Method for preparing titanium dioxide three-dimensional ordered nano structure
A titanium dioxide and nanostructure technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., to achieve the effect of easy operation, uniform size distribution and stable crystal form
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Embodiment 1
[0017] 1) Dissolve butyl titanate in n-hexane, add hydrochloric acid, the molar ratio of n-hexane, butyl titanate and hydrochloric acid is 1:0.076:0.153, and stir to obtain a mixed solution;
[0018] 2) Solvothermally synthesize the mixed solution in a reaction kettle at a temperature of 180° C. for 4 hours to obtain a white titanium dioxide powder;
[0019] 3) washing the prepared powder with ethanol and drying to obtain a three-dimensional ordered structure of titanium dioxide.
[0020] The X-ray diffraction pattern of the prepared titanium dioxide three-dimensional ordered structure is as follows figure 1 As shown, its diffraction peaks are consistent with the standard spectrum of rutile phase titanium dioxide, indicating that the obtained product is pure rutile phase titanium dioxide.
[0021] figure 2 It is a scanning electron micrograph of the three-dimensional ordered structure of titanium dioxide. It can be seen from the figure that the size distribution of the pre...
Embodiment 2
[0024] 1) Dissolving isopropyl titanate in cyclohexane, adding hydrochloric acid, the molar ratio of cyclohexane, isopropyl titanate and hydrochloric acid is 1:0.067:0.11, and stirring to obtain a mixed solution;
[0025] 2) Solvothermally synthesize the mixed solution in a reaction kettle at a temperature of 210° C. for 2 hours to obtain a white titanium dioxide powder;
[0026] 3) The prepared powder is washed with ethanol and dried to obtain titanium dioxide nanorods with a single crystal structure arranged radially from the center to form a dandelion-like three-dimensional ordered structure of titanium dioxide.
Embodiment 3
[0028] 1) Dissolving titanium chloride in dichloromethane, adding hydrochloric acid, the molar ratio of dichloromethane, titanium chloride and hydrochloric acid is 1:0.11:0.19, and stirring to obtain a mixed solution;
[0029] 2) The mixed solution was solvothermally synthesized in a reaction kettle at a temperature of 150°C for 20 hours to obtain a white titanium dioxide powder;
[0030] 3) The prepared powder is washed with ethanol and dried to obtain titanium dioxide nanorods with a single crystal structure arranged radially from the center to form a dandelion-like three-dimensional ordered structure of titanium dioxide.
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