001] The invention relates to the technical field of preparation and application of ion carriers, in particular to a solid ion carrier and its preparation method and application. Background technique [0002] As one of the most serious environmental pollutants, lead ions may cause a series of diseases such as anemia, mental disorders, and permanent nerve damage to the human body. Therefore, accurate measurement of Pb in the environment 2+ The content of it is particularly important for the healthy growth of human beings as a whole. Traditional methods such as atomic absorption spectrometry (AAS) and inductively coupled plasma mass spectrometry (ICP-MS) have been used to detect trace amounts of Pb. 2+ Due to the high cost of equipment and the need for professional operators, the method can only be used for detection under laboratory conditions. However, the ion selective electrode method can well meet the requirements of outdoor operation and online detec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/02C08K3/04G01N27/333
CPCC08K2201/011C08K3/042G01N27/333C08L79/02
Inventor 李新贵黄美荣范武略
Owner TONGJI UNIV
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