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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、水蒸气体积分数等因素对n－C7 H16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光催化氧化反应的动力学行为及机理．
The degradation of n-C7H16 in gas phase was studied by ZnO photocatalytic oxidation. The effects of oxygen and steam volume fraction on the photocatalytic oxidation of n-C7 H16 were investigated. The gas composition of the gas phase photocatalytic reaction was analyzed qualitatively by gas chromatography-mass spectrometry and gas chromatograph. The main intermediate product propionaldehyde was quantitatively analyzed. It was found that ZnO ultrafine particles photocatalytic oxidation of n- The degradation rate of C7H16 was high, most of n-C7H16 was completely oxidized to CO2, and the kinetic behavior and mechanism of n-C7H16 photocatalytic oxidation reaction were discussed.