Temperature response type europium ion imprinting composite membrane preparation method and application
A temperature-responsive, europium ion technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve problems such as separation difficulties and rare reports of europium ions, and achieve good antibacterial performance, Excellent separation effect and high selective adsorption capacity
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[0047] Example 1
[0048] (1) Surface modification of regenerated cellulose membrane
[0049] First, place 0.1211g Tris and 0.2g DA in 100mL deionized water, mix thoroughly under ultrasonic conditions, adjust the pH to 8.5 to obtain a mixed solution, immerse 3 pieces of RCMs in the mixed solution, and react for 0 hours under room temperature shaking to obtain the modified For supporting membrane dRCMs, take out the modified supporting membrane, soak and wash it with deionized water three times for 10 minutes each time, and dry the cleaned modified supporting membrane at room temperature.
[0050] (2) Preparation of non-self-supporting graphene oxide composite film
[0051] First, add 0.5g of silica nanospheres with a diameter of ~300nm to a mixed solution of 100mL of ethanol and water (ethanol:water=4:1), add 3mL of KH-570 after 5 minutes of nitrogen flow, and seal with degreasing tape. React at 80°C for 16 hours. After centrifugation, the product (kSiO2) is washed with alcohol and w...
Example Embodiment
[0065] Example 2
[0066] (1) Surface modification of regenerated cellulose membrane
[0067] First, place 0.1211g Tris and 0.2g DA in 100mL deionized water, mix thoroughly under ultrasonic conditions and adjust the pH to 8.5 to obtain a mixed solution. Immerse 3 pieces of RCMs in the mixed solution and react for 3 hours under room temperature shaking to obtain the modified solution. For supporting membrane dRCMs, take out the modified supporting membrane, soak and wash it with deionized water three times for 10 minutes each time, and dry the cleaned modified supporting membrane at room temperature.
[0068] (2) Preparation of non-self-supporting graphene oxide composite film
[0069] First, add 0.5g of silica nanospheres with a diameter of ~300nm to a mixed solution of 100mL of ethanol and water (ethanol:water=4:1), add 3mL of KH-570 after 5 minutes of nitrogen flow, and seal with degreasing tape. React at 80°C for 16 hours. After centrifugation, the product (kSiO2) is washed with a...
Example Embodiment
[0083] Example 3
[0084] (1) Surface modification of regenerated cellulose membrane
[0085] First, put 0.1211g Tris and 0.2g DA in 100mL deionized water, mix thoroughly under ultrasonic conditions, adjust the pH to 8.5 to obtain a mixed solution, immerse 3 pieces of RCMs in the mixed solution, and react for 6 hours under room temperature shaking to obtain the modified For supporting membrane dRCMs, take out the modified supporting membrane, soak and wash it with deionized water three times for 10 minutes each time, and dry the cleaned modified supporting membrane at room temperature.
[0086] (2) Preparation of non-self-supporting graphene oxide composite film
[0087] First, add 0.5g of silica nanospheres with a diameter of ~300nm to a mixed solution of 100mL of ethanol and water (ethanol:water=4:1), add 3mL of KH-570 after 5 minutes of nitrogen flow, and seal with degreasing tape. React at 80°C for 16 hours. After centrifugation, the product (kSiO2) is washed with alcohol and wat...
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