Preparation method of super-hydrophobic powder based on flower-shaped iron-containing manganese dioxide and capable of being simultaneously used for emulsion separation and dye adsorption

A manganese dioxide and emulsion separation technology, which is applied in chemical instruments and methods, iron compounds, alkali metal oxides/hydroxides, etc., can solve the problems of complicated preparation steps, high production costs, and poor practicability of superhydrophobic materials. Achieve the effect of low cost, easy to obtain raw materials and simple process

Pending Publication Date: 2017-09-29
HUBEI UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a simple and convenient method for industrial production of bionic flower-shaped superhydrophobic iron-containing manganese dioxide particles, which solves the problems of complicated preparation steps of superhydrophobic materials, high production cost and poor practicability

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  • Preparation method of super-hydrophobic powder based on flower-shaped iron-containing manganese dioxide and capable of being simultaneously used for emulsion separation and dye adsorption
  • Preparation method of super-hydrophobic powder based on flower-shaped iron-containing manganese dioxide and capable of being simultaneously used for emulsion separation and dye adsorption
  • Preparation method of super-hydrophobic powder based on flower-shaped iron-containing manganese dioxide and capable of being simultaneously used for emulsion separation and dye adsorption

Examples

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Embodiment 1

[0026] (1) Preparation of flower-shaped iron-containing manganese dioxide: Dissolve 3.56 g of manganese chloride and 4.56 g of ammonium persulfate in 160 ml of deionized water, and form a transparent solution under magnetic stirring. After that, dissolve 1.11 g of iron sulfite into In 40ml of deionized water, add ferric sulfite solution to solution one, transfer the mixed solution to an airtight container and place it at 80°C for 6h reaction, cool down to room temperature after the reaction, filter with ethanol and deionized water, respectively After washing three times, and then drying in a vacuum environment at 40° C. to obtain brown-black powder, the preparation of flower-like iron-containing manganese dioxide is completed.

[0027] (2) Modification of low surface energy: The prepared powder was added to 50 mL of a solution mixed with 0.1 M stearic acid and ethanol, stirred magnetically for 12 h at room temperature, filtered and dried in vacuo to obtain a superhydrophobic po...

Embodiment 2

[0032] (1) Preparation of flower-shaped iron-containing manganese dioxide: 1.78g of manganese chloride and 2.28g of ammonium persulfate were dissolved in 80mL of deionized water, and a transparent solution was formed under magnetic stirring. After that, 0.56g of iron sulfite was dissolved in In 40 mL of deionized water, add the ferric sulfite solution to solution one, transfer the mixed solution to a closed container and place it at 80 °C for 6 hours of reaction. After washing three times, and then drying in a vacuum environment at 40° C. to obtain brown-black powder, the preparation of flower-like iron-containing manganese dioxide is completed.

[0033] (2) Modification of low surface energy: The prepared powder was added to 50 mL of a solution mixed with 0.1 M stearic acid and ethanol, stirred magnetically for 12 h at room temperature, filtered and dried in vacuo to obtain a superhydrophobic powder.

[0034] (3) Separation of emulsion: 0.05g of superhydrophobic powder was ad...

Embodiment 3

[0038] (1) Preparation of flower-shaped iron-containing manganese dioxide: Dissolve 0.89 g of manganese chloride and 1.14 g of ammonium persulfate in 40 ml of deionized water to form a transparent solution one under magnetic stirring, and then dissolve 0.28 g of iron sulfite into In 40ml of deionized water, add ferric sulfite solution to solution one, transfer the mixed solution to an airtight container and place it at 80°C for 6h reaction, cool down to room temperature after the reaction, filter with ethanol and deionized water, respectively After washing three times, and then drying in a vacuum environment at 40° C. to obtain brown-black powder, the preparation of flower-like iron-containing manganese dioxide is completed.

[0039] (2) Modification of low surface energy: The prepared powder was added to 50 mL of a solution mixed with 0.1 M stearic acid and ethanol, stirred magnetically for 12 h at room temperature, filtered and dried in vacuo to obtain a superhydrophobic powd...

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Abstract

The invention belongs to the field of preparation of super-hydrophobic materials and in particular relates to a preparation method of super-hydrophobic powder based on flower-shaped iron-containing manganese dioxide and capable of being simultaneously used for emulsion separation and dye adsorption. The preparation method comprises the following steps: preparing the flower-shaped iron-containing manganese dioxide, carrying out low surface energy modification and treating emulsion and dye by utilizing super-hydrophobic powder and the like. The super-hydrophobic powder provided by the invention has good super-hydrophobic / super-oleophilic performance; a contact angle between the super-hydrophobic powder and water is greater than 150 degrees, a rolling angle is less than 10 degrees and a contact between the super-hydrophobic powder and oil is about 0 degree; the super-hydrophobic powder can be used for separation of oil-in-water emulsion and adsorption of toxic water-soluble dye. The preparation method of the super-hydrophobic powder, provided by the invention, has the advantages of simple preparation process, easiness of obtaining raw materials, no toxin and environment friendliness, low cost and strong stability and is suitable for large-area preparation and application; the super-hydrophobic powder is suitable for treating working oil-containing wastewater and a toxic dye polluted water body and is also applicable to the fields including transportation of an industrial pipeline, preparation of an oil-water separation metal net and the like.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic powder preparation, and particularly relates to a method for preparing simple and low-cost fluorine-free superhydrophobic powder suitable for emulsion separation and dye adsorption. Background technique [0002] Superhydrophobic phenomena exist widely in nature, such as the surface of lotus leaves, butterfly wings, and water strider legs. The surface of the superhydrophobic material has a contact angle to water greater than 150° and a rolling angle less than 10°. Superhydrophobic materials have many unique and excellent surface properties: hydrophobicity, self-cleaning, anti-corrosion, anti-icing, anti-fog and other characteristics, which make them have great application prospects in many fields. [0003] The superhydrophobic particles with biomimetic multi-layer micro-nano structure have good superhydrophobicity and good lipophilicity in oil-in-water emulsions, so as to adsorb oil dropl...

Claims

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Application Information

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IPC IPC(8): C01G49/00B01J20/06B01J20/28B01J20/30
CPCB01J20/06B01J20/28011B01J20/28042C01G49/0072C01P2004/03C01P2004/30C01P2004/61
Inventor 郭志光郭飞
Owner HUBEI UNIV
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