In this study, Ibuprofen (IBP) degradation by the photo catalytic process was investigated under various parameters, such as UV intensity, optimum dosage of TiO2, alkalinity, temperature and pH of bulk solution. The pseudo-first order degradation rate constants were in the order of 10-1 to 10-4 min-1 depending on each condition. The Photocatalytic IBP degradation rate increased with an increase in the applied UV power. At high UV intensity a high rate of tri-iodide (I3 -) ion formation was also observed. Moreover, in order to avoid the use of an excess catalyst, the optimum dosage of catalyst under the various UV intensities (30 and 40 W/L) was examined and ranged from approximately 0.1 gL-1. The photo catalytic IBP degradation rate was changed depending on the alkalinity and temperature and pH in the aqueous solution. This study demonstrated the potential of photo catalytic IBP degradation under different conditions.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험장치
  2.2. 실험재료 및 분석방법
 3. 결과 및 고찰
  3.1. 광촉매 공정에서 자외선 강도 변화에 따른 이부프로펜의 분해 속도
  3.2. 광촉매 공정에서 이산화티타늄 주입량 변화에 따른 이부프로펜의 분해 속도
  3.3. 광촉매 공정에서 알칼리도 변화에 따른 이부프로펜의 분해 속도
  3.4. 광촉매 공정에서 온도 변화에 따른 이부프로펜의 분해 속도
  3.5. 광촉매공정에서 pH 변화에 따른 이부프로펜의 분해 속도
 4. 결 론
 참 고 문 헌

• 채금화(고려대학교 건축사회환경공학과) | Jin-Hua Cai (Department of Civil Environmental and Architecture, Korea University)
• 나승민(고려대학교 건축사회환경공학과) | Seung-Min Na (Department of Civil Environmental and Architecture, Korea University)
• 안윤경(한국기초과학지원연구원/서울센터 분석연구부) | Yun-Gyong Ahn (Korea Basic Science Institute)
• 이세반(고려대학교 건축사회환경공학과) | Se-Ban Lee (Department of Civil Environmental and Architecture, Korea University)
• 김지형(고려대학교 건축사회환경공학과) | Jee-Hyeong Khim (Department of Civil Environmental and Architecture, Korea University) Corresponding author