Abstract：Here the history and basic principles of nano-TiO2 photocatalytic technology were briefly reviewed.The progress and challenges of applying nano-TiO2 photocatalytic technology in eliminating typical atmospheric pollutants were discussed in detail.The results show that nano-TiO2 photocatalytic technology can efficiently remove organic pollutants,NOx,sulfide,as well as CO2 with a general removal ratio of 80~99%.The applications of nano-TiO2 photocatalytic technology in atmospheric pollution control were also summarized.Nano-TiO2 photocatalytic technology has already found its applications in the field of air purification,vehicles exhaust purification,desulfurization of fossil fuels,and control of green-house effect.
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