Abstract
The nano Al2O3 has good application foreground in many fields as the properties of adsorption and catalytic activity. In order to disclose the mechanism and the characteristic of crystal structure of heterotypic nano alumina in a composite system, this paper utilizes leading metal embedded slicing micron-nano representation method at home and abroad, to analyze the microcrystal structure of heterotypic nano AlOOH products particularly, discloses the acting mechanism of isomorphous replacement of iron ions and intercalation of sulfate ions from the polar additive in the crystal growing process, and points out the surface restoration function of the nano AlOOH crystalline surfaces from the polar surfactant additive. The accuracy of the conclusion is validated by using X-diffraction and infrared spectrum.
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