Preparation method for oil-water separation cotton
A technology of oil-water separation and cotton, which is applied in the field of new adsorption materials and material surface modification, can solve the problems of limited adsorption capacity, non-biodegradable, low separation efficiency, etc., and achieve the effect of high selectivity, good adsorption performance and small dosage
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specific Embodiment approach 1
[0017] Embodiment 1. The preparation method of cotton for oil-water separation is carried out according to the following steps: the mass concentration is 5% sodium hydroxide solution heated to 60 ° C, the cotton is immersed in it, magnetically stirred for 30 minutes, the cotton is taken out, passed through distilled water Rinse and dry in an oven at 50°C;
[0018] 2. Continuously drop 0.02mL of heptadecylfluorodecyltriethoxysilane into 15mL of absolute ethanol, then add 0.2g of nanometer zinc oxide powder, and ultrasonically disperse for 20 Minutes, completely immerse the cotton in it, react at room temperature for 120 minutes, seal it, and place it in a vacuum oven at 55°C for 60 minutes, take out the cotton, wash it with absolute ethanol and distilled water successively, and dry it in an oven at 60°C to mass Without change, the cotton for oil-water separation can be obtained.
[0019] Step 2: In a 500mL beaker, add 350mL of water and 3g of zinc nitrate, heat to 65 ° C, unti...
specific Embodiment approach 2
[0024] Specific embodiment two, the preparation method of cotton for oil-water separation is carried out according to the following steps: the mass concentration is that 7% sodium hydroxide solution is heated to 70 ℃, cotton is soaked wherein, magnetically stirred for 60 minutes, takes out cotton, passes through distilled water Rinse and dry in an oven at 50°C;
[0025] 2. Continuously drop 0.05mL heptadecylfluorodecyltriethoxysilane into 30mL acetone, then add 0.3g nanometer zinc oxide powder, and ultrasonically disperse for 30 minutes under the condition of ultrasonic frequency 40KHz and ultrasonic power 100W , completely immerse the cotton in it, react for 120 minutes under room temperature stirring conditions, seal the beaker, place it in a vacuum oven at 65°C for 60 minutes, take out the cotton, wash it with absolute ethanol and distilled water successively, and dry it in an oven at 80°C until If the quality remains the same, the cotton for oil-water separation can be obt...
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