Method for producing nano-anatase mine-titanium oxide water sol

Abstract

A process for preparing the hydrosol of nano-class anatase-type TiO2 features that reaction between Ti-contained organic substance, distilled water or deionized water, chelating agent and hydrodecomposing inhibitor at 30-120 deg.C for 3-12 hr while stirring and controlling pH=1-5.

Description

technical field The invention belongs to the preparation method of nano titanium dioxide photocatalytic material, in particular to the preparation method of anatase type titanium dioxide aqueous sol responsive to visible light. Background technique Due to its excellent physical and chemical properties, nano-titanium dioxide has broad application prospects in solar energy conversion and utilization, environmental purification, etc., so it has become a research and development hotspot in domestic and foreign academic circles and enterprises in recent years. At present, the methods for preparing nano titanium dioxide mainly include hydrolysis method, chemical precipitation method, sol-gel method, microemulsion method and gas phase reaction method, etc. Among them, the sol-gel method is favored because of its simple operation, high purity and small particle size of the synthesized titanium dioxide. Favored, that is to use titanium salt as raw material ...

AI Technical Summary

Problems solved by technology

In summary, although the preparation methods of the nano-anatase titanium dioxide aqueous sol reported at present are various, from the perspective of industrial production and considering environmental factors, there are deficiencies in varying degrees.

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