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Ball follow-shaped yttrium oxide self-assembly thin film and preparation method thereof

A yttrium oxide, self-assembly technology, applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., can solve the problems of unsuitability for large-scale production, high equipment requirements, limited use of yttrium oxide thin film structure, etc. Hydrothermal deposition, wide range of applications, effects suitable for large-scale synthesis

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the synthetic method of preparing yttrium oxide film in the prior art has high requirements on equipment, is not suitable for large-scale production, and the synthetic yttrium oxide film has a single defect due to structural limitations, and provides a spherical flower-shaped yttrium oxide self- Assembled thin film and its preparation method

Method used

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  • Ball follow-shaped yttrium oxide self-assembly thin film and preparation method thereof
  • Ball follow-shaped yttrium oxide self-assembly thin film and preparation method thereof
  • Ball follow-shaped yttrium oxide self-assembly thin film and preparation method thereof

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preparation example Construction

[0017] According to the preparation method of a spherical flower-shaped yttrium oxide self-assembled film provided by the present invention, the preparation method may include the following steps: (1) soaking the substrate impregnated with absolute ethanol in zinc nitrate and hexamethylene tetramine The first hydrothermal reaction is carried out in the solution to form a zinc oxide nanorod array film on the substrate; (2) The substrate obtained in step (1) with the zinc oxide nanorod array film is soaked in the yttrium nitrate solution for the second Secondary hydrothermal reaction.

[0018] According to the present invention, first, a zinc oxide nanorod array thin film is prepared on the surface of a target substrate. Specifically, the cleaned substrate can be soaked with absolute ethanol to make the surface of the substrate bear alkaline groups. Among them, the soaking time in ethanol plays an important role in the density of ZnO nanorod array films. Long-time immersion can...

Embodiment 1

[0033] Preparation of zinc oxide nanorod array thin film: Soak the cleaned quartz glass substrate with absolute ethanol for 3 days, 15ml each of the quartz glass substrate and 0.1M zinc nitrate and 0.1M hexamethylenetetraammonium solutions according to the volume ratio of 1: 1. Put it into a 50ml stainless steel hydrothermal kettle, conduct the first hydrothermal reaction at a constant temperature of 95°C for 4 hours, then dry the powder, and rinse the quartz glass substrate with the zinc oxide nanorod array film and dry it.

[0034] Put the quartz glass substrate with ZnO nanorod array thin film into 0.12M yttrium nitrate solution, and conduct the second hydrothermal reaction at 95°C for 2.5 hours to obtain a uniformly dispersed spherical flower-shaped self-assembled thin film of yttrium oxide ,Such as figure 1 As shown, the thickness of the spherical flower-shaped yttrium oxide self-assembled film is 5 microns.

Embodiment 2

[0036]The preparation of the zinc oxide nanorod array film is the same as in Example 1, except that the quartz glass substrate with the zinc oxide nanorod array film is placed in a 0.2M yttrium nitrate solution, and the second time is carried out at a constant temperature of 90°C. After hydrothermal reaction for 2 hours, a uniformly dispersed spherical flower-shaped yttrium oxide self-assembled film was obtained, such as figure 2 As shown, the thickness of the spherical flower-shaped yttrium oxide self-assembled film is 5 microns.

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Abstract

The invention discloses a ball follow-shaped yttrium oxide self-assembly thin film and a preparation method thereof, wherein the method comprises the following steps: (1) soaking a substrate impregnated with anhydrous ethanol in a solution of zinc nitrate and hexamethylenetetramine, and carrying out a first hydrothermal reaction, to generate a zinc oxide nanorod array thin film on the substrate; and (2) soaking the substrate obtained in the step (1) and generated with the zinc oxide nanorod array thin film in a yttrium nitrate solution, and carrying out a second hydrothermal reaction. The preparation method omits a template removal step, and is simple in process, low in energy consumption, flexible but not harsh in preparation conditions, and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of material preparation, more specifically, the invention relates to a spherical flower-shaped yttrium oxide self-assembled film and a preparation method thereof. Background technique [0002] Due to the rapid development of information, biotechnology, energy, environment, national defense and other industries, newer and higher requirements are put forward for the performance of materials, which meet the requirements of miniaturization, intelligence, high integration, high-density storage and ultra-fast transmission of components. The nano-thin films are a class of new materials with broad application prospects. Nano-films can be divided into two categories according to their uses, namely nano-functional films and nano-structured films. [0003] The so-called self-assembly refers to a technology in which basic structural units (molecules, nanomaterials, micron or larger scale substances) spontaneously form ordered st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F17/00
CPCC03C17/006C03C17/25C03C2217/42
Inventor 冯英杰姜健准张明森杨菁张伟
Owner CHINA PETROLEUM & CHEM CORP
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