A kind of preparation method of germanium oxide nanowire

Abstract

The invention discloses a preparation method of germanium oxide nanowires. The preparation method comprises the following steps: adding an appropriate amount of ethylenediamine into a cobalt nitrate solution soaking a certain amount of germanium oxide, and placing mixed materials in a hydrothermal environment for reaction to obtain an initial product after the reaction, wherein the solid-liquid ratio of germanium oxide to the cobalt nitrate solution is 0.02-0.2, the concentration of the cobalt nitrate solution is 0.5-2mol / l, the solid-liquid ratio of germanium oxide to ethylenediamine is 0.02-0.2, the temperature of the hydrothermal reaction is 180-200 DEG C, and the hydrothermal reaction time is 1-5 days; and sequentially washing the initial product with ethanol and water, and drying after cleaning. The germanium oxide nanowires obtained by the preparation method disclosed by the invention have great fluorescence activity, very high specific surface area and nature of being capable of regulating and controlling thickness and length.

Description

technical field [0001] The invention relates to a preparation method of germanium oxide nanowires. Background technique [0002] One-dimensional materials, including nanowires, nanotubes, and nanorods, have microscopic one-dimensional structures and large specific surface areas. Therefore, they have broad application prospects in the fields of catalysis, environmental protection, and other functional materials, and have become the main research area in recent years. One of the hot spots. The germanium oxide nanowire itself has certain fluorescence activity and has adjustable characteristics, so the germanium oxide nanowire has a wide range of uses in the fields of optics, electrochemistry, catalysis, adsorption and separation, so the synthesis of germanium oxide nanowires has become an important issue in recent years. A research hotspot in the field of materials. [0003] At present, the synthesis of germanium oxide nanowires mainly relies on high temperature chemical vapo...

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Problems solved by technology

This method can easily obtain germanium oxide nanowires, but the required reaction conditions are very harsh, and this method cannot meet the requirements of large-scale production of germanium oxide nanowires; the template method is to grow germanium oxide nanowires through the action of germanium source and template agent. wire, and then the template agent is removed by calcination or chemical etching, and finally germanium oxide nanowires are obtained

This method does not require a high temperature and can grow nanowires under relatively mild conditions, but it needs to consume templates, the synthesis cost is high, and the roasting of templates will also pollute the environment and is also not suitable for large-scale production; solution method The temperature required is not high, but the solution used cannot be reused and can only be poured out, which will easily cause environmental pollution and waste the reaction solution; the laser ablation method is to mix germanium, germanium oxide and iron catalyst in a certain proportion to make a target, and then Then at high temperature, use laser etching to grow germanium oxide nanowires

Like the first two methods, this method requires high temperature and requires laser etching, which brings great difficulties to large-scale industrial production

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