| 纳米TiO2光催化降解苯酚的动力学研究 |
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| 引用本文： | 孙福侠,吴鸣,王红,王复东,顾婉贞. 纳米TiO2光催化降解苯酚的动力学研究[J]. 催化学报, 1999, 20(3): 301-304 |
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| 作者姓名： | 孙福侠 吴鸣 王红 王复东 顾婉贞 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,大连,116023
2. 大连大学化学系,大连,116622 |
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| 基金项目： | 中国科学院基金;KJ951-A1-505; |
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| 摘 要： | 以１２５Ｗ高压汞灯为光源，以ＴｉＯ２为催化剂，对不同初始浓度的苯酚水溶液进行了光催化降解实验。同时，考察了不同溶液ｐＨ值时的光催化行为。根据实验结果，提出了与文献报道不同的ＴｉＯ２光催化降解苯酚的零级反应动力学模型。
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| 关 键 词： | 光催化 |
| 收稿时间： | 1999-06-25 |
KINETIC STUDIES ON PHOTOCATALYTIC DEGRADATION OF PHENOL BY NANOMATERIAL TITANIUM DIOXIDE |
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| Sun Fuxia,Wu Ming,Wang Hong,Wang Fudong,Gu Wanzhen. KINETIC STUDIES ON PHOTOCATALYTIC DEGRADATION OF PHENOL BY NANOMATERIAL TITANIUM DIOXIDE[J]. Chinese Journal of Catalysis, 1999, 20(3): 301-304 |
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| Authors: | Sun Fuxia Wu Ming Wang Hong Wang Fudong Gu Wanzhen |
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| Abstract: | The photocatalytic degradation of phenol with different initial concentration by titanium dioxide suspension has been investigated under irradiation of 125 W high pressure mercury lamp. The photocatalytic reaction was also examined under different pH values. The experimental results indicated that the apparent rate constant K of the photocatalytic degradation of phenol was related to the initial concentration and the pH value of the phenol solution. The apparent rate constant K linearly increased with increasing the initial phenol concentration and with increasing the pH value up to 9. Based on the experimental results, a zero order kinetic model was proposed, being different from that reported in literatures. |
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| Keywords: | titanium dioxide phenol photocatalysis degradation kinetic model |
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