A method for preparing rare earth-doped yttrium oxide fluorescent nanoparticles by dbd technology

Abstract

The invention discloses a method for preparing rare earth-doped yttrium oxide fluorescent nanoparticles by DBD technology, the method comprising the following steps: (1) base metal organic matter and doped metal organic matter are carried out at a mass ratio of 10 to 40:1. Mixing, the mixture is ground as a reaction precursor; (2) the precursor obtained in step (1) is placed in a container, and the container is placed between the positive and negative electrodes of the plasma reactor; (3) after that, under an oxygen atmosphere, An alternating current is applied between the cathode and anode of the plasma reactor, the precursor is treated for a period of time, and the product is taken out and ground at intervals to obtain a powder containing rare earth-doped yttrium oxide nanoparticles. The invention adopts the DBD technique to prepare the powder of the rare earth-doped yttrium oxide fluorescent nano-particles by using the highly active oxidizing component in a one-step method. The method is simple and easy, green and efficient, and does not require further reaction under high temperature and high pressure, effectively reducing energy consumption.

Description

technical field [0001] The invention relates to the field of plasma, in particular to a method for preparing rare earth-doped yttrium oxide fluorescent nanoparticles through DBD technology. Background technique [0002] The special electronic configuration of rare earth elements makes them have unique optical, electrical, and magnetic properties. They are considered to be a treasure house of new materials and a vitamin that promotes the upgrading of traditional industries. In recent years, with the development of nanotechnology and sustainable life, rare earth nanomaterials have integrated rare earth characteristics and nano advantages, showing many peculiar properties such as small size effect, quantum effect, fluorescence characteristics and photoluminescence. Due to the rich energy levels of rare earth elements, the material can emit electrical radiation of various wavelengths from infrared light, visible light to ultraviolet light by doping different rare earth elements,...

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Problems solved by technology

[0005] Patent CN107217171A discloses a method of using liquid-liquid doped rare earth composite materials. This method inevitably contains raw material impurities in the synthesis, and the synthesis process needs to go through steps such as evaporation and crystallization, drying, roasting, doping, and reduction. It is cumbersome and time-consuming, and the purity of the product is limited due to the presence of impurities, so it is difficult to apply to experimental research in clinical medicine

[0006] The preparation of high-performance luminescent materials has a very high reference value in the field of life sciences. However, the high-temperature solid-phase method has poor controllability and uneven products; wet chemical methods generally take a long time, the process is cumbersome, and the synthesis process often involves toxic chemicals. Substances, such as organic solvents, stabilizers, etc., are harmful to the human body and the environment, and both methods are difficult to accurately and directly construct relevant nanostructures on the surface of a specified substrate

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