Photo-oxidation of NH3 over various TiO2

Photo-oxidation of NH3 over various TiO2
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DOI：
10.1016/j.cattod.2006.07.053
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发表时间：
2007-02
期刊：
Catalysis Today
影响因子：
5.3
通讯作者：
S. Yamazoe;Taro Okumura;Tsunehiro Tanaka
S. Yamazoe;Taro Okumura;Tsunehiro Tanaka
中科院分区：
化学2区
文献类型：
--
作者：
S. Yamazoe;Taro Okumura;Tsunehiro Tanaka

文献摘要

相似文献

NH3的光氧化反应(PHOTO-SCO)是在室温下在TiO2光催化剂上进行的。对不同类型的TiO2光催化反应的结果表明，JRC-TiO8的活性最高，当空速为25000h−1时，NH3转化率为100%。我们发现，光-SCO活性与二氧化钛对NH3的化学吸附量和氧阴离子自由基物种的数量有关。特别是，在光致发光材料中，O_3-−自由基的产生量更为活跃。
Photo-oxidation of NH3(photo-SCO) takes place at room temperature over TiO2photocatalyst. From the results of photo-SCO reaction over various TiO2, we found that JRC-TIO-8 exhibited the best activity and 100% NH3conversion was achieved at GHSV=25,000h−1. ESR study revealed that the photo-SCO proceeds by the reaction between NH2radical and oxygen anion radical species. We found that the photo-SCO activity correlated to the amount of the NH3chemisorption amount of TiO2and the oxygen anion radical species. In particular, the produced amount of O3−radical is more active in the photo-SCO.