Preparation method of titanium dioxide nanowire/two-dimensional layered titanium carbide composite material
A titanium dioxide, two-dimensional layered technology, applied in the field of nano-functional material preparation, can solve the problems of single morphology, poor hydrophilicity and small specific surface area.
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[0021] Example 1
[0022] 1) Refine the powder
[0023] Refinement of ternary layered Ti with a purity greater than 97wt% by high-energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixture and absolute ethanol is 10:1:1, the ball milling speed is 400r / min, the high-energy ball milling time is 4h, and then the obtained solid-liquid mixture is dried at 50 ℃ dry to obtain Ti with a particle size of 10±2μm 3 AlC 2 Ceramic powder; see figure 1 , figure 1 The XRD pattern in the middle indicates that the phase of the obtained powder is Ti 3 AlC 2 crystals with very little impurity content.
[0024] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation
[0025] Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 5gTi 3 AlC 2 The powder was immersed in 100mL mass concentration of 40wt% HF acid solution for 48h; magnetic stirring, for Ti 3 AlC 2 After the ceramic powder ...
Example Embodiment
[0028] Example 2
[0029] 1) Refine the powder
[0030] Refinement of ternary layered Ti with a purity greater than 97wt% by high-energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixture and absolute ethanol is 10:1:1, the ball milling speed is 400r / min, the high-energy ball milling time is 2h, and then the obtained solid-liquid mixture is dried at 50 °C dry to obtain Ti with a particle size of 56±5μm 3 AlC 2 ceramic powder;
[0031] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation
[0032] Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 2gTi 3 AlC 2 The powder was immersed in 50mL mass concentration 45wt% HF acid solution for 12h; magnetic stirring, for Ti 3 AlC 2 After the ceramic powder was etched, it was centrifugally washed with deionized water until the pH was 5-6, and the obtained solid sample was dried at room temperature to obtain a two-dimensio...
Example Embodiment
[0035] Example 3
[0036] 1) Refine the powder
[0037] Refinement of ternary layered Ti with a purity greater than 97wt% by high-energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixture and absolute ethanol is 10:1:1, the ball milling speed is 400r / min, the high-energy ball milling time is 2h, and then the obtained solid-liquid mixture is dried at 50 °C dry to obtain Ti with a particle size of 75 μm 3 AlC 2 ceramic powder;
[0038] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation
[0039] Ti obtained in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 2gTi 3 AlC 2 The powder was immersed in 40mL mass concentration 49wt% HF acid solution for 6h reaction; magnetic stirring, for Ti 3 AlC 2 After the ceramic powder was etched, it was centrifugally washed with deionized water until the pH was 5-6, and the obtained solid sample was dried at room temperature to obtain a two-d...
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