| 纳米TiO2光催化氧化甘氨酸及其氧化机理的研究 |
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| 引用本文： | 张昌军,艾仕云,朱鲁生. 纳米TiO2光催化氧化甘氨酸及其氧化机理的研究[J]. 山东大学学报(理学版), 2006, 41(4): 148-151 |
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| 作者姓名： | 张昌军 艾仕云 朱鲁生 |
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| 作者单位： | 泰山医学院化学与化学工程学院,山东,泰安,271000;山东农业大学,化学与材料科学学院,山东,泰安,271018;山东农业大学,资源与环境学院,山东,泰安,271018 |
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| 摘 要： | 研究了纳米TiO2对甘氨酸的光催化氧化性能及其氧化机理．结果表明，在实验浓度范围内，甘氨酸的光催化氧化符合准一级动力学反应．纳米TiO2的用量和溶液pH值都影响光催化反应．外加无机氧化物，能有效地捕获光致电子，增加溶液中羟基自由基的浓度，提高甘氨酸的光催化氧化能力．
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| 关 键 词： | 甘氨酸 光催化 氧化机理 纳米TiO2 |
| 文章编号： | 1671-9352（2006）04-0148-04 |
| 收稿时间： | 2006-06-06 |
| 修稿时间： | 2006-06-06 |
Study on the photocatalytic oxidation behaviour and mechanism of glycine on nano-TiO2 |
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| ZHANG Chang-jun,AI Shi-yun,ZHU Lu-sheng. Study on the photocatalytic oxidation behaviour and mechanism of glycine on nano-TiO2[J]. Journal of Shandong University, 2006, 41(4): 148-151 |
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| Authors: | ZHANG Chang-jun AI Shi-yun ZHU Lu-sheng |
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| Abstract: | The photocatalytic oxidation of glycine by nano-TiO2 was investigated and the mechanism of this kind of reactions was preliminarily discussed. The results show that the photocatalytic oxidation is found to be pseudo-first order kinetics in all concentrations tested. The reaction-affecting factors, such as the content of nano-TiO2 and pH of the solution, have important influences on the experimental results. Not only the inorganic oxides externally added can facilitate the capture of the photoinduced electrons, but the photocatalytic oxidatian capabilities can be remarkably improved with the increasing of hydroxyl radicals. |
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| Keywords: | glycine photocatalytic oxidation mechanism nano-TiO2 |
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