BiVO4 full mesoporous fiber material and preparation method thereof

A fiber material and fully mesoporous technology, applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve problems such as difficult to achieve fine structure control, and achieve the effect of improving electrical conductivity

Inactive Publication Date: 2016-03-23
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can only obtain mesoporous materials at different temperatures, and it is difficult to achieve fine control of their structures.

Method used

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  • BiVO4 full mesoporous fiber material and preparation method thereof
  • BiVO4 full mesoporous fiber material and preparation method thereof
  • BiVO4 full mesoporous fiber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1

[0039] Weigh 0.7g (10%) of polyvinylpyrrolidone (PVP), bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O) 1.21g (17.3%) and vanadyl acetylacetonate (VO(acac) 2 ) 0.662g (9.5%) dissolved in a mixture of 2.5g of absolute ethanol, 2.5g of NN dimethylformamide (DMF) and 2g of glacial acetic acid, stirred and mixed with a magnet for 6 hours at room temperature to obtain a dark green Transparent solution. After the solution to be spun is allowed to stand still, measure 6ml into the plastic needle tube and place it on the micro-injection pump, and set the injection speed to 0.2mm / min. The metal needle is used as the electrospinning anode, and the aluminum foil-coated drum is used as the cathode of the receiving material. The distance between the anode and the cathode is 20cm. Electrospinning is carried out under a high voltage of 12kV (the spinning environment is room temperature (20-30℃). ), humidity: 50-60%), to prepare organic precursor fiber materials. Then plac...

Example Embodiment

[0040] Example 2

[0041] Weigh 0.7g polyvinylpyrrolidone (PVP), bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O) 1.21g and vanadyl acetylacetonate (VO(acac) 2 ) 0.662g was dissolved in a mixture of 2.5g of absolute ethanol, 2.5g of NN dimethylformamide (DMF) and 2g of glacial acetic acid, stirred and mixed at room temperature for 6 hours, then 0.5g of diisopropyl azodicarboxylate ( Foaming agent, DIPA) and continue to stir to obtain a light brown-green transparent solution. After the microemulsion to be spun is allowed to stand still, measure 6ml into the plastic needle tube, and place it on the micro-injection pump, and set the injection speed to 0.2mm / min. The metal needle is used as the electrospinning anode, and the wire mesh is used as the cathode of the receiving material. The distance between the anode and the cathode is 20cm. Electrospinning is carried out under a high voltage of 12kV (the environment during spinning is 30℃, humidity: 50-60%), Preparation of organic p...

Example Embodiment

[0042] Example 3

[0043] Weigh 0.7g polyvinylpyrrolidone (PVP), bismuth nitrate pentahydrate (Bi(NO 3 ) 3 ·5H 2 O) 1.21g and vanadyl acetylacetonate (VO(acac) 2 ) 0.662g was dissolved in a mixture of 2.5g of absolute ethanol, 2.5g of NN dimethylformamide (DMF) and 2g of glacial acetic acid, stirred and mixed for 6 hours at room temperature, and then added 1.06g of diisopropyl azodicarboxylate ( Foaming agent, DIPA) and continue to stir to obtain a light brown-green transparent solution. After the microemulsion to be spun is allowed to stand still, measure 6ml into the plastic needle tube, and place it on the micro-injection pump, and set the injection speed to 0.2mm / min. The metal needle is used as the electrospinning anode, and the wire mesh is used as the cathode of the receiving material. The distance between the anode and the cathode is 20cm. Electrospinning is carried out under a high voltage of 12kV (the environment during spinning is 40℃, humidity: 30-40%), Preparation o...

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Abstract

The invention discloses a BiVO4 full mesoporous fiber material and a preparation method thereof. The fiber material comprises three elements including Bi, V and O; the surface of the fiber material adopts a porous structure; the fiber material comprises monoclinic BiVO4 crystals. According to a scheme, the BiVO4 fiber material with higher structured crystallinity is provided and further has excellent micropore distribution and good fine controllability of a microporous structure.

Description

technical field [0001] The invention relates to a porous fiber material and a preparation method thereof, in particular to a BiVO4 fully mesoporous fiber material and a preparation method thereof. Background technique [0002] Bismuth vanadate (BiVO 4 ) One-dimensional nanomaterials play an important role in the construction of nanoelectronic devices because of their non-toxicity, good chemical stability, and specific geometric shapes. Fully Mesoporous BiVO 4 While inheriting the advantages of traditional one-dimensional nanomaterials, nanofibers also have unique properties of high specific surface area and large pore volume, and have wider application value in the fields of catalysis, energy, sensing, and medical treatment. [0003] Since the use of solar clean energy has attracted widespread attention, the development of visible photocatalysts has received increasing attention. Therefore, finding a photocatalyst with higher photocatalytic activity and greater use value ...

Claims

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Application Information

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IPC IPC(8): D01F9/08D01F1/10D01D5/00
CPCD01F9/08D01D5/0007D01F1/10
Inventor 杨为佑刘华兵侯慧林
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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