Preparation method of titanium dioxide coated layered oxide two-dimensional core-shell material
A technology of titanium dioxide and coating layer, which is applied in the field of synthesis of inorganic nanomaterials, can solve the problems of difficult direct synthesis of two-dimensional nanosheets and limited performance of a single component, and achieve the effect of simple and efficient preparation method
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Embodiment 1
[0024] Example 1 Synthesis of TiO on the surface of ZnAl-LDH 2 Formation of ZnAl-LDO@TiO 2 Material
[0025] a: Take 0.1 ZnAl-LDH and disperse it into 50 mL of water, ethanol and acetonitrile mixed solution with a volume ratio of 0.05:1.00:0.10;
[0026] b: Add 2 mL of tetrabutyl titanate solution to the above suspension, and stir for 10 min;
[0027] c: Put it into the reactor and react at 80°C for 6 h. The obtained solid product is washed and dried;
[0028] d: Put the product obtained in step c into a muffle furnace at a heating rate of 5°C / min, and roast at 600°C for 2 h.
Embodiment 2
[0029] Example 2 Synthesis of TiO on the surface of CoAl-LDH 2 Formation of CoAl-LDO@TiO 2 Material
[0030] a: Disperse 0.2 CoAl-LDH into 100 mL of a mixed solution of water, ethanol and acetonitrile with a volume ratio of 0.10:1.00:0.05;
[0031] b: Add 5 mL of tetrabutyl titanate solution to the above suspension and stir for 20 min;
[0032] c: Put it into the reactor and react at 90°C for 10 h. The obtained solid product is washed and dried;
[0033] d: Put the product obtained in step c into a tube furnace at a heating rate of 2°C / min, and roast at 500°C for 3 h.
Embodiment 3
[0034] Example 3 Synthesis of TiO on the surface of MgAl-LDH 2 Formation of MgAl-LDO@TiO 2 Material
[0035] a: Disperse 0.5 MgAl-LDH into 500 mL of water, ethanol and acetonitrile in a mixed solution with a volume ratio of 0.15:1.00:0.15;
[0036] b: Add 25 mL of titanium tetrachloride solution to the above suspension, and stir for 30 min;
[0037] c: Put it into the reactor and react at 70°C for 15 h. The obtained solid product is washed and dried;
[0038] d: Put the product obtained in step c into a muffle furnace at a heating rate of 2°C / min, and roast at 400°C for 4 h.
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