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Fluorescent sensor based on layered double hydroxides, pyrene-containing graphene oxide composite material and preparation method and application of pyrene-containing graphene oxide composite material

A composite material and graphene technology, which is applied in the fields of chemical synthesis and cation detection, can solve the problem of fewer chemical sensors and achieve strong recognition ability and excellent fluorescence recognition effect

Pending Publication Date: 2022-01-14
福建省海凝环保科技有限公司
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Problems solved by technology

However, there are few reports on chemical sensors for mercury ion detection.

Method used

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  • Fluorescent sensor based on layered double hydroxides, pyrene-containing graphene oxide composite material and preparation method and application of pyrene-containing graphene oxide composite material
  • Fluorescent sensor based on layered double hydroxides, pyrene-containing graphene oxide composite material and preparation method and application of pyrene-containing graphene oxide composite material
  • Fluorescent sensor based on layered double hydroxides, pyrene-containing graphene oxide composite material and preparation method and application of pyrene-containing graphene oxide composite material

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Embodiment Construction

[0050] The present invention will be further described below through specific embodiments.

[0051] The layered double hydroxide-based fluorescence sensor is composed of magnesium-aluminum hydrotalcite and pyrene-containing graphene oxide composite material.

[0052] Pyrene-containing graphene oxide composite material is composed of graphene oxide and 1-aminopyrene, and its preparation method comprises the following steps:

[0053] Step 1, the preparation of graphene oxide: take 3g of graphite and pass it through a 200-mesh sieve and then evenly mix it with 5g of anhydrous sodium nitrate, slowly add it to the three-necked flask containing 200mL of concentrated sulfuric acid in the ice bath, and use a stirrer. Stir vigorously; at the same time slowly add KMnO using a dropping funnel 4 After the reaction reaches the end point, slowly drop about 23 mL of 4% H into the three-necked flask using a dropping funnel. 2 O 2 Used to restore remaining KMnO 4 and MnO 2 , making it col...

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Abstract

The invention discloses a fluorescent sensor based on layered double hydroxides, a pyrene-containing graphene oxide composite material and a preparation method and application of the pyrene-containing graphene oxide composite material, wherein the pyrene-containing graphene oxide composite material is formed by compounding graphene oxide and 1-aminopyrene. The pyrene-containing graphene oxide composite material prepared by the preparation method has strong recognition ability to stannous ions and ferrous ions. The fluorescent probe has an excellent fluorescent recognition effect on the target objects stannous ions and ferrous ions, and can be applied to detection and recognition of stannous ions and ferrous ions in the fields of environment and life science.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis and cation detection, and in particular relates to a layered double hydroxide-based fluorescence sensor and a pyrene-containing graphene oxide composite material, a preparation method and an application thereof. Background technique [0002] Chemical sensor is a new type of micro and trace analysis technology developed in recent years. Chemical sensor refers to a kind of molecular size or larger than molecular size that can give real-time signals when interacting with the analyte. Molecular device; it is a functional element that converts the type and concentration of a specific chemical substance into a detection signal. It is mainly used to directly or indirectly cause the change of the light signal when the light-sensitive material and the molecules, ions or biological substances in the measured substance are in contact with each other, so that after a few chemical substances are add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C09K11/65G01N21/64
CPCC09K11/06C09K11/65G01N21/643C09K2211/1011G01N2021/6432
Inventor 郭文恩张建敏毛祥华杨磊郭恩光
Owner 福建省海凝环保科技有限公司
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