Surface modified enteromorpha and preparation method as well as application thereof

A technology of surface modification and prolifera, applied in the field of materials and environmental engineering, can solve the problems of alarming economic cost and high price, achieve high promotion and application value, increase adsorption capacity, and enrich raw material resources.

Inactive Publication Date: 2016-05-04
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prices of these materials are relatively high, especially when used

Method used

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  • Surface modified enteromorpha and preparation method as well as application thereof
  • Surface modified enteromorpha and preparation method as well as application thereof
  • Surface modified enteromorpha and preparation method as well as application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] The preparation method 1 of the hydrophobic and lipophilic surface modified Enteromorpha:

[0030] 1) Washing treatment: Rinse the enteromorpha collected from the beach with tap water 3 times to remove floating impurities;

[0031] 2) Soaking desalination: Soak the washed Enteromorpha in tap water, where the weight ratio of Enteromorpha to tap water is 1:100. After soaking for 12h, remove the Enteromorpha and drain it; then place it in a dry box to maintain Dry for 9h at 50℃;

[0032] 3) The dried algae is placed in C with a concentration of 10% by weight 12 H 25 Cl 3 Soaked in Si-hexane solution for 12h, then take it out, put it in a drying box, maintain the temperature at 50℃ and dry for 5h, then the surface modified Enteromorpha is obtained.

Example Embodiment

[0033] Example 2

[0034] The preparation method 2 of the hydrophobic and lipophilic surface modified Enteromorpha:

[0035] 1) Washing treatment: Rinse the enteromorpha collected from the beach with tap water 4 times to remove floating impurities;

[0036] 2) Soaking and desalting: Soak the washed Enteromorpha in tap water, where the weight ratio of Enteromorpha to tap water is 1:150. After soaking for 14h, remove the Enteromorpha and drain it; then place it in a dry box to maintain Dry at 60℃ for 11h;

[0037] 3) The dried algae is placed in 10% (weight percentage concentration) of C 8 H 17 Cl 3 Soaked in Si-hexane solution for 18 hours, then take it out, put it in a drying box, maintain the temperature at 60 ℃ and dry for 7 hours to obtain the surface modified Enteromorpha.

Example Embodiment

[0038] Example 3

[0039] Characterization of the hydrophobic and lipophilic surface modified Enteromorpha:

[0040] The morphology of fresh Enteromorpha was observed with an optical microscope. Enteromorpha was dried and sprayed with platinum, and its surface characteristics were further observed by scanning electron microscope (SEM). The morphological characteristics of the untreated Enteromorpha and the above-mentioned examples after the organic silane treatment are as follows: figure 1 As shown, the surface morphology of Enteromorpha after treatment with organosilane is significantly changed compared with that of untreated Enteromorpha, and its surface is covered with an irregular rough film.

[0041] Energy dispersive X-ray spectroscopy (EDS) was used to measure the elemental energy spectra of Enteromorpha untreated and treated with organosilane. The acceleration voltage of the electron beam used was 20kV. The result is figure 2 As shown, there is no silicon on the surface of...

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Abstract

The invention belongs to the field of materials and environmental engineering, and relates to hydrophobic and oleophilic surface modified enteromorpha and a preparation method as well as application thereof. A coarse hydrophobic membrane layer is attached to the surface of enteromorpha; the coarse hydrophobic membrane layer attached to the surface is formed by soaking dry and desalted enteromorpha into organic phase liquid and then drying, and the surface modified enteromorpha is obtained by attaching the coarse hydrophobic membrane layer to the surface of the enteromorpha. The coarse hydrophobic membrane layer is prepared on the surface of the enteromorpha by adopting a soaking method in a hexane-organosilane solution, and an enteromorpha-organosilane fiber system with super lipophilicity and high hydrophobicity is formed and is used for collecting and treating an oil phase floating on the surface of seawater in an ocean oil spill accident.

Description

technical field [0001] The invention belongs to the field of materials and environmental engineering, and relates to a hydrophobic and lipophilic surface-modified enteromorpha and its preparation method and application. Background technique [0002] With the increasing eutrophication of water bodies, green tides have occurred all over the world, from North America, Europe, to Asia and Oceania in recent years, causing increasingly serious negative impacts on the nearshore ecological environment and tourism economy. In the summer of 2007, the green tide phenomenon formed by the massive proliferation of Ulva genus Enteromorpha was discovered for the first time in the Yellow Sea of ​​my country. The overall distribution area and density were small, and more than 7,000 tons of fresh algae were salvaged. In the summer of 2008, another large-scale green tide broke out in the Yellow Sea. In this green tide, the green algae covered an area of ​​about 540 square kilometers, and the se...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28
CPCB01J20/24B01J2220/4825C02F1/286C02F2103/007
Inventor 赵瑾姜鹏陈华新
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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