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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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TiO2光催化降解胸腺嘧啶的动力学和机理
DOI: 10.1016/S1872-2067(15)60967-6, PP. 1818-1824
Keywords: 二氧化钛,光催化,胸腺嘧啶,光矿化,前沿电子密度
Abstract:
？考察了用于降解来自嘧啶家族的一种核酸—胸腺嘧啶(C5H6N2O2)的高级氧化过程.结果发现,在光催化剂TiO2作用下,胸腺嘧啶的光降解进行得很快,且在紫外光照射和水溶液中时更为明显.研究了胸腺嘧啶在TiO2催化剂上的吸附、降解动力学、以及pH值对光催化降解胸腺嘧啶性能的影响.另外,考察了胸腺嘧啶降解产物的矿化;比较和讨论了在光催化过程中胸腺嘧啶的消失和矿化速率.同时还研究了氮的矿化,确立了中间产物的识别方法.最后,采用电子密度计算提出了在紫外光照射下TiO2催化剂上胸腺嘧啶降解的可能化学途径.
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