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Magnetic oil-water separation material and preparation method thereof and oil-water separation sponge

An oil-water separation and magnetic technology, applied in water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of complex preparation methods, time-consuming multi-steps, limited application range, etc., and achieve simple preparation process , low equipment requirements and wide application range

Inactive Publication Date: 2020-08-07
LANZHOU JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing oil-water separation materials usually have unsatisfactory properties, not only low oil absorption capacity, poor separation effect, but also cannot be recycled, and the magnetic nanoparticles on the surface of the material are easy to dissociate from the substrate material; in addition, the superhydrophobic surface usually It is prepared by a two-step method, which is complicated and time-consuming. In addition, the existing oil-water separation sponge has a single function and can only separate one type of oil, so its application range is limited.
These defects limit the scale of oil-water separation and are not suitable for oil spills that require emergency treatment.

Method used

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  • Magnetic oil-water separation material and preparation method thereof and oil-water separation sponge
  • Magnetic oil-water separation material and preparation method thereof and oil-water separation sponge
  • Magnetic oil-water separation material and preparation method thereof and oil-water separation sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Take 0.60g of lauric acid (La) and disperse it in 15mL of ethanol under ultrasonic treatment;

[0037] (2) Slowly add 1mL tetrabutyl titanate dropwise to the lauric acid ethanol solution in step (1) and stir for 20min;

[0038] (3) Add 0.06mL deionized water and 0.03mL 0.2M HCl to the mixed solution in step (2) and stir vigorously for 30min;

[0039] (4) Add 0.6g nanometer Fe 3 o 4 Add 10mL of ethanol to prepare a suspension and add it dropwise to the mixed solution in step (3) and stir for 20min to obtain the oil-water separation magnetic material Fe 3 o 4 / La-TiO 2 .

Embodiment 2

[0041] (1) Take 6g of lauric acid (La) and disperse it in 150mL of ethanol under ultrasonic treatment;

[0042] (2) Slowly add 10mL tetrabutyl titanate dropwise to the lauric acid ethanol solution in step (1) and stir for 25min;

[0043] (3) Add 0.6mL deionized water and 0.3mL 0.2M HCl to the mixed solution in step (2) and stir vigorously for 30min;

[0044] (4) 6g nano-Fe 3 o 4 Add 100mL of ethanol to prepare a suspension, add it dropwise to the mixed solution in step (3) and stir for 25min to obtain the oil-water separation magnetic material Fe 3 o4 / La-TiO 2 .

Embodiment 3

[0046] (1) Take 3kg of lauric acid (La) and disperse it in 75L of ethanol under ultrasonic treatment;

[0047] (2) Slowly add 5L tetrabutyl titanate dropwise to the lauric acid ethanol solution in step (1) and stir for 25 minutes;

[0048] (3) Add 0.3L deionized water and 0.15L 0.2M HCl to the mixed solution in step (2) and stir vigorously for 30min;

[0049] (4) 3kg nano-Fe 3 o 4 Add 50mL of ethanol to prepare a suspension and add it dropwise to the mixed solution in step (3) and stir for 30min to obtain the oil-water separation magnetic material Fe 3 o 4 / La-TiO 2 .

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Abstract

The invention discloses a magnetic oil-water separation material and a preparation method thereof and oil-water separation sponge, and relates to the technical field of oil-water separation materials;the preparation method of the oil-water separation material and the oil-water separation sponge comprises the steps: firstly, slowly dropwise adding tetrabutyl titanate into an ethanol solution of lauric acid and stirring; secondly, adding a proper amount of deionized water and 0.2 M HCl solution into the mixed solution obtained in the first step, and violently stirring; dropwise adding the Fe3O4ethanol suspension into the mixed solution obtained in the step S2, and stirring to obtain an oil-water separation magnetic material Fe3O4 / La-TiO2; and then soaking the treated polyurethane sponge inan oil-water separation magnetic material Fe3O4 / La-TiO2 to obtain the oil-water separation sponge. The prepared oil-water separation sponge is high in separation efficiency and large in flux, and canbe widely applied to separation of various oil-water mixtures.

Description

technical field [0001] The invention relates to the technical field of oil-water separation materials, in particular to a magnetic oil-water separation material, a preparation method thereof, and an oil-water separation sponge. Background technique [0002] The main source of oil pollution in water bodies is human activities. Since the beginning of the last century, oil has become one of the most important energy sources for human beings, and the production and consumption of oil have increased rapidly. Since 1993, my country has transformed from an oil exporter to a net oil importer. The quantity of oil imports has continued to rise, and the volume of oil transportation along the coast has increased significantly. 90% of the imported oil is transported by sea ships. The frequent occurrence in my country's waters has made the already very busy navigation environment more complicated, leading to increased risks of oil spill pollution from ships, especially heavy and extra-larg...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/28B01J20/30C02F1/28
CPCB01J20/06B01J20/02B01J20/28009B01J20/28045C02F1/281
Inventor 陶彩虹刘辉苏思丝谢佳文马钰
Owner LANZHOU JIAOTONG UNIV
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