Co@cn nanomaterial and application thereof in quantitative detection of 3-amino phenol

By preparing sheet-like Co@CN nanomaterials through freeze-drying and combining them with colorimetric sensing, the problems of complexity and high cost in the detection of 3-aminophenol in existing technologies have been solved, realizing a simple and efficient quantitative detection of 3AP and improving detection sensitivity and catalytic activity.

CN116943703BActive Publication Date: 2025-11-07JIANGSU UNIV OF SCI & TECH
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Patent Information

Application Number
CN202310865227.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-14
Publication Date
2025-11-07
Estimated Expiration
2043-07-14

AI Technical Summary

Technical Problem

Existing techniques for detecting 3-aminophenol (3AP) in environmental samples are complex, costly, and require expensive equipment. Furthermore, methods for preparing Co@CN nanomaterials suffer from issues such as high temperature and pressure, increased costs due to template methods, and structural instability.

Method used

Flake-shaped Co@CN nanomaterials were prepared by freeze-drying. The porous structure was preserved by freeze-drying, which increased the specific surface area. 3AP was then rapidly and quantitatively detected by colorimetric sensing. The catalytic active sites of the Co@CN nanomaterials were utilized to improve the detection sensitivity.

Benefits of technology

It achieves 3AP detection that is simple to operate, low in cost and high in accuracy, with a detection range of 0 to 36 μM and a detection limit of 2.84 μM. It solves the problems of cumbersome detection steps and high cost in the existing technology, and improves detection sensitivity and catalytic activity.

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Abstract

The application discloses a kind of Co@CN nano materials, Co@CN nano materials are prepared using the following method: gelatin is weighed and dissolved in deionized water, heated and uniformly dispersed, to obtain solution A;2-methylimidazole and cobalt nitrate hexahydrate are weighed and dissolved in deionized water respectively, to obtain solution B and solution C respectively;Solution B and solution C are sequentially added to solution A, heated in water bath and stirred, to make the solution uniformly mixed, to obtain uniform purple gel after cooling;The purple gel is freeze-dried, and the solid material after freeze-drying is placed in a tube furnace, nitrogen is introduced and calcined, to obtain Co@CN.The application also discloses the application of the above Co@CN nano material in quantitative detection of 3-aminophenol (3AP), the application can quickly and quantitatively detect 3AP in environmental samples, and is convenient to operate, high in detection accuracy, and has good recovery rate, thereby solving the problem of complicated operation steps and high cost in the quantitative detection of 3AP in environmental samples by high performance liquid chromatography.
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