| 甲酸存在下硝酸根在二氧化钛表面光催化还原成氨 |
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| 引用本文： | 李越湘,彭绍琴,戴超.甲酸存在下硝酸根在二氧化钛表面光催化还原成氨[J].催化学报,1999,20(3):378-380. |
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| 作者姓名： | 李越湘 彭绍琴 戴超 |
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| 作者单位： | 1. 南昌大学化学系,南昌,330047
2. 科隆大学无机化学研究所,科隆 D-50939,德国 |
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| 摘 要： | 用甲酸作空穴清除剂，研究了ＴｉＯ２水悬浮体系中硝酸根光催化还原氨的反应。与草酸作空穴清除剂相比，甲酸加速硝酸根的还原更显著。研究了硝酸根和甲酸根的浓度效应及ｐＨ效应。实验结果表明，硝酸根在ＴｉＯ２表面的吸附是加附是加速该光催化还原反应的重要因素。
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| 关 键 词： | 光催化 |
| 收稿时间： | 1999-06-25 |
PHOTOCATALYTIC REDUCTION OF NITRATE TO AMMONIA ON TITANIA IN THE PRESENCE OF FORMIC ACID |
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| Li Yuexiang,Peng Shaoqin,Dai Chao,Fritz Wasgestian.PHOTOCATALYTIC REDUCTION OF NITRATE TO AMMONIA ON TITANIA IN THE PRESENCE OF FORMIC ACID[J].Chinese Journal of Catalysis,1999,20(3):378-380. |
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| Authors: | Li Yuexiang Peng Shaoqin Dai Chao Fritz Wasgestian |
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| Abstract: | Using formic acid as a hole scavenger, photocatalytic reduction of nitrate to NH 3 has been investigated. Compared with oxalic acid, formic acid accelerates the reaction more considerably. The effects of concentration of nitrate and formate, and pH have been studied. It is showed that the adsorption of nitrate on TiO 2 is an important factor for accelerating the reaction. |
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| Keywords: | formic acid nitrate titania photocatalysis |
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