Preparation method and application of dodecahedral zinc oxide nano material

A zinc oxide nano and dodecahedron technology, applied in zinc oxide/zinc hydroxide, nanotechnology, analytical materials, etc., to achieve the effect of improving gas sensing sensitivity and structural stability
CN112125328AActive Publication Date: 2020-12-25FUZHOU UNIVERSITY
0 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FUZHOU UNIVERSITY
Publication Date
2020-12-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method and application of a dodecahedral zinc oxide nano material. The preparation method specifically comprises the following steps of: carrying out complexationreaction on zinc nitrate hexahydrate and 2-methylimidazole to obtain a metal organic framework material (ZIF-8); washing the ZIF-8, carrying out vacuum drying, separately carrying out continuous high-temperature calcination in a tubular furnace under argon and air atmospheres to obtain a dodecahedral zinc oxide nano material; irradiating a nano semiconductor gas sensor prepared from the dodecahedral zinc oxide nano material by using an ultraviolet light source at a working temperature of 100-220 DEG C for acetone gas detection. The gas sensor prepared from the dodecahedral zinc oxide nano material has a remarkable enhancing effect on the gas sensitivity of acetone gas under the irradiation of an ultraviolet light source and has the characteristics of good selectivity, strong stability andthe like; the nano semiconductor gas sensor has a photo-assisted sensibilization characteristic and a wide application prospect.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention specifically relates to a preparation method and application of a dodecahedral zinc oxide nanometer material. Background technique

[0002] As a widely studied metal oxide, ZnO has many excellent physical and chemical properties, such as high stability, antibacterial properties, non-toxicity, and high excitation binding energy. The three-dimensional, porous structure of zinc oxide has better gas-sensing performance than one-dimensional and two-dimensional due to its larger specific surface area and active sites. At the same time, zinc oxide, as a typical semiconductor material, produces excellent photocatalytic activity under ultraviolet light, and has a high research prospect in the field of gas sensing.

[0003] Acetone (CH 3 COCH 3 ) is an organic solvent and flammable gas, which is widely used in many fields of industrial production, and is volatile and toxic at the same time. When the concentration of acetone in the environment r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More