Molecular imprinting technology（MIT）is a kind of new-emerging polymerizing technology with specific selectivity and affinity ability, An elucidation on the basic principles, and the broad applications of molecularly imprinted polymers (MIPs) in some fields are given in this paper. It also gives an overview of some recent development in the field and offers an insight into how the area is likely to evolve in the future.

Melt Phase-splitting[1] method was a new one of preparing supported nano-photocatalytic materials.The nano TiO2 prepared loaded to the porous glass carrier. In this study,the technology of preparing nano TiO2 by melt phase-splitting method was Optimization, also doing doping modifcation on them. Using nano TiO2 photocatalyst to do photocatalytic degradation test on formaldehyde.The result had shown that: the degradation efficiency of the catalyst containing ZnO was higher than that free of ZnO. The rate of degradation of formaldehyde of the catalyst free of ZnO could reached 58.7% in 8 hours, but that of the catalyst containing was only 53.3%. Using fluorescent lamps as the light source,the photocatalytic efficiency of the catalyst free of ZnO could reached 43.2%.

Because of the discharging of the titaniferous blast-furnace, large quantities of titanium resource have run off ,its utilization has been the focus of people'cencerning. This article introduced the present research state of the titaniferous blast-furnace'complex utilization,and it analysed the open question and the feasibility of titaniferous blast-furnace'applying at photocatalysis area.This article also prospected the titaniferous blast-furnace's research foreground.