EXHAUST GAS PURIFICATION DEVICE, AND EXHAUST GAS PURIFICATION METHOD USING SAME

An exhaust gas purification device includes an oxidation catalyst for oxidizing and purifying particulate matter contained in exhaust gas from an internal combustion engine, wherein the oxidation catalyst is provided with a support constituted by at least one metal salt selected from a group consisting of Ca sulfate and phosphate, and a silver-containing substance supported on the support.