THEORETICAL INVESTIGATION ON NANO TiO2 PHOTOCATALYTIC OXIDATION OF VOCS

摘要：

Controlling mechanisms for photocatalytic degradation of volatile organic compounds by nano TiO2 catalyst are found to be mass transfer,diffusion, adsorption and photochemistry. A mathematical model for the degradation process is developed by incorporating these mechanisms in a plane plate air purification physical model. Finite difference method is employed to solve the governing equation and boundary conditions. The computation results are validated using the data from experiments. The model is then used to investigate the effects of some key factors on the degradation of formaldehyde including UV light intensity, UV light attenuation coefficient,adsorption, catalyst thickness, and flow rate.

关键词： Nano TiO2 Photocatalysis VOCs Theoretical Study

作者: Huili Yu Kaili Zhang Carole Rossi

作者单位: College of Engineering, Ocean University of China, China LAAS-CNRS, 7 ave du colonel Roche, 31077 Toulouse, France

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）