Use of Silica Particles made by Nonionic Surfactant for VOCs Sorption

Adsorption of light organic compounds such acetone,1-propanol and carbon dioxide was tested by using mesoporous silica materials made from non ionic surfactant with long chain and silica sources as tetraethylorthosilicate (teos) and modified na-x zeolite. x-ray powder diffraction (xrd),nitrogen adsorption-desorption analysis and scanning electron microscopy (sem) were applied to characterize the silica particles of a variety prepared samples. acetone,1-propanol and co2 adsorption at 298k was evaluated by a volumetric method and indicate a high sorption capacity of organic compounds depending essentially on the porous texture of adsorbents. an adsorption kinetic model was proposed to describe the adsorption of vocs over template-free mesoporous silica materials. a good agreement with experimental data was found.