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Research Progress in Degradation of Indoor Pollutants by Nanocatalysts |
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Abstract: The harm effects of environmental pollution, especially, indoor air pollutants on human health have been attracting more and more attention in recent years. One of important topics of environmental management is how to effectively eliminate indoor air pollutants. In these aspects, nanocatalysts show outstanding effects and promising applications. The basic principle of photocatalysis reaction of the nanomaterials is discussed and the research progress in nanocatalysts of metal nanoparticles, metal oxide nanoparticles, and composite nanoparticles of metal oxides developed for degradation of varied indoor air pollutants is reviewed in this paper. The advantages and disadvantages of these nanocatalysts are discussed. Noble metals show a very good effect in degradation of indoor air pollutants, but the high price hinders its wide application. The photocatalytic degradation process of indoor air pollutants of oxide nanomaterials requires the light, and the catalysts show a good effect after being supported by the precious metal. Catalytic degradation of indoor pollutants of the oxide and mixed oxides nanomaterials shows good catalytic performance and development prospects. The future developments and potential applications of nanocatalysts for degradation of indoor air pollutants are pointed out.
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Received: 18 March 2010
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