V2O5-TiO2 catalysts were prepared by various methods. V2O5-TiO2 were prepared by sol-gel method with different drying conditions (aerogel and xerogel), and V2O5 supported on TiO2 obtained by sol-gel method with precipitation-deposition method and impregnation method. The performance of the V2O5-TiO2 catalysts was investigated for the selective oxidation of hydrogen sulfide in the stream containing both ammonia and excess water. All the catalysts showed good dispersion of vanadium and they had high H2S conversion with no or little production of sulfur dioxide. The V2O5-TiO2 aerogel catalyst prepared by sol-gel method with drying under super critical condition had the highest surface area which led to better catalytic activity compared to those by other synthesis methods.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 촉매 제조
    2.2. 실험 방법
3. 결과 및 고찰
4. 결 론
REFERENCES

• 김문일(부산가톨릭대학교 환경행정학과) | Moon il Kim (Department of Environmental Administration, Catholic University in Pusan) Corresponding author