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
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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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