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Method for quickly preparing silver nanocluster with strong fluorescence emission

A fluorescence emission, silver nanocluster technology, applied in nanotechnology and other directions, can solve the problems to be further improved, and achieve the effects of convenient large-scale synthesis, strong stability and easy operation

Inactive Publication Date: 2014-12-24
HUNAN UNIV OF SCI & TECH
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Problems solved by technology

At present, there are many methods for synthesizing silver nanoclusters, including chemical reduction method, photoreduction method, template method, radiation method, ultrasonic method, inverse microemulsion method, etc., but these synthesis methods still need to be further improved in terms of synthesis speed, stability and strength. improve

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  • Method for quickly preparing silver nanocluster with strong fluorescence emission
  • Method for quickly preparing silver nanocluster with strong fluorescence emission
  • Method for quickly preparing silver nanocluster with strong fluorescence emission

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with specific experimental examples.

[0012] (1) Preparation of the solution used:

[0013] Weigh 0.0849 g AgNO 3 Prepare 50 mL of 0.01 M AgNO from the solid 3 solution, then first dilute 50 mL 1.0×10 -3 M AgNO 3 solution, again by 1.0 x 10 -3 M diluted 250 mL 1.0×10 - 4 M AgNO 3 stock solution; weigh 0.0154 g Amino Black 10B to prepare 50 mL 1.0×10 -4 Amino Black 10B stock solution of M; weigh 0.0189 g NaBH 4 Prepare 50 mL of 0.1 M NaBH from the solid 4 stock solution.

[0014] (2) Preparation of silver nanoclusters:

[0015] Take 14.75 mL of twice distilled water in a 50 mL Erlenmeyer flask, and add 2.0 mL of AgNO 3 (1.0×10 -4 M) solution, 0.25 mL NaBH 4 (0.1 M) solution and 3.0 mL Amino Black 10B (5.0×10 -4 M). After stirring at 60°C for 10 min, silver nanoclusters with strong fluorescence emission can be obtained.

[0016] (3) Optimization process of silver nanoclust...

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Abstract

The invention relates to a method for quickly preparing a silver nanocluster with strong fluorescence emission. The method is characterized in that by volume, 14.75 parts of redistilled water is put into a container, 2.0 parts of AgNO3 solution, 0.25 parts of NaBH4 solution and 3.0 parts of amino black 10B are added into a thermostat water bath in sequence in a mixing condition, so as to be mixed for 3 to 90 min at 30-80 DEG C, and then the silver nanocluster with strong fluorescence emission can be obtained. According to the method, a biological dye of amino black is used as a stabilizing agent, and the silver nanocluster with strong fluorescence emission can be prepared after 10 min. The method has the advantages of easiness in obtaining raw materials, simple system, short synthetic time, strong fluorescence and smaller size.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a kind of amino black 10B as a stabilizer, using NaBH 4 reduced AgNO 3 A method for the rapid synthesis of silver nanoclusters with strong fluorescence emission. Background technique [0002] Noble metal nanoclusters have become one of the hotspots in the field of nanomaterials research in recent years due to their small size effect, unique surface effect, electrical and chemical properties. Due to its small size, non-toxicity, and photostability, silver nanoclusters have broad application prospects as a new type of fluorescent probe in the fields of chemical detection, biomarkers, molecular diagnostics, and gene therapy. . At present, there are many methods for synthesizing silver nanoclusters, including chemical reduction method, photoreduction method, template method, radiation method, ultrasonic method, inverse microemulsion method, etc., but these synthesis methods still ...

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Application Information

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IPC IPC(8): B22F9/24B82Y40/00
Inventor 龙云飞马芳芳彭轶博
Owner HUNAN UNIV OF SCI & TECH
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