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
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[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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