Investigation On Mesoporous Anatase TiO₂ Nanoparticles Prepared By Chemical Precipitation Process

In pace of development of science technology , people has discovered the material quality has great changes and manifested some specific properties when the material size reduces to nanometer(<0.1μm ).This discovery prodictes a wide-applied prospect. Since the MCM-41 molecular sieve has been prepared by the scientists of Mobil Oil successfully in 1992,ordered mesoporous materials are appealing more researcher's attention due to their properties and numerous applications in many fields.Among them mesoporous titania is a very interesting material,in view of its usefulness in various novel devices such as photocatalysts,adsorbents,solar cells , chemical sensors. The synthesis of mesoporous titania has tremendous important on the application research.At present ,several preparation methods are utilized yet.These products have a very high surface area,ordered pore structure and extremely narrow pore size distribution,the pore diameter can be adjusted and so on,but all of methods have the same defect: the sol-gel process. It is very difficult to come true industrialization because of the long -time synthsis process,the high cost of raw material,the complicated...