Exhaust gas purification device, and exhaust gas purification method using same

摘要

Provided is an exhaust gas purification device that is provided with an oxidation catalyst for purifying by oxidizing particulate matter contained in the exhaust gas from an internal combustion engine, and wherein the oxidation catalyst is provided with: a carrier comprising at least one metal salt selected from the group consisting of calcium sulfate and phosphate; and a silver-containing substance carried on the carrier.