a beaded cumn 2 o 4 /zno composite fiber preparation method and resulting product

A composite fiber and bead chain technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, textiles and papermaking, etc., can solve the difficult control of the stability and dispersion of MOFs particles in the precursor spinning solution, and the factors affecting the electrospinning process There are many issues that need to be further explored to achieve the effects of easy control of the reaction process, novel technical routes, and special microstructure

Active Publication Date: 2019-08-27
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no literature has reported the use of metal-organic frameworks (MOFs) to tune CuMn 2 o 4 The phase composition and microscopic morphology of one-dimensional static spinning fibers are different, on the one hand, it is because CuMn 2 o 4 There are many factors affecting the electrospinning process of fibers, and the control is complicated; on the other hand, the stability and dispersion of MOFs particles in the precursor spinning solution are difficult to control, and the formation of composite crystal phase structure and The regulatory mechanism needs to be further explored

Method used

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  • a beaded cumn <sub>2</sub> o <sub>4</sub> /zno composite fiber preparation method and resulting product
  • a beaded cumn <sub>2</sub> o <sub>4</sub> /zno composite fiber preparation method and resulting product
  • a beaded cumn <sub>2</sub> o <sub>4</sub> /zno composite fiber preparation method and resulting product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1.1 Zinc nitrate hexahydrate (Zn(NO) of 0.7419 g 3 ) 2 ∙6H 2 O) and 0.8188 g of 2-methylimidazole were separately dissolved in 50 mL of anhydrous methanol, and stirred to obtain a transparent solution; then the methanol solution of zinc nitrate and the methanol solution of 2-methylimidazole were mixed, and stirred evenly for 1 h. Stand still for 24 h, then centrifuge and wash with methanol for 3 times, place in an evaporating dish and dry naturally to obtain a Zif-8 product with a size of 45-53 nm;

[0035] 1.2 Dissolve 0.0118 g of DDAB and 0.0059 g of EDTA in a mixed solvent of 3.0 mL of ethanol and 1.0 mL of glycerol, stir to obtain a transparent solution, then add 0.0057 g of Zif-8 nanoparticles and stir to obtain a Zif-8 solution;

[0036] 1.3 0.1208 g of copper nitrate trihydrate (Cu(NO 3 ) 2 ∙3H 2 O), 0.2451 g of manganese acetate tetrahydrate (Mn(Ac) 2 ∙4H 2 O) and 0.7000 g of PVP were added to the mixed solvent of 1.0 mL of ethanol and 4.0 mL of DMF, and ...

Embodiment 2

[0040] 2.1 Add 0.7419 g of Zn(NO 3 ) 2 ∙6H 2 O and 0.7310 g of 2-methylimidazole were separately dissolved in 46 mL of anhydrous methanol, and stirred to obtain a transparent solution; then the methanol solution of zinc nitrate and the methanol solution of 2-methylimidazole were mixed, and stirred for 2 h after mixing evenly , standing for 24 h, then centrifuged and washed 3 times with anhydrous methanol, placed in an evaporating dish and dried naturally to obtain a Zif-8 product with a size of 36-42 nm;

[0041] 2.2 Dissolve 0.0019 g of DDAB and 0.0014 g of EDTA in a mixed solvent of 3.0 mL of ethanol and 1.0 mL of glycerol, stir to obtain a transparent solution, then add 0.0011 g of Zif-8 nanoparticles and stir to obtain a Zif-8 solution;

[0042] 2.3 Add 0.0793 g of Cu(NO 3 ) 2 ∙3H 2 O, 0.1609 g of Mn(Ac) 2 ∙4H 2 The PVP of 0 and 0.2922 g joins in the mixed solvent of the ethanol of 1.0 mL and the DMF of 4.0 mL, stirs to obtain a transparent solution; Then all the Zi...

Embodiment 3

[0045] 3.1 Add 0.7419 g of Zn(NO 3 )2 ∙6H 2 O and 0.8908 g of 2-methylimidazole were separately dissolved in 47 mL of anhydrous methanol, and stirred to obtain a transparent solution; then the methanol solution of zinc nitrate and the methanol solution of 2-methylimidazole were mixed, and stirred for 2 h after mixing evenly , standing for 24 h, then centrifuged and washed 3 times with anhydrous methanol, placed in an evaporating dish and dried naturally to obtain a Zif-8 product with a size of 33-38 nm;

[0046] 3.2 Dissolve 0.0323 g of DDAB and 0.0106 g of EDTA in a mixed solvent of 3.0 mL of ethanol and 1.0 mL of glycerol, stir to obtain a transparent solution, then add 0.0133 g of Zif-8 nanoparticles and stir to obtain a Zif-8 solution;

[0047] 3.3 Add 0.1769 g of Cu(NO 3 ) 2 ∙3H 2 O, 0.3590 g of Mn(Ac) 2 ∙4H 2 The PVP of 0 and 1.1106 g joins in the mixed solvent of the ethanol of 1.0 mL and the DMF of 4.0 mL, stirs to obtain a transparent solution; Then the Zif-8 so...

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Abstract

The invention discloses a preparation method of bead-chain-shaped CuMn2o4 / ZnO composition fiber and an obtained product. The preparation method comprises the steps: dissolving DDAB and EDTA into a mixed solvent of ethyl alcohol and glycerol, then adding Zif-8 nanoparticles and evenly stirring to obtain a Zif-8 solution; slowly dropwise adding the Zif-8 solution into a solution prepared from cupricsalt, manganese salt and PVP to obtain a precursor spinning solution and obtaining a final product by electrostatic spinning and thermal treatment. According to the preparation method disclosed by the invention, the surface modified Zif-8 nanoparticles are introduced into the field of preparing CuMn2O4 / ZnO composition fiber by an electrostatic spinning technology for the first time; by means of designing and preparing a precursor spinning solution system, a micro morphology of the composition fiber is effectively regulated. The preparation method disclosed by the invention has the advantagesof easiness in reaction process control, convenience in operation process and good repeatability; the obtained product has the advantages of special micro structure, high yield, excellent physicochemical property and potential application value in the fields of photocatalysis, gas sensing and the like.

Description

technical field [0001] The present invention relates to a CuMn 2 o 4 / ZnO composite fiber preparation method, in particular to a size-adjustable bead-like CuMn 2 o 4 / ZnO composite fiber preparation method and the resulting product. Background technique [0002] In recent years, with spinel structure (AB 2 o 4 )'s multi-component compounds are widely used in catalysis, energy storage, lithium batteries, sensitive components, etc., and have become a class of functional materials that people focus on research. AB 2 o 4 The choice of metal cations at the A and B positions in the type compound is varied, and the difference in crystal structure usually causes significant changes in physical and chemical properties under the excitation of light, electricity, magnetism, heat, etc., showing a good application prospect. For example, spinel-type compounds have the advantages of narrow band gap, response to visible light, high recycling rate, and good photoelectric conversion e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/10D01F1/10
Inventor 李绘陈迎马谦张进涛韩智峰谭亦朗车全德王俊鹏王刚杨萍
Owner UNIV OF JINAN
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