A kind of iron-based fluoride nanomaterial with hierarchical structure and its preparation method and application
A technology of nanomaterials and hierarchical structures, applied in nanotechnology, structural parts, nanotechnology, etc. for materials and surface science, can solve the problem of uneven nanostructure morphology, and achieve environmentally friendly and controllable morphology. control, good application prospects
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Embodiment 1
[0029] At room temperature, dissolve 1 g of ferric nitrate nonahydrate in 30 mL of ethanol, stir for 10 minutes, then add 1 mL of 1-butyl-4-methylimidazolium tetrafluoroborate (the molar ratio of iron ions to fluorine ions is 1:2) , stirred at room temperature for 20 minutes;
[0030] Transfer the above mixed solution to a 40mL hydrothermal container, and conduct a hydrothermal reaction at 90°C for 36 hours;
[0031] Centrifuge, collect the precipitate, wash in sequence with alcohol and acetone, and dry in the air at 60°C to obtain the iron-based fluoride nanomaterial of the present invention.
[0032] figure 1 is the XRD pattern of the iron-based fluoride nanomaterial prepared in the present embodiment, by figure 1 It can be seen that the prepared sample is Fe 1.9 f 4.75 0.95H 2 O (the position of the standard diffraction peak is as figure 1 Shown by short and medium dotted lines) and FeF 3 ·H 2 O (the position of its standard diffraction peak is as figure 1 The comp...
Embodiment 2
[0035]At room temperature, dissolve 1 g of ferric nitrate nonahydrate in 30 mL of ethanol, stir for 10 minutes, then add 1 mL of 1-butyl-4-methylimidazolium tetrafluoroborate (the molar ratio of iron ions to fluorine ions is 1:2) , stirred at room temperature for 20 minutes;
[0036] Transfer the above mixed solution to a 40mL hydrothermal container, and conduct a hydrothermal reaction at 70°C for 10 hours;
[0037] Centrifuge, collect the precipitate, wash in sequence with alcohol and acetone, and dry in the air at 60°C to obtain the iron-based fluoride nanomaterial of the present invention.
[0038] Figure 4 is the XRD pattern of the iron-based fluoride nanomaterial prepared in the present embodiment, by Figure 4 It can be seen that the prepared sample is Fe 1.9 f 4.75 0.95H 2 O phase (the position of its standard diffraction peak is as Figure 4 shown by the short solid line).
[0039] Figure 5 It is the SEM photo of the iron-based fluoride nanomaterial prepared ...
Embodiment 3
[0041] At room temperature, dissolve 2g of ferric nitrate nonahydrate in 30mL of isopropanol, and after stirring for 10 minutes, add 1mL of 1-butyl-4-methylimidazolium tetrafluoroborate (the molar ratio of iron ion to fluoride ion is 1: 1), stirring at room temperature for 60 minutes;
[0042] The above mixed solution was transferred to a 40mL solvothermal reactor, and the solvothermal reaction was carried out at 180°C for 10 hours;
[0043] Centrifuge, collect the precipitate, wash in sequence with alcohol and acetone, and dry in the air at 100°C to obtain the iron-based fluoride nanomaterial of the present invention.
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Abstract
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