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Preparation method and application of glucose coated oil-water separation membrane

A technology of oil-water separation membrane and glucose aqueous solution, which is applied in the fields of functional materials and chemical engineering, can solve the problems of high manufacturing cost, complicated production process, difficult production and application, etc., and achieve the effect of slow attenuation, simple operation and large water flow

Inactive Publication Date: 2018-06-19
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The superhydrophilic and underwater superoleophobic membranes currently prepared are difficult to be practically produced and applied due to high manufacturing costs, complex production processes, and serious environmental pollution.

Method used

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  • Preparation method and application of glucose coated oil-water separation membrane
  • Preparation method and application of glucose coated oil-water separation membrane
  • Preparation method and application of glucose coated oil-water separation membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Preparation of glucose solution

[0031] Gradually add 0.8g of glucose powder particles into 20mL of deionized water, stir well and leave it for 30min to obtain glucose aqueous solution,

[0032] (2) After adding 37wt% HCl solution to adjust the pH value of the glucose solution obtained in step (1) to 2, a piece of dry qualitative filter paper with a diameter of 70 mm and a pore size of 20-25 μm is put into it and soaked for 2 h,

[0033] (3) Take out the filter paper soaked in the glucose solution in step (2), and then put into 20mL of 50wt% glutaraldehyde aqueous solution and soak for 24h;

[0034] (4) Take out the filter paper soaked in the glutaraldehyde aqueous solution in step (3), wash it with ethanol and deionized water several times to remove the chemical substances remaining on the surface, and dry it in vacuum at 35°C for 24 hours to obtain the glucose-coated oil-water separation membrane.

[0035] The surface morphology and related dimensions of the oi...

Embodiment 2

[0040] (1) Preparation of glucose solution

[0041] Gradually add 14g of glucose powder particles into 20mL of deionized water and stir well, then place it until the solution temperature returns to room temperature to obtain a saturated aqueous solution of glucose,

[0042] (2) After adding 37wt% HCl solution to regulate the pH value of the glucose solution obtained in step (1) to be 2, a piece of dry qualitative filter paper with a diameter of 70 mm and a pore size of 2.5 μm is put into it and soaked for 2 h,

[0043] (3) Take out the filter paper soaked in the glucose solution in step (2), and then put into 20mL of 25wt% glutaraldehyde aqueous solution and soak for 24h;

[0044] (4) Take out the filter paper soaked in the glutaraldehyde aqueous solution in step (3), wash it with ethanol and deionized water several times to remove the chemical substances remaining on the surface, and dry it in vacuum at 35°C for 24 hours to obtain the glucose-coated oil-water separation memb...

Embodiment 3

[0050] (1) Preparation of glucose solution

[0051] Gradually add 2g of glucose powder particles into 20mL of deionized water and leave it for 30min after stirring fully to obtain glucose aqueous solution,

[0052] (2) After adding 37wt% HCl solution to adjust the pH value of the glucose solution obtained in step (1), a piece of dry 50 × 50mm 2 The 300-mesh cotton fiber raw fabric is soaked in it for 4 hours,

[0053] (3) Take out the cotton fiber raw fabric soaked in the glucose solution in the step (2), then put into 20mL of 25wt% glutaraldehyde aqueous solution and soak for 48h;

[0054] (4) Take out the raw cotton fiber fabric soaked in the glutaraldehyde aqueous solution in step (3), wash with ethanol and deionized water several times to remove the chemical substances remaining on the surface, and then vacuum-dry at 35°C for 24 hours to obtain the glucose-coated cloth oil-water separation membrane.

[0055] The surface morphology and related dimensions of the oil-water...

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Abstract

Belonging to the technical field of chemistry and chemical engineering and functional materials, the invention in particular relates to a preparation method and application of a glucose coated oil-water separation membrane. The preparation method includes: adding glucose into deionized water and fully stirring the substances to obtain a glucose aqueous solution; adjusting the pH value of the glucose solution, and then putting a cellulose net membrane into the solution for soaking; then taking the cellulose net membrane out and putting it in a glutaraldehyde aqueous solution for soaking; and then taking the cellulose net membrane out, and conducting full washing and drying, thus obtaining the glucose coated oil-water separation membrane. The prepared glucose coated oil-water separation membrane can be applied to oil-water separation or oil-water emulsion separation.

Description

technical field [0001] The invention belongs to the technical fields of chemical engineering and functional materials, and in particular relates to a preparation method and application of a glucose-coated oil-water separation membrane. Background technique [0002] Due to the occurrence of a large number of offshore oil spills and the discharge of a large amount of oily wastewater to the environment in the production process of the food, machinery, and petrochemical industries, oil-water separation is of great significance in production and life. [0003] In recent years, oil-water separation membrane materials based on the special wettability of the material surface have attracted much attention due to their excellent oil-water separation effect. Superhydrophilic and underwater superoleophobic films are superhydrophilic in air and superoleophobic in water. When it is used for oil-water separation, water penetrates downward under the action of gravity and capillary force, a...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/02B01D71/10C02F1/40C02F1/44C02F101/32C02F101/36
CPCB01D67/0006B01D69/02B01D71/10B01D2325/36B01D2325/38C02F1/40C02F1/44C02F2101/32C02F2101/322C02F2101/36
Inventor 罗钟琳段聪王标兵
Owner CHANGZHOU UNIV
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