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首页> 外文会议>CBCME 2011;International Conference on Biotechnology, Chemical and Materials Engineering >Preparation of Nitrogen-doped TiO_2 /slide glass photocatalyst and application for determination of chemical oxygen demand of pesticide phoxim in circulating photoreactor
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Preparation of Nitrogen-doped TiO_2 /slide glass photocatalyst and application for determination of chemical oxygen demand of pesticide phoxim in circulating photoreactor

机译：氮掺杂TiO_2 /滑动玻璃光催化剂的制备及其在循环光反应器中测定杀虫剂磷脂的化学需氧量

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摘要

Nitrogen-doped TiO_2 (N-TiO_2) film photo catalyst loaded on slide glass was prepared considering ammonia (NH_3) as nitrogen sources by sol-gel method. X-ray diffraction and SEM were employed to characterize the morphology, structure of the N-TiO_2 photocatalyst. The chemical oxygen demand (COD) with N-TiO_2 film photocatalyst experiment by degrading pesticide phoxim in aqueous solution under UV light by a self-design circulating photoreactor indicated that the degradation efficiency of N-TiO_2 film photo catalyst was depended on the layer numbers, flow velocity of solution and the category of light sources. The influence factors of preparation conditions were optimized. The optimum degradation efficiencies of COD decreased to 56.3 mg/L by using N-TiO_2 film photo catalyst in 60 min reaction period. In addition, the N-TiO_2 film photo catalyst has better photocatalytic activity under sunlight irradiation.
机译：通过溶胶 - 凝胶法考虑氨（NH_3）作为氮源，制备装载在滑动玻璃上的氮掺杂TiO_2（N-TiO_2）膜光催化剂。 使用X射线衍射和SEM来表征N-TiO_2光催化剂的形态学，结构。 通过自身设计循环光反应器通过紫外光降解水溶液中的水溶液在水溶液中的化学需氧量（COD）表明，N-TiO_2薄膜光催化剂的降解效率依赖于层数， 溶液的流速与光源类别。 优化了制备条件的影响因素。 在60分钟反应期间，使用N-TiO_2薄膜光催化剂，COD的最佳降解效率降低至56.3mg / L. 此外，N-TiO_2薄膜光催化剂在阳光照射下具有更好的光催化活性。

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