agnr/o-g-c 3 no 4 Substrate, its preparation method and its application in the sensitive detection of recyclable SERS

An o-g-c3n4, substrate technology, applied in the field of SERS substrate, can solve the problems of SERS activity reduction, oxidation, weak reusability, etc., and achieve the effects of simple preparation method, improved stability, high reproducibility and stability
CN108982471BActive Publication Date: 2021-01-08XUZHOU NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XUZHOU NORMAL UNIVERSITY
Publication Date
2021-01-08

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Abstract

In the preparation method of AgNR / O-g-C3N4 substrate, O-g-C3N4 modification is carried out on the surface of AgNR to prepare multi-performance nanostructures for sensitive and recyclable SERS analysis. The AgNR / O-g-C3N4 substrate prepared by the preparation method and application thereof in recyclable SERS sensitive detection is disclosed. The method for preparing the AgNR / O-g-C3N4 substrate provided by the invention is simple; in the AgNR / O-g-C3N4 substrate provided by the invention, the O-g-C3N4 on the AgNR / O-g-C3N4 substrate can improve the adsorption capacity of the molecule and improve the SERS performance of the AgNRs and can avoid direct contact between AgNR and the atmosphere which improves the stability of AgNRs; the AgNR / O-g-C3N4 substrate of the invention can produce a significant Raman enhancement effect, and the SERS signal intensity obtained from AgNR / O-g-C3N4 is about three times stronger than unmodified AgNR, and the SERS signal intensity has high reproducibility and stability, has excellent photodegradability, and can perform multiple cycles of detection.
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Description

technical field

[0001] The present invention relates to SERS substrates, in particular to AgNR / O-g-C 3 N 4 The substrate, its preparation method and its application in the sensitive detection of recyclable SERS. Background technique

[0002] Due to rapid population growth and increased agricultural and industrial activities, large amounts of organic pollutants are discharged into the aquatic environment. These pollutants can enter organisms through the biological chain, affect human health, and even have acute toxicity and carcinogenicity. Current common techniques such as fluorescence spectroscopy, chromatographic analysis, capillary electrophoresis and electrochemical analysis have achieved the detection of these environmental organic pollutants, but these methods are usually technically demanding, time-consuming and low-sensitivity. Therefore, it has attracted worldwide attention. Currently, global efforts are underway to develop a rapid and sensitive technique to eff...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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