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Method for preparing short CaGeO3 fiber with electrostatic spinning technology

An electrospinning process and short fiber technology, which is applied in the field of composite metal oxide fiber material preparation technology, can solve the problems of few reports on the preparation of inorganic metal compound fiber materials

Inactive Publication Date: 2014-04-16
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on the preparation of inorganic metal compound fiber materials

Method used

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  • Method for preparing short CaGeO3 fiber with electrostatic spinning technology
  • Method for preparing short CaGeO3 fiber with electrostatic spinning technology
  • Method for preparing short CaGeO3 fiber with electrostatic spinning technology

Examples

Experimental program
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Effect test

Embodiment

[0020] This embodiment prepares CaGeO 3 The process and steps of staple fiber are as follows:

[0021] Weigh 2.5 g of germanium dioxide into a 200 mL beaker, add 10 ml of hydroiodic acid (45%), and heat until white water vapor emerges, accompanied by a slight "hissing" sound. After about 10 minutes, add 10 ml of hydroiodic acid (45%), heat, and the substance in the beaker gradually turns orange-red, accompanied by small bubbles escaping. Continue heating until it is evaporated to dryness to obtain an orange-red product; place the orange-red product on filter paper and press dry. Put the obtained massive solid into an oven and dry at 40°C to obtain germanium tetraiodide; weigh 1.470 g of calcium nitrate tetrahydrate and place it in a 100 ml beaker, add 20 ml of ethanol, and stir to dissolve. Weigh 1.330 g of germanium tetraiodide and place it in another 100 ml beaker, add 5 ml of acetylacetone, stir, and after half an hour, transfer the upper layer solution into cal...

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Abstract

The invention relates to a method for preparing a CaGeO3 metal oxide fiber provided with d10 electronic configuration with electrostatic spinning technology, belongs to the technical field of a preparation technology of a mixed metal oxide fiber material. The method is characterized in that germanium dioxide, hydroiodic acid and calcium nitrate tetrahydrate are taken as raw materials, and polyvinylpyrrolidone is taken as a stabilizer; and an electrospinning liquid containing polymer precursors is prepared with a sol-gel method, and the short CaGeO3 fiber is prepared with the electrostatic spinning technology. The technological process is simple, convenient and easy to practice, requirements for equipment are low, and a product phase with required higher purity degree can be obtained; the length of the CaGeO3 fiber prepared with the method ranges from 10 mu m to 30 m um, and the diameter is about 1.2 mu m; and the fiber material is expected to be applied to the fields of luminescence, photocatalysis, sensors and the like.

Description

technical field [0001] The present invention relates to the use of electrostatic spinning technology combined with sol-gel method to prepare 10 Electronic configuration of CaGeO 3 The invention relates to short metal oxide fibers, which belong to the technical field of preparation technology of composite metal oxide fiber materials. Background technique [0002] CaO 3 Belonging to the quasi-pyroxene structure group, each germanium atom (with a coordination number of 4) is connected to 6 oxygen atoms to form a three-dimensional inclined octahedron with a calcium atom in the middle. CaO 3 is a kind of d 10 electron configuration metal oxides, compared to having d 0 Transition metal oxides with electronic configurations have better visible light responsiveness and occupy an important place in the field of photocatalytic technology. [0003] Electrospinning is a simple, cheap and pollution-free process technology. However, at present, electrospinning is mostly used to pre...

Claims

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Application Information

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IPC IPC(8): D01F9/08
Inventor 张兆春周健刚赵军杨珊珊姜惠轶于振伟
Owner SHANGHAI UNIV
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