Ethyl benzene is a volatile organic compound that is used in the many industries, including Oil and Gas, Oil colored and Insecticides. Due to the toxic effects of this chemical substance control and elimination of this vapor is necessary. Photo catalytic degradation is a possible method to remove organic compounds from air. This study was performed to determine the efficiency of photo catalytic removal of ethyl benzene vapor using TiO₂ nanoparticles immobilized on the ZSM-5 zeolite under UV radiation. This was an experimental study. The surface and volume of the pores of the bed were determined by the Bruner–Emmett–Teller (BET) method and Surface structure was determined by Scanning Electron Microscope (SEM), EDAX and X-Ray Diffraction (XRD). Dynamic air flow and different concentrations of ethyl benzene (25, 75 and 125 ppm) and flow rates (0.5, 0.7, and 1.0 L/min) were produced and the removal efficiency of ethyl benzene vapor were investigated using ZSM-5 and TiO2/ZSM-5/UV processes. The temperature and relative humidity were set at 25 ± 2°c and 35%. Evaluations for BET showed the specific surface areas decreased after loading TiO₂ on ZSM-5. XRD and EDAX analysis and SEM images showed that zeolite structure was stabled and nanoparticles were successfully stabilized on Ze. The results showed that the highest removal efficiency (52%) by the process of TiO2/ZSM-5/UV (5 wt%) at concentration 25 ppm and flow rate 0.5 L/min respectively. The result of this study showed that the TiO2/ZSM-5catalyst may be a applicable and hopeful method to removal of ethyl benzene from air flow under UV irradiation.

中文翻译：

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在实验室规模的紫外线辐射下，使用固定在ZSM-5沸石上的TiO2纳米颗粒从空气中去除乙苯蒸气污染物。

乙苯是一种挥发性有机化合物，可用于许多行业，包括石油和天然气，有色油和杀虫剂。由于这种化学物质的毒性作用，必须控制和消除这种蒸气。光催化降解是从空气中去除有机化合物的一种可能方法。进行这项研究以确定使用TiO ₂光催化去除乙苯蒸气的效率纳米粒子在紫外线辐射下固定在ZSM-5沸石上。这是一项实验性研究。床的孔的表面和体积通过Bruner-Emmett-Teller（BET）方法确定，表面结构通过扫描电子显微镜（SEM），EDAX和X射线衍射（XRD）确定。产生动态空气流量和不同浓度的乙苯（25、75和125 ppm）和流速（0.5、0.7和1.0 L / min），并使用ZSM-5和TiO2 /研究了乙苯蒸气的去除效率ZSM-5 / UV工艺。温度和相对湿度设定为25±2°c和35％。BET评估表明，加载TiO ₂后比表面积降低在ZSM-5上。XRD和EDAX分析以及SEM图像表明，沸石结构稳定，纳米颗粒在Ze上成功稳定。结果表明，在浓度为25 ppm和流速为0.5 L / min的情况下，通过TiO2 / ZSM-5 / UV（5 wt％）处理的最高去除效率（52％）。研究结果表明，TiO2 / ZSM-5催化剂可能是一种在紫外线辐射下去除空气中乙苯的适用方法和希望。