Method for preparing molybdenum trioxide material with orthorhombic phase single crystal nano belt structure
A technology of single crystal nanometer and molybdenum trioxide, which is applied in the field of inorganic non-metallic nanomaterials and nanometers, which can solve the problems of safety and difficult control of acidification operation, expensive preparation equipment, high reaction temperature, etc., and achieve easy control of process and simple preparation equipment , the effect of low reaction temperature
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[0030] Example 1
[0031] After grinding, dissolve ammonium heptamolybdate in deionized water to obtain a concentration of 20g / 100ml ammonium heptamolybdate solution for 2 days, then add the same volume of deionized water; acidify the above solution with nitric acid while stirring, The concentration of nitric acid is 3mol / L, the added amount is 1 time of the ammonium heptamolybdate solution, and the stirring is continued for 30 minutes to obtain a transparent molybdate sol; the ethanol solution of the template agent CTAB is added to the molybdate sol, the CTAB concentration is 2mol / L, Add 0.1 times the volume of sol, stir vigorously for 1h;
[0032] Move the molybdate sol containing template to a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally react at 120°C for 36 hours, and cool to room temperature to obtain a hydrothermal product; filter the obtained hydrothermal reaction product, first Use anhydrous ethanol lotion twice, then deionized water ...
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[0034] Example 2
[0035] After grinding, dissolve ammonium heptamolybdate in deionized water to obtain a concentration range of 50g / 100ml ammonium heptamolybdate solution for 8 days, then add the same volume of deionized water; acidify the above solution with nitric acid while stirring , The concentration of nitric acid is 7mol / L, the amount added is 3 times that of the ammonium heptamolybdate solution, and the stirring is continued for 90 minutes to obtain a transparent molybdic acid sol; add the ethanol solution of the template agent CTAB to the molybdate sol, the CTAB concentration is 5mol / L , The adding amount is 0.5 times the volume of the sol, and stirring vigorously for 5h;
[0036] Move the molybdate sol containing template to a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally react at 180°C for 12 hours, and cool to room temperature to obtain a hydrothermal product; filter the obtained hydrothermal reaction product, first Use absolute et...
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[0037] Example 3
[0038] After grinding, dissolve ammonium heptamolybdate in deionized water to obtain a concentration range of 40g / 100ml ammonium heptamolybdate solution for 6 days, then add the same volume of deionized water; acidify the above solution with nitric acid while stirring , The concentration of nitric acid is 5mol / L, the added amount is twice that of the ammonium heptamolybdate solution, and the stirring is continued for 60 minutes to obtain a transparent molybdate sol; the ethanol solution of the template agent CTAB is added to the molybdate sol, and the CTAB concentration is 4mol / L , The adding amount is 0.4 times the volume of the sol, and stirring vigorously for 4h;
[0039] Move the molybdate sol containing the template to a stainless steel reaction kettle lined with polytetrafluoroethylene, hydrothermally react at 150°C for 24 hours, and cool to room temperature to obtain a hydrothermal product; filter the obtained hydrothermal reaction product, first Use anhy...
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