ZSM-5を混合させたAgCl/Al_2O_3触媒によるNOの光除去

概要

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Novel AgCl/Al_2O_3-ZSM-5 catalyst was prepared by mechanical mixing of AgCl impregnated Al_2O_3 with ZSM-5 powder and annealing at 873K. The rate of NO conversion under UV illumination was evaluated in the presence of O_2 in a flow-type reaction over the prepared material and compared against AgCl (Ag: 5.0 mass%)/Al_2O_3 catalyst and previously studied AgCl/Al_2O_3 and Ag/Al_2O_3 catalysts. It was found that generally AgCl containing samples exhibit higher NO conversion rates. The major products of NO conversion over AgCl/Al_2O_3-ZSM-5 were N_2 and O_2, while NO was primarily converted to N_2O on AgCl/Al_2O_3 sample. Characterizations of the prepared materials were carried out using XRD and UV-Vis diffuse reflectance spectroscopy. The peculiarities of the observed behavior were discussed.
社団法人日本セラミックス協会の論文
2005-08-01