Method for preparing zinc oxide nano-rod by using zinc quantum dot

Abstract

Disclosed is a preparing process for zinc oxide nano rods by zinc quantum dots, which utilizes zinc quantum dots to react with oxidation agent to prepare zinc oxide nano rods. The process comprises steps of putting zinc quantum dots which are 3-5 nm in size and over 95% in purity into a reacting device, completely substituting air in the reacting device with argon gas atmosphere, heating the reacting device to increase the temperature to 150 DEG C-300DEG C, keeping the temperature, thereby the argon gas carrying the oxidation agent can enter the reacting device and then achieving the contacting reaction with the zinc quantum dots, increasing flowing rate of the argon gas which carrying the oxidation agent, consciously providing oxidation agent to the reacting device until the reaction is finished, closing an oxidation agent inlet of the reacting device and leading pure argon gas into the reacting device, and then cooling the reacting device until the temperature reaches the indoor temperature, finally collecting the products in the reacting device, which is the zinc oxide nano. The preparing process has the advantages that the process needs no catalytic agent and does not pollute the products, the only secondary product in the preparing process is hydrogen gas which is non-pollution to environment, further the reaction temperature is low and the energy consumption is low and the obtained zinc oxide nano rods with specific growth direction are high in application value.

Description

technical field [0001] The invention relates to a method for preparing zinc oxide nano rods by using zinc quantum dots, and belongs to the technical field of nano material and nano structure preparation. Background technique [0002] Zinc oxide is a II-VI semiconductor material with important application value. It is one of the few oxide semiconductor materials that are easy to realize quantum size. It is also a hot spot in the research of short-wavelength semiconductor laser device materials in the world. Zinc oxide nanomaterials have good electrical conductivity, thermal conductivity, chemical stability, fluorescence, piezoelectricity, and the ability to absorb and scatter ultraviolet rays, and their application prospects are extremely broad. The preparation method, directional growth mechanism and performance research of zinc oxide one-dimensional nanostructures are an important source of invention innovation and high technology generation. [0003] Zinc oxide nanorods b...

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Problems solved by technology

The template method is complicated. When the template is removed by acid or alkali, the nanowires will gather together and their order will be destroyed.

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