Coupling adsorption with two different photochemical oxidation methods was investigated. in order to treat industrial gaseous effluents containing a low concentration of Volatile Organic Compounds (VOC). Prior to adsorption/photocatalysis cyclic study. new TiO2 based catalysts were prepared by impregnating commercial zeolites in pellets form using a sol-gel technique. https://bursgaers.shop/product-category/notebook/