Nano-anatase titanium oxide preparation

Abstract

A process for preparing nano-class anatase-type titanium oxide includes such steps as preparing the suspension of naon carrier with water, proportionally adding solution of TiCl4, adding alkali solution to regulate pH value to 6-9, generating solid phase, washing and calcining. Its advantages are high specific surface area, and high surface activity.

Description

technical field [0001] The invention relates to a preparation method of nano anatase titanium oxide. Background technique [0002] As an important inorganic functional material, titanium oxide has been applied in many fields such as modern industry, agriculture, national defense and science and technology. Titanium oxide has three crystal forms of brookite, rutile and anatase, and the two crystal forms of rutile and anatase are more widely used. Since the discovery in 1972 that the surface of titanium oxide can continuously decompose water through photocatalysis, the application of photocatalytic materials represented by it in purifying water resources, purifying air, sterilizing, and deodorizing has attracted widespread attention. The recently discovered superhydrophilicity of titanium oxide surface after ultraviolet irradiation has opened up new fields for its application research (such as surface self-cleaning of materials, etc.). According to a large ...

AI Technical Summary

Problems solved by technology

These preparation methods have their own characteristics, but in addition to defects such as high cost and complex process, they also have the disadvantage of obtaining mixed crystal or poor crystallinity nano-anatase titanium oxide.

The photocatalytic experiments show that the mixed crystal nano anatase titanium oxide basically has no photocatalytic activity, and the photocatalytic activity of the nano anatase titanium oxide with poor crystallinity is also greatly reduced.

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