Super-hydrophobic cigarette end, preparation method and uses thereof

A super-hydrophobic, hookah technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of high cost, harsh preparation material conditions, unsuitable for large-scale production and use, and achieves low cost and simple preparation method. , good effect

Inactive Publication Date: 2015-08-05
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of membrane material with microporous structure can successfully carry out the oil-water emulsion separation experiment, and has a high throughput, but due to the harsh conditions for the preparation of the material, the high cost, and the need for high-temperature treatment, it is not suitable for large-scale production and cannot be used. Separation of large-scale oil-water emulsions

Method used

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  • Super-hydrophobic cigarette end, preparation method and uses thereof
  • Super-hydrophobic cigarette end, preparation method and uses thereof
  • Super-hydrophobic cigarette end, preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation of superhydrophobic cigarette butts: immerse waste cigarette butts in deionized water for 30 minutes and take them out, immerse them in absolute ethanol for 30 minutes, take out the cigarette butts and dry them under normal pressure at 60°C for 2 hours to obtain clean cigarette butts; Cetyl trichlorosilane n-hexane solution 20mL, soak the clean cigarette butts in it for 2 minutes, take out and soak in n-hexane for 30 minutes, wash off the unreacted cetyl trichlorosilane remaining on the surface, take out the cigarette butts and put them in the oven Dry at 80°C for 1 hour, and cool naturally to obtain superhydrophobic cigarette butts.

[0027] Such as figure 1 , figure 2 The contact angles of the superhydrophobic cigarette butts described in this example to water and to cetane indicate that the superhydrophobic cigarette butts of the present invention have hydrophobic and lipophilic properties.

[0028] Such as image 3 The high-power electron microsco...

Embodiment 2

[0033] 1. Preparation of superhydrophobic cigarette butts: immerse discarded cigarette butts in deionized water for 30 minutes and take them out, immerse them in acetone for 30 minutes, and then take out the cigarette butts and dry them under normal pressure at 60°C for 2 hours to obtain clean cigarette butts; prepare 2% octadecyl tri 20mL of n-pentane solution of chlorosilane, soak the clean cigarette butt in it for 5min, take it out and soak it in n-pentane for 30min, wash off the unreacted octadecyl trichlorosilane remaining on the surface, take out the cigarette butt and put it in an oven at 70 Dry at ℃ for 1.5h, and cool naturally to obtain superhydrophobic cigarette butts.

[0034] Preparation of oil-water emulsion: Mix 10 mL of deionized water and 90 mL of hexadecane, add 0.5 g of Span 80, ultrasonically disperse for 2 hours, and disperse evenly to obtain an oil-water emulsion.

[0035] The superhydrophobic cigarette butt is clamped in the middle of the glass separator,...

Embodiment 3

[0037] 1. Preparation of superhydrophobic cigarette butts: immerse waste cigarette butts in deionized water for 30 minutes and take them out, immerse them in methanol for 30 minutes, take out the cigarette butts and dry them under normal pressure at 60°C for 2 hours to obtain clean cigarette butts; prepare 4% cetyl tris 20mL of n-pentane solution of chlorosilane, soak the clean cigarette butt in it for 5min, take it out and soak it in n-pentane for 30min, wash off the unreacted cetyltrichlorosilane remaining on the surface, take out the cigarette butt and put it in an oven at 90 Dry at ℃ for 40 minutes, and get superhydrophobic cigarette butts after natural cooling.

[0038] Preparation of oil-water emulsion: Mix 10 mL of deionized water and 90 mL of isooctane, add 0.5 g of Span 80, ultrasonically disperse for 2 hours, and disperse evenly to obtain an oil-water emulsion.

[0039] The superhydrophobic cigarette butt is clamped in the middle of the glass separator, and the obtai...

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Abstract

The present invention provides a super-hydrophobic cigarette end, and belongs to the field of functional materials. According to the present invention, waste cigarette end is treated and dried through a hydrophobic reagent to obtain the super-hydrophobic cigarette end, wherein the contact angle of the cigarette end on water achieves 156 DEG, the roll angle is less than 3 DEG, and the contact angle on oil is 0 DEG; the super-hydrophobic cigarette end can be applied for oil water emulsion separation and can be used for successfully separating a variety of oil water emulsions, wherein the separation efficiency is up to more than or equal to 98%, and the material can be recycled through simple cleaning after use; and the preparation process is simple, the operability is strong, the large-scale application is easily achieved in the oil overflow pollution field, and the effect of waste utilization can be achieved.

Description

technical field [0001] The invention belongs to the field of oil-water separation, in particular to a superhydrophobic cigarette butt and its preparation method and application. Background technique [0002] With the rapid development of the petroleum industry and the frequent occurrence of oil spills, oil-water mixtures, especially oil-water emulsions, are endangering the natural environment and human health. Therefore, the treatment method for this kind of pollution has become a research hotspot in recent years. Materials that can absorb oil and not absorb water have become the focus of attention. Among them, due to their special wettability, superhydrophobic and superoleophilic materials are being studied by many research teams for their unique hydrophobicity and good oil-water separation efficiency. In today's research field of superhydrophobic and superoleophilic materials, three-dimensional graphene foam, carbon nanotube foam, silicon aerogel, etc. have become resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022
Inventor 刘灿杨进李长生
Owner JIANGSU UNIV
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