Preparation method for one-step synthesis of silver nanowires at room temperature

Abstract

The invention discloses a preparation method for one-step synthesis of silver nanowires at a room temperature. The method comprises the following steps that a CTAB aqueous solution of 0.1 mM is added into a silver nitrate stock solution for attenuation, wherein the concentration of the silver nitrate stock solution is 4 mM, and the concentration after attenuation is 0.4 mM; glucosum anhydricum and sodium hydroxide are weighed and dissolved into water, wherein the concentration ratio and the mass ratio of the glucosum anhydricum to the sodium hydroxide are both 1%; and a glucose solution and a sodium hydroxide solution are sequentially added into the silver nitrate solution, and the solutions are fully mixed through slight shaking. According to the technical scheme, operation is easy, the number of required facilities is small, the preparation cost is low, the silver nanowires can be prepared under the condition of the room temperature, and the growth process of the silver nanowires can be monitored easily.

Description

technical field [0001] The invention relates to the technical field of silver nanowires, in particular to a preparation method for synthesizing silver nanowires in one step at room temperature. Background technique [0002] Commonly used one-dimensional metal nanomaterials, such as nanowires, nanorods, and nanotubes, have attracted extensive attention due to their unique optical, electrical, mechanical, and catalytic properties. One-dimensional nanomaterials will become important components of nano-integrated circuits and nano-semiconductor devices. Silver nanowires have high electrical and thermal conductivity effects, and can be used as wires for circuits, catalysts for chemical reactions, surface-enhanced Raman scattering substrates, and optical waveguide media. At present, the preparation methods of silver nanowires mainly include: nanolithography technology, template method (alumina or polymer film, carbon nanotube, DNA, etc.), seed growth method and one-step synthesis...

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Problems solved by technology

These methods still have disadvantages: the synthesis operation needs a certain ambient temperature to carry out, many equipments are needed, the operation is troublesome, the preparation cost is high, and the growth process of silver nanowires is difficult to monitor.

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