Hydrogen sulfide(H2S),which is highly odorous and toxic,commonly accompanies fuels in oil and gas refinery processes.Since,more stringent fuel-regulations and increasing environmental concerns have been issued,reducing H2S along with SO2 became one of the leading issues in emission reduction.TiO2 has been considered as a good catalyst and support in selective oxidation of hydrogen sulfide [1].Sol-gel method for preparation of the catalyst improved the catalytic activity compare to other methods [2].On the other hand,CeO2 has good redox property and high mobility of capping oxygen [3].