Boron-doped carbon-base fluorescent nano material, and preparation method and application thereof

Abstract

The invention discloses a boron-doped carbon-base fluorescent nano material, and a preparation method and application thereof. The surface B atom content of the nano material is 11.61%; and a hydrothermal process is utilized to prepare the boron-doped carbon-base (B-Cdots) fluorescent nano material which is used for detecting lead ions and copper ions. The simple hydrothermal synthesis process is adopted to synthesize the high-B-content B-Cdots fluorescent nano material, thereby effectively enhancing the B atom doping content, being beneficial to widening the application range of the carbon-base fluorescent material in environmental detection, solving the technical problem of demands for harsh experimental conditions by the synthesis of the B-doped nano material, and implementing the high-selectivity detection on heavy metal ions. The fluorescent experiment test indicates that the B-Cdots fluorescent nano material has favorable specific effects on Pb<2+> and Cu<2+>, and can implement high-sensitivity detection on the Pb<2+> and Cu<2+>. The product not only can be used for detecting heavy metal ions, but also can be used as a fluorescent probe for other fluorescent sensors and in the fields of pollutant treatment, preparation of fluorescent device materials and composite nano materials, and the like.

Description

technical field [0001] The invention relates to a boron-doped carbon-based fluorescent nanometer material, in particular to a detection method for detecting lead ions and copper ions in a water body through a low-concentration boron-doped carbon-based fluorescent nanometer material. Background technique [0002] In nature, heavy metal ion pollutants in the environment are a class of substances that can induce mutagenesis, teratogenicity and carcinogenicity in organisms. It can cause some diseases in humans, including certain liver diseases, kidney diseases, chronic cardiovascular diseases and some central nervous system diseases. Based on the development prospects of human beings and ecosystems, it is particularly important to develop a highly sensitive, highly selective, simple and effective method to monitor the content of heavy metal ions in the environment. As a new member of the family of fluorescent nanomaterials, fluorescent-doped carbon-based nanomaterials have been...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a novel boron-doped carbon-based fluorescent nanomaterial and its preparation method and application, so as to solve the problem of low quantum yield and poor selectivity of the products obtained by the preparation method of the prior art, which seriously affects the detection of metal ions. and sensitivity, and apply it to lead ion and copper ion in low concentration detection water body, the technical scheme adopted in the present invention is:

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