Method for synthesizing water-solubility fluorescence silver nanocluster by electrochemistry

Abstract

A method for synthesizing water-solubility fluorescence silver nanocluster by electrochemistry comprises the following steps: (1) preparing coordination agent, mass percentage concentration of the coordination agent in solution is 0.35% to 2%; (2) using acid solution to adjust potential of hydrogen (PH) of reaction system to be 6 to 8; and (3) using two pure silver bars as electrodes, interval between the electrodes are 8mm to 10mm, enabling direct current stabilized power supply to be conducted electrolytic reaction for 2min to 10min and obtaining fluorescence silver nanocluster water solution, wherein the reaction voltage is 4V to 8V. The method for synthesizing the water-solubility fluorescence silver nanocluster by the electrochemistry has the advantages of being simple in operation, easy to control, low in cost, fast in synthesizing, environment-friendly, and the like. The prepared water-solubility silver nanocluster has a fluorescence characteristic.

Description

technical field [0001] The invention relates to the technical field of preparation of fluorescent nanometer materials, in particular to an electrochemical synthesis method of water-soluble fluorescent silver nanoclusters. Background technique [0002] Fluorescent materials are widely used in many aspects such as biological diagnosis, cell labeling, imaging, etc., but the traditional organic fluorescent dyes are still mainly used at present. In addition, there are also fluorescent quantum dot materials. Organic fluorescent dyes have the disadvantages of high toxicity and poor resistance to fluorescent bleaching. Quantum dots also have the problem of high toxicity, and the particles are large, and there are certain problems in entering cells for labeling. In recent years, noble metal nanoclusters with fluorescent functions have received more and more attention, and are expected to replace or partially replace the currently used fluorescent materials. Compared with traditiona...

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Problems solved by technology

So far, the preparation of water-soluble fluorescent silver nanoclusters by electrochemical methods has not been reported.

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