A kind of metal organic nano compound and its preparation and application
A nano-compound and metal-organic technology, applied in the fields of nanomaterials and biomedical materials, can solve the problems of slowness, structural collapse, unstable coordination bonds, etc., and achieve the effects of easy scale, mild conditions and simple preparation process.
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Embodiment 1
[0031] A method for preparing metal-organic nano-compounds as described above, comprising the following steps:
[0032] (a) will 4,4 ’ - Dithiodibenzoic acid and zirconium salt are dissolved in a mixed solution consisting of DMF, acetic acid and deionized water at a molar ratio of 1:1; the dosage ratio of DMF, acetic acid and deionized water is: 15ml: 0.38ml: 33μl;
[0033] (b) Place the reaction solution in step (a) at 40°C to react until the solution turns into a white turbid solution, and stop the reaction;
[0034] (c) After cooling, centrifuge and wash with DMF and deionized water respectively to obtain the product.
[0035] The morphology of the product obtained in step (c) is nanorods, the hydrodynamic particle size is 200-250nm, the surface is positively charged, the surface has a mesoporous structure, the pore diameter is 1.85nm, and the specific surface area is 441.67m 2 / g.
Embodiment 2
[0037] A method for preparing metal-organic nano-compounds as described above, comprising the following steps:
[0038] (a) will 4,4 ’ - Dithiodibenzoic acid and zirconium salt are dissolved in a mixed solution consisting of DMF, acetic acid and deionized water at a molar ratio of 1:1; the dosage ratio of DMF, acetic acid and deionized water is: 15ml: 0.19ml: 33μl;
[0039] (b) Place the reaction solution in step (a) at 20°C to react until the solution turns into a white turbid solution, and stop the reaction;
[0040] (c) After cooling, centrifuge and wash with DMF and deionized water respectively to obtain the product.
[0041] The morphology of the product obtained in step (c) is nanorods, the hydrodynamic particle size is 200-250nm, the surface is positively charged, the surface has a mesoporous structure, the pore diameter is 1.75nm, and the specific surface area is 400.32m 2 / g.
Embodiment 3
[0043] A method for preparing metal-organic nano-compounds as described above, comprising the following steps:
[0044] (a) will 4,4 ’ - Dithiodibenzoic acid and zirconium salt are dissolved in a mixed solution consisting of DMF, acetic acid and deionized water in a molar ratio of 1:1; the dosage ratio of DMF, acetic acid and deionized water is: 15ml: 0.76ml: 33μl;
[0045] (b) Place the reaction solution in step (a) at 120°C to react until the solution turns into a white turbid solution, and stop the reaction;
[0046] (c) After cooling, centrifuge and wash with DMF and deionized water respectively to obtain the product.
[0047] The shape of the product obtained in step (c) is nanosphere, the hydrodynamic particle size is 200~250nm, the surface is positively charged, the surface has a mesoporous structure, the pore diameter is 0.83nm, and the specific surface area is 340.24m 2 / g.
[0048] Product performance testing:
[0049] 1) Powder diffraction instrument Bruker D8 A...
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