Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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A Study on the Preparation of SiC Nano powder from the Si Waste of Solar Cell Industry

태양전지 산업(産業)에서 배출(排出)되는 Si waste로부터 SiC 분말 제조에 관한 연구(硏究)

  • Jang, Eun-Jin (Energy Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Young-Hee (Energy Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Yoon-Joo (Energy Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Soo-Ryong (Energy Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Kwon, Woo-Teck (Energy Materials Center, Korea Institute of Ceramic Engineering and Technology)
  • 장은진 (세라믹연구원 에너지소재센타) ;
  • 김영희 (세라믹연구원 에너지소재센타) ;
  • 이윤주 (세라믹연구원 에너지소재센타) ;
  • 김수용 (세라믹연구원 에너지소재센타) ;
  • 권우택 (세라믹연구원 에너지소재센타)
  • Received : 2010.08.13
  • Accepted : 2010.10.07
  • Published : 2010.10.30
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Abstract

SiC powders have been recovered from silicon-containing waste slurry by carbothermal reduction method with carbon black. Large amount of silicon-containing waste slurry is generated from Solar Cell industry. In an environmental and economic point of view, retrieve of the valuable natural resource from the silicon waste is important. In this study, SiC powder recovered by the reaction ball-milled silicon powder from waste and carbon black at $1350^{\circ}C$ for 3h under vacuum condition. Physical properties of samples have been characterized using SEM, XRD, Particle size analyzer and FT-IR spectroscopy.

태양전지산업으로부터 배출되는 Si waste로부터 탄소환원법을 사용하여 SiC 분말을 제조하였다. 태양광 산업의 실리콘 웨이퍼 가공 공정에서 다량의 실리콘 및 오일 포함된 폐액이 발생한다. 환경과 경제적인 측면에서 폐액으로부터 실리콘 성분을 재회수하는 기술의 개발은 매우 중요하다. 본 연구에서는 폐 실리콘를 milling하여 나노화한 후 카본 블랙과 혼합하고 진공분위기에서 $1,350^{\circ}C$로 열처리하여 100 nm크기의 균일한 입도를 갖는 SiC 분말을 제조하였다. 폐실리콘과 생성물의 물리적 특성을 SEM, XRD, 입도분석 그리고 원자 흡수 분광기를 사용하여 분석하였다.

Keywords

References

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