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Solid ion carrier and preparation method and application thereof

An ionophore, solid-state technology, applied in the field of preparation and application of ionophore

Active Publication Date: 2020-07-24
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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  • Solid ion carrier and preparation method and application thereof
  • Solid ion carrier and preparation method and application thereof
  • Solid ion carrier and preparation method and application thereof

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 as well as a preparation method and application thereof. Graphene nanosheets, a conductive polymer monomer and a conductive polymer monomer containing a plurality of functional groups are stirred and subjected to ultrasonic treatment, an oxidant is added, then polymerization reaction is carried out under a water bath condition, so that the conductive polymer monomer and the conductive polymer monomer containing a plurality of functional groups are polymerized in situ on the graphene nanosheets to form a nano-composite consisting of conductive polymer nano-particles rich in functional groups and the graphene nanosheets, namely a solid ion carrier, wherein the solid ion carrier is mainly used as a lead ion carrier. Active functional groups in theion carrier are easier to expose, and complexing sites of the solid carrier are increased; and the graphene can endow the ion carrier with electron conduction and ion conduction capacities and conversion between the electron conduction and ion conduction capacities, so that the problem that electric signals are difficult to transmit in the existing all-solid-state sensing film is solved. A sensingfilm has fast and stable signal response due to the synergistic effect of the two.

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 Applications(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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