Preparation method of MXene composite membrane and the MXene composite membrane
A composite membrane and polymer membrane technology, applied in the field of membrane materials, can solve problems such as small layer spacing, limited permeation flux, and long liquid permeation channels, so as to increase the layer spacing, expand the aperture of water passage holes, and achieve good water delivery channel effect
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[0040]One aspect of the invention provides a MXENE composite film preparation method, referencefigure 1 As shown, the preparation method comprises the steps of:
[0041]S1: The MXENE powder and the HNTS powder were added to the beaker, respectively, and the ultrasonic dispersion was performed at a temperature of 20-30 ° C, and the first solution and the second solution were obtained.
[0042]S2: The first solution is mixed with the second solution and performs ultrasonic dispersion at a temperature of 20-30 ° C to obtain a mixed liquid;
[0043]S3: PDA + Tris-HCl mixing reagent of pH 8-9 is added to the mixture to perform ultrasonic dispersion. After the ultrasonic dispersion is completed, the mixture is magnetically stirred and uniformly obtains a target solution;
[0044]S4: The target solution was filtered to the organic polymer film by vacuum filtration to obtain a MXENE composite film.
[0045]It is to be explained that MXENE is a new type of two-dimensional transition metal carbide or carbon...
specific Embodiment
[0066]The embodiments of the present invention will be described in detail below in connection with Examples M1-M7, but those skilled in the art will appreciate that the following examples are intended to illustrate the invention and should not be construed as limiting the scope of the invention. In the embodiment, the specific condition is not indicated, and according to the conventional conditions or the manufacturer's recommendations. The reagents or instruments used are not indicated by the manufacturer, all of which can be obtained through the market.
[0067]The MXENE composite film obtained by Embodiment M1-M7 is prepared according to the total weight of the components according to the total weight of the components.
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[0069]
[0070]Table 1
[0071]According to the above experimental results, the most suitable formulation ratio is M6 (i.e., the separation layer is composed of 2 mg mXene + 2 mgHNTS + 200 mgpda), and the pure MXene film is only 401.7 ± 50 l · m under the pressure dr...
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