Adsorption/desorption and catalytic oxidation of VOCs on montmorillonite and pillared clays

In present work, adsorption/desorption and catalytic oxidation of three common volatile organic compounds on Na-montmorillonite. Al and AlCe pillared clays supported Pd catalysts, were investigated. The results showed that after pillaring, S-BET. V-micro and V-meso of clays were obviously increased, which then improved the Pd dispersion. Catalysts with suitable amount and strength of acidity are fit for VOC adsorption and deep oxidation. VOC adsorption/desorption and catalytic activity results showed that catalysts with high S-BET, large pore volume and suitable acidity can adsorb more VOCs, and exhibit better catalytic activity for VOC deep oxidation. (C) 2012 Elsevier B.V. All rights reserved.