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| ZnO超微粒子光催化氧化降解n-C7H16的研究 | |
| 引用本文： | 井立强,徐自力,杜尧国,孙晓君,王玲,周秀清,单洪岩,蔡伟民.ZnO超微粒子光催化氧化降解n-C7H16的研究[J].高等学校化学学报,2002,23(5):871-875. |
| 作者姓名： | 井立强 徐自力 杜尧国 孙晓君 王玲 周秀清 单洪岩 蔡伟民 |
| 作者单位： | 1. 哈尔滨工业大学环境科学与工程系,哈尔滨,150001 2. 吉林大学环境科学与工程系,长春,130023 3. 吉林大学分析测试实验中心,长春,130023 |
| 摘 要： | 利用ZnO光催化氧化技术对气相n-C7H16进行了降解研究，考察了氧气、水燕气体积分数等因素对n-C7H16光催化氧化的影响，利用气相色谱－质谱联用仪和气相色谱仪对气相光催化反应过程中的气体组成进行了定性分析，并对主要中间产物丙醛进行了定量分析，结果发现，ZnO超微粒子光催化氧化n-C7H16的降解率较高，n-C7H16绝大部分被完全氧化成CO2，探讨了n-C7H16光催化氧化反尖的动力学行为及机理。 |
| 关 键 词： | ZnO 超微粒子 光催化氧化 降解 n－C7H16 氧化锌 半导体光催化剂 有机污染物 庚烷 反应动力学 |
| 文章编号： | 0251-0790(2002)05-0871-05 |
Investigation on Photocatalytic Oxidation Degradation of n-C7H16 over ZnO Ultrafine Particles |
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| JING Li-Qiang,XU Zi-Li,DU Yao-Guo,SUN Xiao-Jun,WANG Ling,ZHOU Xiu-Qing,SHAN Hong-Yan,CAI Wei-Min.Investigation on Photocatalytic Oxidation Degradation of n-C7H16 over ZnO Ultrafine Particles[J].Chemical Research In Chinese Universities,2002,23(5):871-875. | |
| Authors: | JING Li-Qiang XU Zi-Li DU Yao-Guo SUN Xiao-Jun WANG Ling ZHOU Xiu-Qing SHAN Hong-Yan CAI Wei-Min |
| Institution: | JING Li-Qiang1,XU Zi-Li2,DU Yao-Guo2,SUN Xiao-Jun1,WANG Ling3,ZHOU Xiu-Qing3,SHAN Hong-Yan3,CAI Wei-Min1 |
| Abstract: | Abstract The degradation of gas-phase n-C7H16 by the technique of photocatalytic oxidation on ZnO wasinvestigated. It was found that under a certain condition of reaction, the photocatalytic oxidation degrada-tion rate of n-C7H16 on ZnO ultrafine particles (UFP) was higher. The influences of some factors such as O2volume fraction and H2O(g) volume fraction on photocatalytic oxidation of n-C7H16 were studied. The gascomposition during photocatalytic oxidation of n-C7H16 was qualitatively analyzed by using gas chromatog-raphy (GC ) and gas chromatogram-mass spectrum (GC-MS), and the principal intermediate product,propanal, was quantitatively analyzed, which could demonstrate that the most part of n-C7H16 degraded byphotocatalytic oxidation on ZnO was oxided to CO2. In addition, the kinetics and mechanism of photo-catalytic oxidation reaction of n-C7H16 were also probed into. |
| Keywords: | n-C7H16 ZnO Ultrafine particles Photocatalytic oxidation Kinetics and mechanism |
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