Toluene desorption of modified activated carbon for microwave irradiation was evaluated. As a virgin GAC reacted from microwave energy, it created an "arcing" between GAC particles in desorption process. The arcing became more and more vigorous and achieved a red flame of GAC. The silica coated GAC(Si/GAC) was developed to prevent arcing phenomenon and temperature control problem. The result shows virgin GAC with 5wt%, 10wt% and 20wt% silica had no arcing and could control temperature very well. However, the adsorption rate of Si/GAC was decreased by coated silica amount due to decreasing surface area of GAC. The 5wt% Si/GAC adsorption rate was quite similar to virgin GAC adsorption rate. After adsorption, the toluene-loaded GAC and Si/GAC was reactivated by 2450MHz MW irradiation with 300W for 5 min. Quantitative desorption of the toluene was achieved at MW irradiation at 300W with desorption efficiencies as high as 98.59% to 84.65%% after four cycles.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 연구재료 및 시약
  2.2. 연구방법
 3. 결과 및 고찰
  3.1. 표면분석
  3.2. 마이크로파 조사에 따른 방전 및 온도 변화
  3.3. 톨루엔의 흡착 및 탈착
 4. 결 론
 참 고 문 헌

• 최성우(계명대학교 환경과학) | Sung-Woo Choi (Department of Environmental Science and Engineering, Keimyung University) Corresponding Author
• 추헌직(계명대학교 환경과학) | Heon-Jik Chu (Department of Environmental Science and Engineering, Keimyung University)