Preparation method and application of diatomite in-situ growth titanium dioxide nanorods
A technology of in-situ growth and titanium dioxide, which is applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problems of limited adsorption capacity of micron adsorption materials, loss, waste, reutilization, and easy agglomeration , to achieve the effect of reusing, increasing the active adsorption sites and specific surface area, and expanding the adsorption capacity
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Embodiment 1
[0030] Preparation of titania nanorods grown in situ on diatomite:
[0031] (1) Drop 3ml of isopropyl titanate into 10ml of ethanol and stir magnetically for 30min;
[0032] (2) Measure 13.5g of concentrated hydrochloric acid and drop it into the solution, and weigh 0.5g of sodium dodecylbenzenesulfonate, 0.6g of ammonium oxalate, and 2g of diatomaceous earth into the solution, stir magnetically until uniform, and then continue to add 15ml deionized water, stir well;
[0033] (3) Transfer the above mixed solution into a 50ml reaction kettle lined with polytetrafluoroethylene, seal it tightly, and put it in a vacuum drying oven at 150°C for 8 hours;
[0034] (4) Centrifuge the product obtained in step (3) for solid-liquid separation, and centrifuge and wash the obtained solid product three times with absolute ethanol and deionized water respectively, then put it in an oven and dry it at 60°C for 12 hours to obtain the target product silicon In situ growth of titania nanorods ...
Embodiment 2
[0038] Preparation of titania nanorods grown in situ on diatomite:
[0039] (1) Weigh 1g of titanium nitride and add it to 10ml of ethanol, ultrasonic for 30min until uniform dispersion;
[0040] (2) Measure 15g of concentrated hydrochloric acid and drop it into the solution, and weigh 0.3g of sodium dodecylbenzenesulfonate, 0.5g of ammonium oxalate, and 2g of diatomaceous earth into the solution respectively, stir magnetically until uniform, and then continue to add 15ml Deionized water, stir well;
[0041] (3) Transfer the above mixed solution into a 50ml reaction kettle lined with polytetrafluoroethylene, seal it tightly, and put it in a vacuum drying oven at 120°C for 10h;
[0042] (4) Centrifuge the product obtained in step (3) for solid-liquid separation, and centrifuge and wash the obtained solid product three times with absolute ethanol and deionized water respectively, then put it in an oven and dry it at 60°C for 12 hours to obtain the target product silicon In sit...
Embodiment 3
[0046] Preparation of titania nanorods grown in situ on diatomite:
[0047] (1) Drop 3ml of isopropyl titanate into 10ml of ethanol and stir magnetically for 30min;
[0048] (2) Measure 15g of concentrated hydrochloric acid and drop it into the solution, and weigh 0.5g of cetyltrimethylammonium bromide, 0.5g of ammonium oxalate, and 2g of diatomaceous earth and add them into the solution respectively, stir magnetically until uniform, and then continue Add 15ml deionized water and stir well;
[0049] (3) Transfer the above mixed solution into a 50ml reaction kettle lined with polytetrafluoroethylene, seal it tightly, and put it in a vacuum drying oven at 150°C for 8 hours;
[0050] (4) Centrifuge the product obtained in step (3) for solid-liquid separation, and centrifuge and wash the obtained solid product three times with absolute ethanol and deionized water respectively, then put it in an oven and dry it at 60°C for 12 hours to obtain the target product silicon In situ gro...
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