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纳米TiO2光催化降解苯酚的动力学研究
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.
作者姓名:孙福侠  吴鸣  王红  王复东  顾婉贞
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
基金项目:中国科学院基金;KJ951-A1-505;
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。

关 键 词:光催化
收稿时间:1999-06-25

KINETIC STUDIES ON PHOTOCATALYTIC DEGRADATION OF PHENOL BY NANOMATERIAL TITANIUM DIOXIDE
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.
Authors:Sun Fuxia  Wu Ming  Wang Hong  Wang Fudong  Gu Wanzhen
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.
Keywords:titanium dioxide  phenol  photocatalysis  degradation  kinetic model  
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