Ti-SBA-15 catalysts doped with samarium ion were synthesized using conventional hydrothermal method. The physical properties of Sm/Ti-SBA-15 catalysts have been characterized by XRD, FT-IR, DRS and PL. In addition, we have also examined the activity of these materials on the photocatalytic decomposition of methylene blue. The Sm/ Ti-SBA-15 was shown to have the mesoporous structure regardless of Sm ion doping. With doping amount of 1% lanthanide ion, the pore size and pore volume of Sm(Er, Cs)/Ti-SBA-15 decreased and the surface area increased. For the purpose of vibration characteristics on the Ti-SBA-15 and Sm/Ti-SBA-15 photocatalysts, the IR absorption at 960 cm-1 commonly accepted the characteristic vibration of Ti-O-Si bond. 1% of Sm/Ti-SBA-15 had the highest photocatalytic activity on the decomposition of methylene blue but the catalysts doped with Er ions had lower activity in comparison with pure Ti-SBA-15 catalyst.

Abstract
 1. 서 론
 2. 재료 및 방법
 3. 결과 및 고찰
  3.1. 촉매의 특성분석
  3.2. 광촉매 활성
 4. 결 론
 참 고 문 헌

• 정원영(부경대학교 화학공학과) | Won Young Jung (Department of Chemical Engineering, Pukyong National University)
• 이성훈(부경대학교 화학공학과) | Seong Hun Lee (Department of Chemical Engineering, Pukyong National University)
• 홍성수(부경대학교 화학공학과) | Seong-Soo Hong (Department of Chemical Engineering, Pukyong National University) Corresponding Author