High water permeability mycelium fiber titanium carbide composite material, composite film and preparation method thereof
A composite material, high water permeability technology, used in chemical instruments and methods, semi-permeable membrane separation, osmotic/dialysis water/sewage treatment, etc. and other problems, to achieve the effect of increasing the specific surface area, good removal effect, and enhanced water permeability
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Embodiment 1
[0048] Embodiment 1: a kind of highly water-permeable hyphae fiber titanium carbide composite material comprises MXene nanosheet, nanometer zero-valent iron and mycelium nanofiber as skeleton; Described MXene nanosheet and mycelium nanofiber load nanometer zerovalent iron, The nano-zero-valent iron is grafted between the layers of MXene nanosheets and the surface of mycelium nanofibers; the mycelium nanofibers wrap the MXene nanosheets loaded with nano-zero-valent iron; the mycelium nanofibers are intertwined Linked into a network intercalation structure. High water permeability mycelium fiber titanium carbide composite material and high water permeability mycelium fiber titanium carbide composite film (MXene / nZVI@FH) were prepared by the following method:
[0049] (1) Use an inoculation loop to inoculate an appropriate amount of fungal strains of Aspergillus niger (ATCC 16404) in 200mL medium (potato 200g / L, glucose 20g / L, potassium dihydrogen phosphate 2.0g / L, magnesium sulf...
Embodiment 2
[0052] Example 2: A highly water-permeable mycelium fiber titanium carbide composite membrane (MXene / nZVI@FH) was prepared by the following method:
[0053] (1) Inoculate the fungal strain of appropriate Aspergillus niger in 200mL culture medium (potato 200g / L, glucose 20g / L, potassium dihydrogen phosphate 2.0g / L, magnesium sulfate heptahydrate 1.0g / L, pH = 5.5, 30 degrees centigrade, 175rpm) to cultivate to obtain Aspergillus niger hyphae pellets, inactivate the mycelium by boiling, then break and wash several times to obtain the FH nanofiber aqueous suspension.
[0054] (2) Measure 40mL 9mol / L HCl with a graduated cylinder, accurately weigh 2.0g LiF, pour it into a beaker, and stir it with a magnetic stirrer for 30 minutes to obtain an etching solution; 3 AlC 2 Add it to the etching solution in portions, and stir continuously at 35°C for 24 hours to obtain an impure suspension; centrifuge the obtained suspension at 3500rpm for 10 minutes, wash it with deionized water severa...
experiment example
[0056] Experimental example: The highly water-permeable hyphae fiber titanium carbide composite membrane (MXene / nZVI@FH) prepared in Example 1 was characterized to detect its properties.
[0057] (1) Permeability: Use a graduated cylinder to measure 20mL of MXene (titanium carbide nanosheets), FH (mycelia nanofibers), MXene@FH (titanium carbide mycelium nanofibers), MXene / nZVI@FH (high water permeability mycelium fiber titanium carbide composite membrane), PTFE (membrane cushion) were added to the effective area of 11.56 (3.4 × 3.4) cm 2 In the vacuum filtration device, under the pressure difference of 1.0 bar, the permeability was tested by aqueous solution. The results are shown in Table 1. The test results show that the permeability of MXene / nZVI@FH at 10°C and 33.82kPa is 6.10×10 -15 m 2 , which is 301 times that of pure MXene film. The experimental results show that the mesopores and macropores of the mycelial fiber titanium carbide composite membrane increase nZVI an...
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