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首页> 外文会议>Asia-Pacific Congress on Catalysis:Abstracts vol.3; 20031012-15; Dalian(CN) >A Study on Photocatalytic Degradation of Organic Compunds over Transition-metal-substituted Titania-loaded MCM-41 Catalysts in Visible Light
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A Study on Photocatalytic Degradation of Organic Compunds over Transition-metal-substituted Titania-loaded MCM-41 Catalysts in Visible Light

机译：过渡金属取代的二氧化钛负载的MCM-41催化剂在可见光下光催化降解有机化合物的研究

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摘要

Photocatalytic degradation of pollutant over irradiated semiconductors is a promising technique of pollution abatement. Due to its high stability, non-toxicity and relatively low price, TiO_2 has been employed as the photocatalyst in vast majority of current studies. However, it requires UV light to be excited and become capable of photo-reaction. UV radiation requires additional sources of energy, and it is also harmful to living species. Therefore, the development of new semiconductor photocatalysts that have high activity under visible light has received great attention. In this study, several transition-metal-substituted titania-loaded MCM-41 specimens were synthesized and the photocatalytic activities of these catalysts for degradation of organic compounds in visible light were examined.
机译：污染物在辐照半导体上的光催化降解是一种有希望的污染消除技术。由于其高稳定性，无毒性和相对较低的价格，TiO_2已被用作当前大多数研究中的光催化剂。但是，它需要激发紫外线并使其具有光反应能力。紫外线辐射需要更多的能源，并且对生物也有害。因此，在可见光下具有高活性的新型半导体光催化剂的开发受到极大关注。在这项研究中，合成了几个过渡金属取代的二氧化钛负载的MCM-41标本，并研究了这些催化剂在可见光中降解有机化合物的光催化活性。

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