Preparation method of organic-inorganic hybrid super hydrophobic modified bacterial cellulose aerogel oil absorption material

A technology of bacterial cellulose and superhydrophobic modification, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of human interference and economic loss in aquatic ecosystems, and achieve good selective oil absorption performance, high oil absorption efficiency, The effect of thin diameter

Active Publication Date: 2014-09-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On May 5, 2010, the crude oil spill in the Gulf of Mexico in the United States attracted great attention from the international community. An oil drilling platform on the coast of Louisiana in the southern United States caught fire and exploded at around 10 pm local time on April 20, 2010, causing 7 serious injuries. , at least 11 people are missing, and the nearly 3-month oil spill not only caused huge economic losses, but also brought lasting and serious pressure to the environment, causing serious human disturbance to aquatic ecosystems
At present, there is no report on the use of bacterial cellulose aerogels as oil-absorbing materials at home and abroad.

Method used

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0028] Specific Embodiment 1: In this embodiment, bacterial cellulose microfibrils are dissolved to form bacterial cellulose hydrogel, and then freeze-dried to prepare bacterial cellulose aerogel, and then organic-inorganic hybridization is carried out on the surface of bacterial cellulose aerogel Superhydrophobic modification to prepare oil-absorbing materials that can be used as marine oil spills. The specific operation steps are as follows:

[0029] Step 1, the cultivation of bacterial cellulose

[0030] (1) Kombucha liquid subculture medium: the medium is composed of agar, the carbon source is glucose, the nitrogen source is yeast powder and tryptone; the ratio is glucose 5g, yeast powder 1g, agar 2g, CaCO 3 2g, 100ml deionized water, the above is the optimal ratio but can also be fine-tuned, adjust the pH of the medium to 6.8. Scrub the large-mouth glass bottle twice with alcohol, and then boil it in boiling water for two minutes to remove as much bacteria and clean...

specific Embodiment approach 2

[0041] Specific embodiment two: In this embodiment, the organic-inorganic hybrid modified bacterial cellulose airgel oil-absorbing material is prepared according to the following steps:

[0042] 1. Bacterial cellulose cultivation

[0043] (1) Kombucha liquid subculture medium: the medium is composed of agar, the carbon source is glucose, the nitrogen source is yeast powder and tryptone; the ratio is glucose 5g, yeast powder 1g, agar 2g, CaCO 3 2 g, 100 ml of deionized water, and adjust the pH of the medium to 7.0. Scrub the large-mouth glass bottle twice with alcohol, and then boil it in boiling water for two minutes to remove as much bacteria and cleaning agent alcohol as possible to prevent Acetobacter xylinum from being polluted.

[0044] (2) Kombucha was subcultured with bacterial liquid, and an appropriate amount of bacterial liquid was taken from the kombucha liquid (purchased from Yijun Shijia), and inoculated into 100mL fermentation medium with a 20% inoculat...

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Abstract

A preparation method of an organic-inorganic hybrid super hydrophobic modified bacterial cellulose aerogel oil absorption material relates to a preparation method of an oil absorption material. The invention aims to provide the preparation method of the organic-inorganic hybrid super hydrophobic modified bacterial cellulose aerogel oil absorption material. The bacterial cellulose aerogel is subjected to organic-inorganic hybrid super hydrophobic modification to obtain the super hydrophobic aerogel oil absorption material. The method comprises the steps as follows: 1, bacterial cellulose cultivation; 2, bacterial cellulose aerogel preparation; and 3, preparation of the organic-inorganic hybrid super hydrophobic modified bacterial cellulose aerogel. The oil absorption material prepared by the invention has good selective oil absorption performance, can be conveniently used for oil-water separation or absorption of the oil spill in the water, has no pollution to the water body, and is a novel oil absorption material with great application potential.

Description

technical field [0001] The invention relates to a preparation method of an oil-absorbing material, in particular to a preparation method of an organic-inorganic hybrid superhydrophobic modified bacterial cellulose airgel oil-absorbing material. Background technique [0002] In recent years, with the increasing development of offshore oil resources, oil spill accidents have been increasing. Similar oil spills happen every year in the world. With the acceleration of industrial society, my country's oil pollution is becoming more and more severe. On May 5, 2010, the crude oil spill in the Gulf of Mexico in the United States attracted great attention from the international community. An oil drilling platform on the coast of Louisiana in the southern United States caught fire and exploded at around 10 pm local time on April 20, 2010, causing 7 serious injuries. , At least 11 people are missing. The nearly three-month oil spill not only caused huge economic losses, but also broug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/42C08J9/36C08J9/28C08L1/02C09K3/32
Inventor 刘宇艳刘振国王永臻吴松全
Owner HARBIN INST OF TECH
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