Preparation method of high purity WO<3> mesoporous nano-belt

A nanobelt, high-purity technology, applied in the direction of textiles and papermaking, fiber treatment, artificial filament of inorganic raw materials, etc., can solve the problems of complex process and low purity, and achieve the effect of simple process and good repeatability

Active Publication Date: 2015-11-11
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And for one-dimensional WO 3 The preparation of mesoporous nanomaterials is still relatively small, only a few articles have been reported, and the process is complicated and the purity is low.

Method used

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  • Preparation method of high purity WO&lt;3&gt; mesoporous nano-belt
  • Preparation method of high purity WO&lt;3&gt; mesoporous nano-belt
  • Preparation method of high purity WO&lt;3&gt; mesoporous nano-belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Measure 1ml of absolute ethanol and 4ml of N,N-dimethylformamide (DMF) into a conical flask, weigh 0.4g of polyvinylpyrrolidone (PVP) and slowly add to the weighed In the mixed solution of water ethanol and DMF, stir at room temperature for 2h until a clear and transparent PVP solution is obtained; then weigh 2g of WCl 6 Quickly add to the dispersed PVP solution and continue to stir at room temperature for 0.5h until clear dark blue WCl is formed 6 / PVP solution; then weigh 0.8g of tea saponin and quickly add to the dispersed WCl 6 / PVP solution, continue to stir at room temperature for 0.5h until clear dark blue WCl is formed 6 / PVP / Tea-saponin solution.

[0051] After the prepared precursor spinning solution is left to stand, it is injected into the plastic needle tube and placed horizontally on the spinning machine. The metal needle (0.22mm) is used as the electrospinning anode, and the barbed wire is used as the cathode of the receiving material. The distance bet...

Embodiment 2

[0054] The only difference from Example 1 is the addition of 0.2g tea saponin, and the other processes are the same as in Example 1, and will not be repeated here.

Embodiment 3

[0056] Only difference with embodiment 1 is adding 0.5g tea saponin, other processes are identical with embodiment 1, repeat no more here.

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Abstract

The invention relates to a preparation method of a high purity WO<3> mesoporous nano-belt and belongs to the technical field of nano-fibers. The preparation method comprises the steps of preparing a precursor spinning solution, wherein polyvinylpyrrolidone, tungsten hexachloride and tea saponin are dissolved into solvent in sequence, all constituents are mixed uniformly, and the precursor spinning solution is obtained; conducting the electrostatic spinning on the precursor spinning solution, and obtaining an organic precursor nano-belt; conducting high temperature calcination on the organic precursor nano-belt, and obtaining the high purity WO<3> mesoporous nano-belt. According to the preparation method of the high purity WO<3> mesoporous nano-belt, the process is simple, the repeatability is good, the controllable transformation of a WO<3> one-dimensional nano-structure from traditional cylindrical fibers to the mesoporous nano-belt can be achieved only by controlling the content of the forming agent, namely the tea saponin, and the controllable preparation of high purity WO<3> mesoporous nano-belts of different width-diameter ratios can be further achieved.

Description

technical field [0001] The invention relates to a high-purity WO 3 The invention discloses a method for preparing a mesoporous nanobelt, which belongs to the technical field of nanofibers. Background technique [0002] Mesoporous materials have great applications in chemistry, life sciences, medicine, energy and the environment due to their large specific surface area of ​​nanomaterials and stable structure of macroscopic materials, as well as their unique pore structure. potential. One of its key foundations is how to realize the preparation of high-quality semiconductor mesoporous nanomaterials. [0003] Current WO 3 As a functional material, semiconductors have shown excellent properties in many fields such as color-changing display screens, gas-sensitive detection, and photocatalysis. If they are prepared into mesoporous nanomaterials, their performance can be further improved. Currently for mesoporous WO 3 The preparation of materials, the more mature one is mesopo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/08D01D5/00
Inventor 杨为佑贺之洋刘龙侯慧林郑金桔
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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