低温下纳米Ti02制备研究进展

纳米TiO2作为一种光催化材料在多种领域内具有极为广泛的用途.然而传统的制备工艺一般需要高温烧结,制备这类材料需要耐高温的基底,这就限制了其使用范围.另外,高温烧结易使晶粒长大,限制了其光催化活性,因此低温下制备TiO2材料具有重要的意义.综述了在低温下纳米TiO2的制备方法,主要包括水热合成法、低温液相法、脉冲沉淀技术、微波水热晶化法和自组装方法.分别评述了这些制备方法的具体特点和有待解决的问题.

The Development of the Nanometer Ti02 Preparation at Low Temperature

Titanium dioxide thin film as a kind of solely catalytic material has extensive application in several fields. However, the traditional preparation technology needs the high temperature sintering normally, this kind of film needs high temperature resistant base, which has restricted its scope of application. Additionally, the high temperature sintering makes crystal grain grow up easily; it is active to have restricted smooth photocatalysis. This article represents the method of preparing nanometer titanium dioxide at low temperature, and individually corresponding features and problems are analyzed. Existing state of the study, especially the main tendency in future is also described.