A Novel Ru Loaded Hydroxyapatite Catalyst Prepared by a Facile and Efficient Deposition Method for Catalytic Oxidation of Toluene and Dichloromethane

Ru/HAP catalyst with high-dispersion is prepared by a novel homogeneous deposition precipitation method (DPU). As compared to the conventional impregnation method (IM), the catalytic oxidation performance for toluene and DCM are much higher for DPU-sample with higher activity and good stability in humid air. Characterizations reveal that DPU-sample has a larger surface area with mesoporous structure, keeping smaller Ru particle size and uniform distribution on HAP, which is favorable for the exposure of active sites. The preparation and reaction conditions were also systematically studied, showing that 0.5 Ru/HAP(500)-DPU sample is a promising catalyst for VOC and CVOC removal.

The Ru/HAP (DPU) is a promising broad-spectrum catalyst for VOC and CVOC removal.