Synthetic method for porous silicon dioxide hollow micro ball
A technology of porous silica and synthesis method, applied in the direction of silica, silica, etc., can solve the problems of poor product stability, cumbersome operation, easy collapse of empty walls, etc., achieve mild reaction conditions and improve production efficiency , product quality and the effect of yield guarantee
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Embodiment 1
[0021] In TEOS(mol):C 2 h 5 OH (mol): H 2 O (mol): Span-80 (g): kerosene (g) = 1: 3: 20: 15: 40, change and add HNO 3 moles of n(HNO 3 ) / n(TEOS) is 0.5, the product is a hollow sphere, as shown in Figure 1.
Embodiment 2
[0023] In TEOS(mol):H 2 O (mol): HNO 3 (mol): Span-80 (g): kerosene (g) = 1: 20: 0.5: 15: 40 conditions, the amount of TEOS is 6ml, change C 2 h 5 The amount of OH added, in n(C 2 h 5 When OH) / n(TEOS) is 2, the product is a hollow sphere, and the SEM photo of the product is shown in Figure 2.
Embodiment 3
[0025] In TEOS(mol): C 2 h 5 OH (mol): H 2 O (mol): HNO 3 (mol): kerosene (g)=1:3:20:0.5:40, the amount of TEOS was 6ml, and the amount of Span-80 was changed. When the Span-80 was 20g / mol TEOS, the product was a hollow sphere.
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